hi::v1 Namespace Reference

The HikoGUI API version 1. More...

Data Structures
class	aarectangle
	Class which represents an axis-aligned rectangle. More...
class	abstract_button_widget
	Base class for implementing button widgets. More...
class	alignment
	Horizontal/Vertical alignment combination. More...
struct	array_generic
	Intrinsic operations on arrays. More...
struct	array_intrinsic
	Intrinsic operations on arrays. More...
class	async_delegate
	A button delegate controls the state of a button widget. More...
class	async_widget
	A GUI widget that permits the user to make a binary choice. More...
class	audio_block
	A block of audio data. More...
class	audio_channel
class	audio_device
	A set of audio channels which can be rendered and/or captures at the same time. More...
class	audio_device_asio
	A class representing an audio device on the system. More...
class	audio_device_delegate
class	audio_device_widget
	Audio device configuration widget. More...
class	audio_device_win32
class	audio_format_range
struct	audio_sample_format
	Audio sample format. More...
class	audio_sample_packer
class	audio_sample_unpacker
struct	audio_stream_config
struct	audio_stream_format
	The format of a stream of audio. More...
class	audio_system
class	audio_system_aggregate
class	audio_system_asio
class	audio_system_win32
struct	audio_system_win32_event
struct	bezier_curve
struct	bezier_point
struct	box_constraints
	2D constraints. More...
struct	box_shape
class	button_delegate
	A button delegate controls the state of a button widget. More...
class	callback
class	callback< ResultType(ArgTypes...)>
	A callback function. More...
class	cancel_error
	Cancel error is caused by user pressing cancel. More...
struct	cancel_features
	Type trait to retrieve the cancel feautes of a invokable. More...
struct	char_converter
	A converter between character encodings. More...
struct	char_map
	Character encoder/decoder template. More...
struct	char_map<"ascii">
	ASCII (7-bit) character map. More...
struct	char_map<"cp-1252">
	CP-1252 / Windows-1252 character map. More...
struct	char_map<"iso-8859-1">
	ISO-8859-1 / Latin-1 character map. More...
struct	char_map<"utf-16">
	Unicode UTF-16 encoding. More...
struct	char_map<"utf-32">
	Unicode UTF-32 encoding. More...
struct	char_map<"utf-8">
	Unicode UTF-8 encoding. More...
class	checkbox_widget
	A GUI widget that permits the user to make a binary choice. More...
class	circle
	A type defining a 2D circle. More...
struct	cmake_install
class	color
	This is a RGBA floating point color. More...
class	const_resource_view
	A read-only view of a resource. More...
struct	convertible_to_any
	A type that can be implicitly converted to any type. More...
struct	copy_cv
	Type-trait to copy const volatile qualifiers from one type to another. More...
struct	copy_cv< To, From >
class	corner_radii
	The 4 radii of the corners of a quad or rectangle. More...
struct	cpu_id_result
class	datum
	A dynamic data type. More...
class	default_async_delegate
	A default async button delegate. More...
class	default_radio_delegate
	A default radio button delegate. More...
class	default_selection_delegate
	A delegate that control the state of a selection_widget. More...
class	default_tab_delegate
	A delegate that control the state of a tab_widget. More...
class	default_text_delegate
	A default text delegate. More...
class	default_text_delegate< char const * >
	A default text delegate specialization for std::string. More...
class	default_text_delegate< gstring >
	A default text delegate specialization for gstring. More...
class	default_text_delegate< std::string >
	A default text delegate specialization for std::string. More...
class	default_text_delegate< txt >
	A default text delegate specialization for translate. More...
class	default_text_field_delegate
	A default text delegate. More...
class	default_text_field_delegate< T >
	A default text delegate specialization for std::integral<T>. More...
class	default_toggle_delegate
	A default toggle button delegate. More...
struct	default_values
	A type traits for generating default values of a type. More...
struct	default_values< T >
class	defer
	Defer execution of a lambda to the end of the scope. More...
struct	DeviceIndependentPixelLengthDim
struct	Dips
	Device Independent Pixel. More...
struct	DipsPerEm
struct	draw_attributes
	The draw attributes used to draw shaped into the draw context. More...
class	draw_context
	Draw context for drawing using the HikoGUI shaders. More...
struct	EmSquares
struct	endian_buf_t
class	enum_metadata
	A object that holds enum-values and strings. More...
struct	enum_metadata_name
struct	enum_metadata_name< char * >
struct	enum_metadata_name< char const * >
struct	enum_metadata_name< char const[N]>
struct	enum_metadata_name< char[N]>
class	extent2
	A high-level geometric extent. More...
class	extent3
	A high-level geometric extent. More...
class	file
	A File object. More...
class	file_view
	Map a file into virtual memory. More...
struct	fixed_string
	A string which may be used as a none-type template parameter. More...
class	font_char_map
	Character map of a font. More...
class	font_size_quantity
struct	forward_copy_or_ref
class	gfx_error
class	gfx_pipeline_box
class	gfx_pipeline_image
class	gfx_pipeline_override
class	gfx_pipeline_SDF
class	gfx_pipeline_tone_mapper
class	glob_pattern
	A glob pattern. More...
struct	graphic_path
	A path is a vector graphics object. More...
class	grid_layout
	Grid layout algorithm. More...
class	grid_widget
	A GUI widget that lays out child-widgets in a grid with variable sized cells. More...
class	gui_error
class	gui_event
	A user interface event. More...
struct	half
struct	has_add_callback
struct	has_floatxx
	Has an float of a specific size. More...
struct	has_intxx
	Has an signed integer of a specific size. More...
struct	has_native_floatxx
	Has an float of a specific size, natively supported by the compiler. More...
struct	has_native_floatxx< 32 >
struct	has_native_floatxx< 64 >
struct	has_native_intxx
	Has an signed integer of a specific size, natively supported by the compiler. More...
struct	has_native_intxx< 16 >
struct	has_native_intxx< 32 >
struct	has_native_intxx< 64 >
struct	has_native_intxx< 8 >
struct	has_native_uintxx
	Has an unsigned integer of a specific size, natively supported by the compiler. More...
struct	has_native_uintxx< 16 >
struct	has_native_uintxx< 32 >
struct	has_native_uintxx< 64 >
struct	has_native_uintxx< 8 >
struct	has_uintxx
	Has an unsigned integer of a specific size. More...
struct	has_value_type
struct	hresult_error_category
class	huffman_tree
class	icon_widget
	An simple GUI widget that displays an icon. More...
class	id_factory
	A factory for unique IDs. More...
class	indent
	Indentation for writing out text files. More...
class	io_error
	Exception thrown during I/O on an error. More...
struct	is_atomic
struct	is_atomic< std::atomic< T > >
struct	is_byte_like
	An array of this type will implicitly create objects within that array. More...
struct	is_byte_like< char >
struct	is_byte_like< char const >
struct	is_byte_like< std::byte >
struct	is_byte_like< std::byte const >
struct	is_byte_like< unsigned char >
struct	is_byte_like< unsigned char const >
struct	is_character
struct	is_character< char >
struct	is_character< char const >
struct	is_character< char16_t >
struct	is_character< char16_t const >
struct	is_character< char32_t >
struct	is_character< char32_t const >
struct	is_character< char8_t >
struct	is_character< char8_t const >
struct	is_character< wchar_t >
struct	is_character< wchar_t const >
struct	is_checkbox_widget_attribute
class	is_datum_type
class	is_datum_type< bool >
class	is_datum_type< bstring >
class	is_datum_type< double >
class	is_datum_type< long long >
class	is_datum_type< std::chrono::year_month_day >
class	is_datum_type< std::string >
struct	is_decayed_base_of
struct	is_decayed_derived_from
struct	is_derived_from
struct	is_forward_of
	Is context a form of the expected type. More...
struct	is_forward_of< Context, Expected * >
struct	is_forward_of< Context, Expected >
struct	is_forward_of< Context, Expected, FirstOtherExpected, OtherExpected... >
struct	is_forward_of< Context, observer< Expected > >
struct	is_forward_of< Context, Result(Args...)>
struct	is_forward_of< Context, std::shared_ptr< Expected > >
struct	is_forward_of< Context, std::unique_ptr< Expected > >
struct	is_forward_of< Context, std::weak_ptr< Expected > >
struct	is_numeric
	Is a numeric. More...
struct	is_numeric< double >
struct	is_numeric< float >
struct	is_numeric< long double >
struct	is_numeric< signed char >
struct	is_numeric< signed int >
struct	is_numeric< signed long >
struct	is_numeric< signed long long >
struct	is_numeric< signed short >
struct	is_numeric< unsigned char >
struct	is_numeric< unsigned int >
struct	is_numeric< unsigned long >
struct	is_numeric< unsigned long long >
struct	is_numeric< unsigned short >
struct	is_numeric_integral
	Is a numeric integer. More...
struct	is_numeric_integral< signed char >
struct	is_numeric_integral< signed int >
struct	is_numeric_integral< signed long >
struct	is_numeric_integral< signed long long >
struct	is_numeric_integral< signed short >
struct	is_numeric_integral< unsigned char >
struct	is_numeric_integral< unsigned int >
struct	is_numeric_integral< unsigned long >
struct	is_numeric_integral< unsigned long long >
struct	is_numeric_integral< unsigned short >
struct	is_numeric_signed_integral
	Is a numeric signed integer. More...
struct	is_numeric_signed_integral< signed char >
struct	is_numeric_signed_integral< signed int >
struct	is_numeric_signed_integral< signed long >
struct	is_numeric_signed_integral< signed long long >
struct	is_numeric_signed_integral< signed short >
struct	is_numeric_unsigned_integral
	Is a numeric unsigned integer. More...
struct	is_numeric_unsigned_integral< unsigned char >
struct	is_numeric_unsigned_integral< unsigned int >
struct	is_numeric_unsigned_integral< unsigned long >
struct	is_numeric_unsigned_integral< unsigned long long >
struct	is_numeric_unsigned_integral< unsigned short >
class	iso_15924
	ISO-15924 script code. More...
class	jsonpath
class	key_error
class	keyboard_bindings
struct	keyboard_target_data
class	label_widget
	The GUI widget displays and lays out text together with an icon. More...
class	language_tag
	The IETF BCP 47 language tag. More...
class	lean_vector
	Lean-vector with (SVO) short-vector-optimization. More...
class	length_quantity
struct	lexer_config
class	line_segment
	Line segment. More...
class	log
class	lookahead_iterator
	Lookahead iterator. More...
class	lookat
	Perspective transform. More...
struct	make_floatxx
	Make an floating point. More...
struct	make_floatxx< 32 >
struct	make_floatxx< 64 >
struct	make_intmax
struct	make_intmax< T >
struct	make_intxx
	Make an signed integer. More...
struct	make_intxx< 16 >
struct	make_intxx< 32 >
struct	make_intxx< 64 >
struct	make_intxx< 8 >
struct	make_promote
struct	make_string
	type-trait to convert a character to a string type. More...
struct	make_string< char >
struct	make_string< char16_t >
struct	make_string< char32_t >
struct	make_string< char8_t >
struct	make_string< wchar_t >
struct	make_string_view
	type-trait to convert a character to a string_view type. More...
struct	make_string_view< char >
struct	make_string_view< char16_t >
struct	make_string_view< char32_t >
struct	make_string_view< char8_t >
struct	make_string_view< wchar_t >
struct	make_uintxx
	Make an unsigned integer. More...
struct	make_uintxx< 16 >
struct	make_uintxx< 32 >
struct	make_uintxx< 64 >
struct	make_uintxx< 8 >
class	margins
	The left, bottom, right and top margins. More...
class	matrix2
	A 2D or 3D homogenius matrix for transforming homogenious vectors and points. More...
class	matrix3
	A 2D or 3D homogenius matrix for transforming homogenious vectors and points. More...
class	menu_button_widget
	Add menu-button around a small-button. More...
class	momentary_button_widget
	A momentary button widget. More...
struct	mouse_event_data
	Information for a mouse event. More...
class	not_found_error
	Exception thrown when an item was not found. More...
struct	number_of_data_members
struct	observable_msg
class	observed
class	observed_base
	An abstract observed object. More...
class	observer
	A observer pointing to the whole or part of a observed_base. More...
struct	observer_decay
	A type-trait for observer arguments. More...
struct	observer_decay< observer< T > & >
struct	observer_decay< observer< T > && >
struct	observer_decay< observer< T > >
struct	observer_decay< observer< T > const & >
class	operation_error
	Exception thrown during execution of a dynamic operation. More...
class	os_error
	Exception thrown during an operating system call. More...
struct	otype_fbyte_buf_t
	Open-type for 8 signed integer that must be scaled by the EM-scale. More...
struct	otype_fixed15_16_buf_t
	Open-type 16.16 signed fixed point, range between -32768.0 and 32767.999. More...
struct	otype_fixed1_14_buf_t
	Open-type 16-bit signed fraction, range between -2.0 and 1.999. More...
struct	otype_fuword_buf_t
	Open-type for 16 unsigned integer that must be scaled by the EM-scale. More...
struct	otype_fword_buf_t
	Open-type for 16 signed integer that must be scaled by the EM-scale. More...
struct	otype_glyf_component
class	overlay_widget
	A GUI widget which may exist anywhere on a window overlaid above any other widget. More...
struct	overloaded
	Helper type to turn a set of lambdas into a single overloaded type to pass to std::visit(). More...
class	parse_error
	Exception thrown during parsing on an error. More...
class	pcm_format
class	perspective
	Perspective transform. More...
struct	pickle
	Encode and decode a type to and from a UTF-8 string. More...
struct	pickle< bool >
struct	pickle< speaker_mapping >
struct	pickle< std::string >
struct	pickle< T >
struct	pixel_density
struct	PixelLengthDim
struct	Pixels
struct	PixelsPerEm
struct	PixelsPerInch
class	pixmap
	A 2D pixel-based image. More...
class	pixmap_span
	A non-owning 2D pixel-based image. More...
struct	plurality
	Plurality of a number. More...
class	png
struct	Points
struct	PointsPerEm
class	progress_sink
	A sink to read the current progress of a function. More...
class	progress_token
	Token to pass to a function to report its progress. More...
class	quad_color
	A color for each corner of a quad. More...
class	radio_delegate
	A radio delegate controls the state of a radio button widget. More...
class	radio_widget
	A GUI widget that permits the user to make a binary choice. More...
class	rectangle
	A rectangle / parallelogram in 3D space. More...
class	recursive_iterator
	An iterator which recursively iterates through nested containers. More...
struct	RelativeFontLengthDim
struct	remove_cvptr
class	rotate2
class	rotate3
class	row_column_layout
class	scale2
class	scale3
class	scroll_aperture_widget
	A scroll aperture widget. More...
class	scroll_bar_widget
	Scroll bar widget This widget is used in a pair of a vertical and horizontal scrollbar as a child of the scroll_widget. More...
class	scroll_widget
	The scroll widget allows a content widget to be shown in less space than is required. More...
class	selection_delegate
	A delegate that controls the state of a selection_widget. More...
class	selection_widget
	A graphical control element that allows the user to choose only one of a predefined set of mutually exclusive options. More...
struct	selector
	This selector allows access to member variable by name. More...
class	SHA2
class	SHA224
class	SHA256
class	SHA384
class	SHA512
class	SHA512_224
class	SHA512_256
struct	simd
class	spacer_widget
	This GUI widget is used as a spacer between other widget for layout purposes. More...
class	system_menu_widget
	The system menu widget. More...
class	tab_delegate
	A delegate that controls the state of a tab_widget. More...
class	tab_widget
	A graphical element that shows only one of a predefined set of mutually exclusive child widgets. More...
class	task_controller
	A task controller. More...
class	task_running_error
class	text_delegate
	A delegate that controls the state of a text_widget. More...
class	text_field_delegate
	A delegate that controls the state of a text_field_widget. More...
class	text_field_widget
	A single line text field. More...
class	text_widget
	A text widget. More...
class	theme_length
class	theme_variable
struct	three_way_comparison
	A functor to safely compare two arithmetic values. More...
struct	three_way_comparison< Lhs, Rhs >
class	toggle_delegate
	A button delegate controls the state of a button widget. More...
class	toggle_widget
	A GUI widget that permits the user to make a binary choice. More...
struct	token
class	toolbar_button_widget
	A momentary button used as a child in the toolbar. More...
class	toolbar_tab_button_widget
	A graphical control element that allows the user to choose only one of a predefined set of mutually exclusive views of a tab_widget. More...
class	toolbar_widget
	A toolbar widget is located at the top of a window and lays out its children horizontally. More...
struct	transform2
struct	transform2< matrix2 >
struct	transform2< rotate2 >
struct	transform2< scale2 >
struct	transform2< translate2 >
struct	transform3
struct	transform3< matrix3 >
struct	transform3< perspective >
struct	transform3< rotate3 >
struct	transform3< scale3 >
struct	transform3< translate3 >
class	translate2
class	translate3
struct	translation_key
class	txt
	A localizable message. More...
struct	type_documentation
	Documentation of a type. More...
struct	ucd_decomposition_info
	The decomposition info is used to determine how to decompose a code-point. More...
class	unfair_mutex_impl
	An unfair mutex This is a fast implementation of a mutex which does not fairly arbitrate between multiple blocking threads. More...
class	unfair_recursive_mutex
	An unfair recursive-mutex This is a fast implementation of a recursive-mutex which does not fairly arbitrate between multiple blocking threads. More...
struct	unusable_t
	A type that can not be constructed, copied, moved or destructed. More...
class	URI
	A Uniform Resource Identifier. More...
class	uri_error
class	URL
	Universal Resource Locator. More...
class	url_error
struct	use_first
struct	variant_decay
	Decays types for use as elements in std::variant. More...
struct	variant_decay< void >
class	vector2
	A high-level geometric vector Part of the high-level vector, point, mat and color types. More...
class	vector3
	A high-level geometric vector Part of the high-level vector, point, mat and color types. More...
class	weak_callback
class	weak_callback< ResultType(ArgTypes...)>
class	widget
	An interactive graphical object as part of the user-interface. More...
class	widget_intf
class	widget_layout
	The layout of a widget. More...
class	widget_state
	The state the widget is in. More...
class	win32_device_interface
struct	win32_error_category
class	win32_wave_device
class	window_controls_macos_widget
	Window control button widget. More...
class	window_controls_win32_widget
	Window control button widget. More...
class	window_widget
	The top-level window widget. More...
class	with_label_widget
	Add labels to a button. More...

Concepts
concept	array_generic_convertible_to
concept	audio_device_filter
concept	compatible_cancelable_async_function_none
concept	compatible_cancelable_async_function_stop
concept	compatible_cancelable_async_function_progress
concept	compatible_cancelable_async_function_stop_and_progress
concept	compatible_cancelable_async_task_none
concept	compatible_cancelable_async_task_stop
concept	compatible_cancelable_async_task_progress
concept	compatible_cancelable_async_task_stop_and_progress
concept	compatible_cancelable_async_callable
	A concept for a callable that may be use in cancelable_async_task().
concept	dsp_argument
concept	transformer2
concept	transformer3
concept	transformer
concept	draw_attribute
concept	draw_quad_shape
concept	forward_observer
concept	path_range
concept	bound_check_range_helper
concept	numeric
concept	numeric_integral
concept	numeric_signed_integral
concept	numeric_unsigned_integral
concept	arithmetic
concept	lvalue_reference
concept	rvalue_reference
concept	trivially_copyable
concept	different_from
	Different from.
concept	incompatible_with
	Incompatible with another type.
concept	base_of
concept	decayed_base_of
concept	derived_from
concept	decayed_derived_from
concept	strict_base_of
concept	strict_derived_from
concept	pre_incrementable
concept	pre_decrementable
concept	to_stringable
concept	from_stringable
concept	static_castableable
concept	sizeable
concept	scalar
concept	scoped_enum
	Concept for std::is_scoped_enum_v<T>.
concept	same_as_any
concept	forward_of
	True if T is a forwarded type of Forward.
concept	byte_like
	An array of this type will implicitly create objects within that array.
concept	nullable
	True if T can be assigned with a nullptr.
concept	dereferenceable
	True if T is dereferenceable.
concept	nullable_pointer
	True if T is both nullable and dereferenceable.
concept	button_widget_attribute
concept	async_widget_attribute
concept	checkbox_widget_attribute
concept	icon_widget_attribute
concept	label_widget_attribute
concept	menu_button_widget_attribute
concept	radio_widget_attribute
concept	selection_widget_attribute
concept	text_field_widget_attribute
concept	text_widget_attribute
concept	toggle_widget_attribute
concept	toolbar_tab_button_widget_attribute
concept	with_label_widget_attribute

Typedefs
using	i8x1 = simd<int8_t, 1>
using	i8x2 = simd<int8_t, 2>
using	i8x4 = simd<int8_t, 4>
using	i8x8 = simd<int8_t, 8>
using	i8x16 = simd<int8_t, 16>
using	i8x32 = simd<int8_t, 32>
using	i8x64 = simd<int8_t, 64>
using	u8x1 = simd<uint8_t, 1>
using	u8x2 = simd<uint8_t, 2>
using	u8x4 = simd<uint8_t, 4>
using	u8x8 = simd<uint8_t, 8>
using	u8x16 = simd<uint8_t, 16>
using	u8x32 = simd<uint8_t, 32>
using	u8x64 = simd<uint8_t, 64>
using	i16x1 = simd<int16_t, 1>
using	i16x2 = simd<int16_t, 2>
using	i16x4 = simd<int16_t, 4>
using	i16x8 = simd<int16_t, 8>
using	i16x16 = simd<int16_t, 16>
using	i16x32 = simd<int16_t, 32>
using	u16x1 = simd<uint16_t, 1>
using	u16x2 = simd<uint16_t, 2>
using	u16x4 = simd<uint16_t, 4>
using	u16x8 = simd<uint16_t, 8>
using	u16x16 = simd<uint16_t, 16>
using	u16x32 = simd<uint16_t, 32>
using	f16x4 = simd<half, 4>
using	i32x1 = simd<int32_t, 1>
using	i32x2 = simd<int32_t, 2>
using	i32x4 = simd<int32_t, 4>
using	i32x8 = simd<int32_t, 8>
using	i32x16 = simd<int32_t, 16>
using	u32x1 = simd<uint32_t, 1>
using	u32x2 = simd<uint32_t, 2>
using	u32x4 = simd<uint32_t, 4>
using	u32x8 = simd<uint32_t, 8>
using	u32x16 = simd<uint32_t, 16>
using	f32x1 = simd<float, 1>
using	f32x2 = simd<float, 2>
using	f32x4 = simd<float, 4>
using	f32x8 = simd<float, 8>
using	f32x16 = simd<float, 16>
using	i64x1 = simd<int64_t, 1>
using	i64x2 = simd<int64_t, 2>
using	i64x4 = simd<int64_t, 4>
using	i64x8 = simd<int64_t, 8>
using	u64x1 = simd<uint64_t, 1>
using	u64x2 = simd<uint64_t, 2>
using	u64x4 = simd<uint64_t, 4>
using	u64x8 = simd<uint64_t, 8>
using	f64x1 = simd<double, 1>
using	f64x2 = simd<double, 2>
using	f64x4 = simd<double, 4>
using	f64x8 = simd<double, 8>
using	unfair_mutex = unfair_mutex_impl<true>
template<typename T >
using	row_layout = row_column_layout<axis::x, T>
template<typename T >
using	column_layout = row_column_layout<axis::y, T>
template<typename T >
using	observer_decay_t = observer_decay<T>::type
using	margin_left = theme_variable<"margin-left", theme_length>
using	margin_right = theme_variable<"margin-right", theme_length>
using	margin_top = theme_variable<"margin-top", theme_length>
using	margin_bottom = theme_variable<"margin-bottom", theme_length>
using	margin = theme_variable<"margin", theme_length_quad>
using	dips_d = au::Quantity<Dips, double>
using	dips_f = au::Quantity<Dips, float>
using	dips_i = au::Quantity<Dips, int>
using	dips_per_em_d = au::Quantity<DipsPerEm, double>
using	dips_per_em_f = au::Quantity<DipsPerEm, float>
using	dips_per_em_i = au::Quantity<DipsPerEm, int>
using	dips_per_em_s = au::Quantity<DipsPerEm, short>
using	em_squares_d = au::Quantity<EmSquares, double>
using	em_squares_f = au::Quantity<EmSquares, float>
using	em_squares_i = au::Quantity<EmSquares, int>
template<typename T >
using	font_size_variant = std::variant<au::Quantity<PointsPerEm, T>, au::Quantity<PixelsPerEm, T>, au::Quantity<DipsPerEm, T>>
using	font_size_f = font_size_quantity<float>
using	font_size_s = font_size_quantity<short>
template<typename T >
using	length_variant
using	length_f = length_quantity<float>
using	length_s = length_quantity<short>
using	pixels_d = au::Quantity<Pixels, double>
using	pixels_f = au::Quantity<Pixels, float>
using	pixels_i = au::Quantity<Pixels, int>
using	pixels_per_em_d = au::Quantity<PixelsPerEm, double>
using	pixels_per_em_f = au::Quantity<PixelsPerEm, float>
using	pixels_per_em_i = au::Quantity<PixelsPerEm, int>
using	pixels_per_em_s = au::Quantity<PixelsPerEm, short>
using	pixels_per_inch_d = au::Quantity<PixelsPerInch, double>
using	pixels_per_inch_f = au::Quantity<PixelsPerInch, float>
using	pixels_per_inch_i = au::Quantity<PixelsPerInch, int>
using	points_d = au::Quantity<Points, double>
using	points_f = au::Quantity<Points, float>
using	points_i = au::Quantity<Points, int>
using	points_s = au::Quantity<Points, short>
using	points_per_em_d = au::Quantity<PointsPerEm, double>
using	points_per_em_f = au::Quantity<PointsPerEm, float>
using	points_per_em_i = au::Quantity<PointsPerEm, int>
using	points_per_em_s = au::Quantity<PointsPerEm, short>
using	big_uint64_buf_t = endian_buf_t<uint64_t, std::endian::big, 1>
using	big_uint32_buf_t = endian_buf_t<uint32_t, std::endian::big, 1>
using	big_uint16_buf_t = endian_buf_t<uint16_t, std::endian::big, 1>
using	big_int64_buf_t = endian_buf_t<int64_t, std::endian::big, 1>
using	big_int32_buf_t = endian_buf_t<int32_t, std::endian::big, 1>
using	big_int16_buf_t = endian_buf_t<int16_t, std::endian::big, 1>
using	little_uint64_buf_t = endian_buf_t<uint64_t, std::endian::little, 1>
using	little_uint32_buf_t = endian_buf_t<uint32_t, std::endian::little, 1>
using	little_uint16_buf_t = endian_buf_t<uint16_t, std::endian::little, 1>
using	little_int64_buf_t = endian_buf_t<int64_t, std::endian::little, 1>
using	little_int32_buf_t = endian_buf_t<int32_t, std::endian::little, 1>
using	little_int16_buf_t = endian_buf_t<int16_t, std::endian::little, 1>
using	native_uint64_buf_t = endian_buf_t<uint64_t, std::endian::native, 1>
using	native_uint32_buf_t = endian_buf_t<uint32_t, std::endian::native, 1>
using	native_uint16_buf_t = endian_buf_t<uint16_t, std::endian::native, 1>
using	native_int64_buf_t = endian_buf_t<int64_t, std::endian::native, 1>
using	native_int32_buf_t = endian_buf_t<int32_t, std::endian::native, 1>
using	native_int16_buf_t = endian_buf_t<int16_t, std::endian::native, 1>
using	big_uint64_buf_at = endian_buf_t<uint64_t, std::endian::big>
using	big_uint32_buf_at = endian_buf_t<uint32_t, std::endian::big>
using	big_uint16_buf_at = endian_buf_t<uint16_t, std::endian::big>
using	big_int64_buf_at = endian_buf_t<int64_t, std::endian::big>
using	big_int32_buf_at = endian_buf_t<int32_t, std::endian::big>
using	big_int16_buf_at = endian_buf_t<int16_t, std::endian::big>
using	little_uint64_buf_at = endian_buf_t<uint64_t, std::endian::little>
using	little_uint32_buf_at = endian_buf_t<uint32_t, std::endian::little>
using	little_uint16_buf_at = endian_buf_t<uint16_t, std::endian::little>
using	little_int64_buf_at = endian_buf_t<int64_t, std::endian::little>
using	little_int32_buf_at = endian_buf_t<int32_t, std::endian::little>
using	little_int16_buf_at = endian_buf_t<int16_t, std::endian::little>
using	native_uint64_buf_at = endian_buf_t<uint64_t, std::endian::native>
using	native_uint32_buf_at = endian_buf_t<uint32_t, std::endian::native>
using	native_uint16_buf_at = endian_buf_t<uint16_t, std::endian::native>
using	native_int64_buf_at = endian_buf_t<int64_t, std::endian::native>
using	native_int32_buf_at = endian_buf_t<int32_t, std::endian::native>
using	native_int16_buf_at = endian_buf_t<int16_t, std::endian::native>
template<typename T >
using	enum_metadata_name_t = enum_metadata_name<T>::type
using	ssize_t = std::ptrdiff_t
	Signed size/index into an array.
template<typename T >
using	make_string_t = typename make_string<T>::type
	type-trait to convert a character to a string type.
template<typename T >
using	make_string_view_t = typename make_string_view<T>::type
	type-trait to convert a character to a string_view type.
template<typename T , typename U >
using	make_promote_t = typename make_promote<T, U>::type
template<typename T >
using	make_intmax_t = typename make_intmax<T>::type
template<std::size_t N>
using	make_intxx_t = typename make_intxx<N>::type
template<std::size_t N>
using	make_uintxx_t = typename make_uintxx<N>::type
template<std::size_t N>
using	make_floatxx_t = typename make_floatxx<N>::type
template<typename T >
using	remove_cvptr_t = remove_cvptr<T>::type
template<typename To , typename From >
using	copy_cv_t = typename copy_cv<To, From>::type
	Type-trait to copy const volatile qualifiers from one type to another.
template<typename First , typename Second >
using	use_first_t = use_first<First, Second>
template<typename Context >
using	forward_copy_or_ref_t = forward_copy_or_ref<Context>::type
template<typename T >
using	variant_decay_t = variant_decay<T>::type
template<typename FuncType , typename... ArgTypes>
using	default_async_delegate_result_type
using	async_with_label_widget = with_label_widget<async_widget>
using	async_menu_button_widget = menu_button_widget<async_widget>
using	checkbox_with_label_widget = with_label_widget<checkbox_widget>
using	checkbox_menu_button_widget = menu_button_widget<checkbox_widget>
using	radio_with_label_widget = with_label_widget<radio_widget>
using	radio_menu_button_widget = menu_button_widget<radio_widget>
using	vertical_scroll_widget = scroll_widget<axis::vertical>
	Vertical scroll widget.
using	horizontal_scroll_widget = scroll_widget<axis::horizontal>
	Horizontal scroll widget.
using	toggle_with_label_widget = with_label_widget<toggle_widget>

Enumerations
enum class	cpu_feature : uint8_t {   cmov , cx8 , fpu , fxsr ,   mmx , osfxsr , sce , sse ,   sse2 , cx16 , lahf , popcnt ,   sse3 , sse4_1 , sse4_2 , ssse3 ,   avx , avx2 , bmi1 , bmi2 ,   f16c , fma , lzcnt , movbe ,   osxsave , avx512f , avx512bw , avx512cd ,   avx512dq , avx512vl , avx512pf , avx512er ,   sha , aes , pclmul , rdrnd ,   rdseed }
	Possible features of x86 CPUs. More...
enum class	cpu_feature_mask : uint64_t {   none = 0 , cmov = 1 << cpu_feature::cmov , cx8 = 1 << cpu_feature::cx8 , fpu = 1 << cpu_feature::fpu ,   fxsr = 1 << cpu_feature::fxsr , mmx = 1 << cpu_feature::mmx , osfxsr = 1 << cpu_feature::osfxsr , sce = 1 << cpu_feature::sce ,   sse = 1 << cpu_feature::sse , sse2 = 1 << cpu_feature::sse2 , x86_64_v1 = cmov | cx8 | fpu | fxsr | mmx | osfxsr | sce | sse | sse2 , cx16 = 1 << cpu_feature::cx16 ,   lahf = 1 << cpu_feature::lahf , popcnt = 1 << cpu_feature::popcnt , sse3 = 1 << cpu_feature::sse3 , sse4_1 = 1 << cpu_feature::sse4_1 ,   sse4_2 = 1 << cpu_feature::sse4_2 , ssse3 = 1 << cpu_feature::ssse3 , x86_64_v2 = x86_64_v1 | cx16 | lahf | popcnt | sse3 | sse4_1 | sse4_2 | ssse3 , avx = 1 << cpu_feature::avx ,   avx2 = 1 << cpu_feature::avx2 , bmi1 = 1 << cpu_feature::bmi1 , bmi2 = 1 << cpu_feature::bmi2 , f16c = 1 << cpu_feature::f16c ,   fma = 1 << cpu_feature::fma , lzcnt = 1 << cpu_feature::lzcnt , movbe = 1 << cpu_feature::movbe , osxsave = 1 << cpu_feature::osxsave ,   x86_64_v3 = x86_64_v2 | avx | avx2 | bmi1 | bmi2 | f16c | fma | lzcnt | movbe | osxsave , avx512f = 1 << cpu_feature::avx512f , avx512bw = 1 << cpu_feature::avx512bw , avx512cd = 1 << cpu_feature::avx512cd ,   avx512dq = 1 << cpu_feature::avx512dq , avx512vl = 1 << cpu_feature::avx512vl , x86_64_v4 = x86_64_v3 | avx512f | avx512bw | avx512cd | avx512dq | avx512vl , avx512pf = 1 << cpu_feature::avx512pf ,   avx512er = 1 << cpu_feature::avx512er , sha = 1 << cpu_feature::sha , aes = 1 << cpu_feature::aes , pclmul = 1 << cpu_feature::pclmul ,   rdrnd = 1 << cpu_feature::rdrnd , rdseed = 1 << cpu_feature::rdseed }
	A mask of features. More...
enum class	audio_block_state { normal , silent , corrupt }
enum class	audio_device_state {   uninitialized , active , disabled , not_present ,   unplugged }
enum class	audio_direction : unsigned char { none = 0b00 , input = 0b01 , output = 0b10 , bidirectional = 0b11 }
enum class	speaker_mapping : uint32_t {   none = 0 , front_left = 0x0'0001 , front_right = 0x0'0002 , front_center = 0x0'0004 ,   low_frequency = 0x0'0008 , back_left = 0x0'0010 , back_right = 0x0'0020 , front_left_of_center = 0x0'0040 ,   front_right_of_center = 0x0'0080 , back_center = 0x0'0100 , side_left = 0x0'0200 , side_right = 0x0'0400 ,   top_center = 0x0'0800 , top_front_left = 0x0'1000 , top_front_center = 0x0'2000 , top_front_right = 0x0'4000 ,   top_back_left = 0x0'8000 , top_back_center = 0x1'0000 , top_back_right = 0x2'0000 , mono_1_0 = front_center ,   stereo_2_0 = front_left | front_right , stereo_2_1 = stereo_2_0 | low_frequency , stereo_3_0 = stereo_2_0 | front_center , stereo_3_1 = stereo_3_0 | low_frequency ,   quad_4_0 = stereo_2_0 | back_left | back_right , quad_side_4_0 = stereo_2_0 | side_left | side_right , hexagonal_6_0 = quad_4_0 | front_center | back_center , hexagonal_6_1 = hexagonal_6_0 | low_frequency ,   octagonal_8_0 = hexagonal_6_0 | side_left | side_right , surround_3_0 = stereo_2_0 | back_center , surround_4_0 = surround_3_0 | front_center , surround_4_1 = surround_4_0 | low_frequency ,   surround_5_0 = quad_4_0 | front_center , surround_5_1 = surround_5_0 | low_frequency , surround_7_0 = surround_5_0 | side_left | side_right , surround_7_1 = surround_7_0 | low_frequency ,   surround_9_0 = surround_7_0 | top_front_left | top_front_right , surround_9_1 = surround_9_0 | low_frequency , surround_11_0 = surround_9_0 | front_left_of_center | front_right_of_center , surround_11_1 = surround_11_0 | low_frequency ,   surround_side_5_0 = quad_side_4_0 | front_center , surround_side_5_1 = surround_side_5_0 | low_frequency , surround_side_6_0 = surround_side_5_0 | back_center , surround_side_6_1 = surround_side_6_0 | low_frequency ,   surround_side_7_0 = surround_side_5_0 | front_left_of_center | front_right_of_center , surround_side_7_1 = surround_side_7_0 | low_frequency , surround_wide_6_0 = surround_4_0 | front_left_of_center | front_right_of_center , surround_wide_6_1 = surround_wide_6_0 | low_frequency ,   surround_wide_7_0 = surround_5_0 | front_left_of_center | front_right_of_center , surround_wide_7_1 = surround_wide_7_0 | low_frequency , surround_atmos_5_1_4 = surround_5_1 | top_front_left | top_front_right | top_back_left | top_back_right , surround_atmos_7_1_4 = surround_7_1 | top_front_left | top_front_right | top_back_left | top_back_right }
enum class	surround_mode : uint64_t {   none = 0 , mono_1_0 = uint64_t{1} << 0 , stereo_2_0 = uint64_t{1} << 1 , stereo_2_1 = uint64_t{1} << 2 ,   stereo_3_0 = uint64_t{1} << 3 , stereo_3_1 = uint64_t{1} << 4 , quad_4_0 = uint64_t{1} << 5 , quad_side_4_0 = uint64_t{1} << 6 ,   hexagonal_6_0 = uint64_t{1} << 7 , hexagonal_6_1 = uint64_t{1} << 8 , octagonal_8_0 = uint64_t{1} << 9 , surround_3_0 = uint64_t{1} << 10 ,   surround_4_0 = uint64_t{1} << 11 , surround_4_1 = uint64_t{1} << 12 , surround_5_0 = uint64_t{1} << 13 , surround_5_1 = uint64_t{1} << 14 ,   surround_7_0 = uint64_t{1} << 15 , surround_7_1 = uint64_t{1} << 16 , surround_9_0 = uint64_t{1} << 17 , surround_9_1 = uint64_t{1} << 18 ,   surround_11_0 = uint64_t{1} << 19 , surround_11_1 = uint64_t{1} << 20 , surround_side_5_0 = uint64_t{1} << 21 , surround_side_5_1 = uint64_t{1} << 22 ,   surround_side_6_0 = uint64_t{1} << 23 , surround_side_6_1 = uint64_t{1} << 24 , surround_side_7_0 = uint64_t{1} << 25 , surround_side_7_1 = uint64_t{1} << 26 ,   surround_wide_6_0 = uint64_t{1} << 27 , surround_wide_6_1 = uint64_t{1} << 28 , surround_wide_7_0 = uint64_t{1} << 29 , surround_wide_7_1 = uint64_t{1} << 30 ,   surround_atmos_5_1_4 = uint64_t{1} << 31 , surround_atmos_7_1_4 = uint64_t{1} << 32 }
enum class	semantic_color : unsigned char {   blue , green , indigo , orange ,   pink , purple , red , teal ,   yellow , gray , gray2 , gray3 ,   gray4 , gray5 , gray6 , foreground ,   border , fill , accent , text_select ,   primary_cursor , secondary_cursor }
	Semantic colors. More...
enum class	global_state_type : uint64_t {   log_debug = 0x01 , log_info = 0x02 , log_statistics = 0x04 , log_trace = 0x08 ,   log_audit = 0x10 , log_warning = 0x20 , log_error = 0x40 , log_fatal = 0x80 ,   log_mask = log_debug | log_info | log_statistics | log_trace | log_audit | log_warning | log_error | log_fatal , log_level_default = log_audit | log_error | log_fatal , log_level_fatal = log_audit | log_fatal , log_level_error = log_trace | log_error | log_level_fatal ,   log_level_warning = log_warning | log_level_error , log_level_info = log_info | log_statistics | log_level_warning , log_level_debug = log_debug | log_level_info , log_is_running = 0x1'00 ,   time_stamp_utc_is_running = 0x2'00 , system_is_running = 0x1'000000'00 , system_is_shutting_down = 0x2'000000'00 , system_mask = system_is_running | system_is_shutting_down }
	The flag-type used for global state. More...
enum class	cancel_features_type { none = 0 , stop = 1 , progress = 2 , stop_and_progress = 3 }
	Features of an invocable. More...
enum class	access_mode {   access_mode::read = 0x1 , access_mode::write = 0x2 , access_mode::rename = 0x4 , access_mode::read_lock = 0x10 ,   access_mode::write_lock = 0x20 , access_mode::open = 0x100 , access_mode::create = 0x200 , access_mode::truncate = 0x400 ,   access_mode::random = 0x1000 , access_mode::sequential = 0x2000 , access_mode::no_reuse = 0x4000 , access_mode::write_through = 0x8000 ,   access_mode::create_directories = 0x10000 , access_mode::open_for_read = open | read , access_mode::open_for_read_and_write = open | read | write , truncate_or_create_for_write = create_directories | open | create | truncate | write }
	The mode in which way to open a file. More...
enum class	seek_whence { seek_whence::begin , seek_whence::current , seek_whence::end }
	The position in the file to seek from. More...
enum class	font_style { normal = 0 , italic = 1 , oblique = 1 }
	The different styles a font-family comes with. More...
enum class	vertical_alignment : uint8_t { vertical_alignment::none = 0 , vertical_alignment::top = 1 , vertical_alignment::middle = 2 , vertical_alignment::bottom = 3 }
	Vertical alignment. More...
enum class	horizontal_alignment : uint8_t {   horizontal_alignment::none = 0 , horizontal_alignment::flush = 1 , horizontal_alignment::left = 2 , horizontal_alignment::center = 3 ,   horizontal_alignment::justified = 4 , horizontal_alignment::right = 5 }
	Horizontal alignment. More...
enum class	axis : unsigned char {   none = 0 , x = 1 , y = 2 , z = 4 ,   both = x | y , all = x | y | z , horizontal = x , vertical = y }
	An enumeration of the 3 axis for 3D geometry. More...
enum class	line_end_cap { line_end_cap::flat , line_end_cap::round }
	The way two lines should be joined. More...
enum class	line_join_style { line_join_style::none , line_join_style::bevel , line_join_style::miter , line_join_style::round }
	The way two lines should be joined. More...
enum class	border_side { on , inside , outside }
	The side where the border is drawn. More...
enum class	gui_event_type {   none , keyboard_down , keyboard_up , keyboard_grapheme ,   keyboard_partial_grapheme , keyboard_enter , keyboard_exit , mouse_move ,   mouse_drag , mouse_down , mouse_up , mouse_wheel ,   mouse_enter , mouse_exit , mouse_exit_window , gui_event_type::window_redraw ,   gui_event_type::window_relayout , gui_event_type::window_reconstrain , gui_event_type::window_resize , gui_event_type::window_minimize ,   gui_event_type::window_maximize , gui_event_type::window_normalize , gui_event_type::window_close , gui_event_type::window_open_sysmenu ,   gui_event_type::window_set_keyboard_target , gui_event_type::window_set_clipboard , gui_event_type::window_activate , gui_event_type::window_deactivate ,   text_cursor_left_char , text_cursor_right_char , text_cursor_down_char , text_cursor_up_char ,   text_cursor_left_word , text_cursor_right_word , text_cursor_begin_line , text_cursor_end_line ,   text_cursor_begin_sentence , text_cursor_end_sentence , text_cursor_begin_document , text_cursor_end_document ,   text_select_left_char , text_select_right_char , text_select_down_char , text_select_up_char ,   text_select_word , text_select_left_word , text_select_right_word , text_select_begin_line ,   text_select_end_line , text_select_begin_sentence , text_select_end_sentence , text_select_document ,   text_select_begin_document , text_select_end_document , text_delete_char_prev , text_delete_char_next ,   text_delete_word_prev , text_delete_word_next , text_swap_chars , text_edit_paste ,   text_edit_copy , text_edit_cut , text_undo , text_redo ,   text_insert_line , text_insert_line_up , text_insert_line_down , text_mode_insert ,   gui_widget_next , gui_widget_prev , gui_menu_next , gui_menu_prev ,   gui_toolbar_open , gui_toolbar_next , gui_toolbar_prev , gui_activate ,   gui_activate_stay , gui_activate_next , gui_cancel }
	GUI event type. More...
enum class	gui_event_variant {   gui_event_variant::other , gui_event_variant::mouse , gui_event_variant::keyboard , gui_event_variant::keyboard_target ,   gui_event_variant::grapheme , gui_event_variant::rectangle , gui_event_variant::clipboard_data }
	A granular gui event type. More...
enum class	widget_id : uint32_t
enum class	transform_command { level , increment , menu_item , overlay }
enum class	widget_mode {   widget_mode::collapse = 0 , widget_mode::invisible = 1 , widget_mode::disabled = 2 , widget_mode::display = 3 ,   widget_mode::select = 4 , widget_mode::partial = 5 , widget_mode::enabled = 6 }
	The mode that the widget is operating at. More...
enum class	widget_value { off = 0 , on = 1 , other = 2 }
enum class	widget_phase { inactive = 0 , normal = 1 , hover = 2 , pressed = 3 }
enum class	unicode_bidi_class : uint8_t {   ON = 0 , L = 1 , R = 2 , BN = 3 ,   S = 4 , B = 5 , WS = 6 , ET = 7 ,   ES = 8 , CS = 9 , EN = 10 , NSM = 11 ,   AN = 12 , AL = 13 , LRE = 14 , RLE = 15 ,   PDF = 16 , LRO = 17 , RLO = 18 , LRI = 19 ,   RLI = 20 , FSI = 21 , PDI = 22 }
	Bidirectional class Unicode Standard Annex #9: https://unicode.org/reports/tr9/. More...
enum class	unicode_bidi_paired_bracket_type : uint8_t { n = 0 , o = 1 , c = 2 }
enum class	unicode_decomposition_type : uint8_t {   canonical = 0 , noBreak = 1 , compat = 2 , super = 3 ,   fraction = 4 , sub = 5 , font = 6 , circle = 7 ,   wide = 8 , vertical = 9 , square = 10 , isolated = 11 ,   _final = 12 , initial = 13 , medial = 14 , small = 15 ,   narrow = 16 }
	The decomposition type determines if a code-point should be decomposed canonically or for a compatibility. More...
enum class	unicode_east_asian_width : uint8_t {   N = 0 , Na = 1 , A = 2 , W = 3 ,   H = 4 , F = 5 }
enum class	unicode_general_category : uint8_t {   Cn = 0 , Cc = 1 , Cf = 2 , Co = 3 ,   Cs = 4 , Ll = 5 , Lm = 6 , Lo = 7 ,   Lt = 8 , Lu = 9 , Mc = 10 , Me = 11 ,   Mn = 12 , Nd = 13 , Nl = 14 , No = 15 ,   Pc = 16 , Pd = 17 , Pe = 18 , Pf = 19 ,   Pi = 20 , Po = 21 , Ps = 22 , Sc = 23 ,   Sk = 24 , Sm = 25 , So = 26 , Zl = 27 ,   Zp = 28 , Zs = 29 }
enum class	unicode_grapheme_cluster_break : uint8_t {   Other = 0 , Control = 1 , LF = 2 , CR = 3 ,   Extended_Pictographic = 4 , Extend = 5 , Prepend = 6 , SpacingMark = 7 ,   L = 8 , V = 9 , T = 10 , ZWJ = 11 ,   LV = 12 , LVT = 13 , Regional_Indicator = 14 }
enum class	unicode_lexical_class : uint8_t {   other = 0 , id_continue = 1 , id_start = 2 , syntax = 3 ,   white_space = 4 }
enum class	unicode_line_break_class : uint8_t {   XX = 0 , CM = 1 , BA = 2 , LF = 3 ,   BK = 4 , CR = 5 , SP = 6 , EX = 7 ,   QU = 8 , AL = 9 , PR = 10 , PO = 11 ,   OP = 12 , CP = 13 , IS = 14 , HY = 15 ,   SY = 16 , NU = 17 , CL = 18 , NL = 19 ,   GL = 20 , AI = 21 , BB = 22 , HL = 23 ,   SA = 24 , JL = 25 , JV = 26 , JT = 27 ,   NS = 28 , ZW = 29 , ZWJ = 30 , B2 = 31 ,   IN = 32 , WJ = 33 , ID = 34 , EB = 35 ,   CJ = 36 , H2 = 37 , H3 = 38 , SG = 39 ,   CB = 40 , RI = 41 , EM = 42 }
	Unicode line break class. More...
enum class	unicode_script : uint16_t {   Adlam = 166 , Ahom = 338 , Anatolian_Hieroglyphs = 80 , Arabic = 160 ,   Armenian = 230 , Avestan = 134 , Balinese = 360 , Bamum = 435 ,   Bassa_Vah = 259 , Batak = 365 , Bengali = 325 , Bhaiksuki = 334 ,   Bopomofo = 285 , Brahmi = 300 , Braille = 570 , Buginese = 367 ,   Buhid = 372 , Canadian_Aboriginal = 440 , Carian = 201 , Caucasian_Albanian = 239 ,   Chakma = 349 , Cham = 358 , Cherokee = 445 , Chorasmian = 109 ,   Common = 994 , Coptic = 204 , Cuneiform = 20 , Cypriot = 403 ,   Cypro_Minoan = 402 , Cyrillic = 220 , Deseret = 250 , Devanagari = 315 ,   Dives_Akuru = 342 , Dogra = 328 , Duployan = 755 , Egyptian_Hieroglyphs = 50 ,   Elbasan = 226 , Elymaic = 128 , Ethiopic = 430 , Georgian = 240 ,   Glagolitic = 225 , Gothic = 206 , Grantha = 343 , Greek = 200 ,   Gujarati = 320 , Gunjala_Gondi = 312 , Gurmukhi = 310 , Han = 500 ,   Hangul = 286 , Hanifi_Rohingya = 167 , Hanunoo = 371 , Hatran = 127 ,   Hebrew = 125 , Hiragana = 410 , Imperial_Aramaic = 124 , Inherited = 994 ,   Inscriptional_Pahlavi = 131 , Inscriptional_Parthian = 130 , Javanese = 361 , Kaithi = 317 ,   Kannada = 345 , Katakana = 411 , Kawi = 368 , Kayah_Li = 357 ,   Kharoshthi = 305 , Khitan_Small_Script = 288 , Khmer = 355 , Khojki = 322 ,   Khudawadi = 318 , Lao = 356 , Latin = 215 , Lepcha = 335 ,   Limbu = 336 , Linear_A = 400 , Linear_B = 401 , Lisu = 399 ,   Lycian = 202 , Lydian = 116 , Mahajani = 314 , Makasar = 366 ,   Malayalam = 347 , Mandaic = 140 , Manichaean = 139 , Marchen = 332 ,   Masaram_Gondi = 313 , Medefaidrin = 265 , Meetei_Mayek = 337 , Mende_Kikakui = 438 ,   Meroitic_Cursive = 101 , Meroitic_Hieroglyphs = 100 , Miao = 282 , Modi = 324 ,   Mongolian = 145 , Mro = 264 , Multani = 323 , Myanmar = 350 ,   Nabataean = 159 , Nag_Mundari = 295 , Nandinagari = 311 , New_Tai_Lue = 354 ,   Newa = 333 , Nko = 165 , Nushu = 499 , Nyiakeng_Puachue_Hmong = 451 ,   Ogham = 212 , Ol_Chiki = 261 , Old_Hungarian = 176 , Old_Italic = 210 ,   Old_North_Arabian = 106 , Old_Permic = 227 , Old_Persian = 30 , Old_Sogdian = 142 ,   Old_South_Arabian = 105 , Old_Turkic = 175 , Old_Uyghur = 143 , Oriya = 327 ,   Osage = 219 , Osmanya = 260 , Pahawh_Hmong = 450 , Palmyrene = 126 ,   Pau_Cin_Hau = 263 , Phags_Pa = 331 , Phoenician = 115 , Psalter_Pahlavi = 132 ,   Rejang = 363 , Runic = 211 , Samaritan = 123 , Saurashtra = 344 ,   Sharada = 319 , Shavian = 281 , Siddham = 302 , SignWriting = 95 ,   Sinhala = 348 , Sogdian = 141 , Sora_Sompeng = 398 , Soyombo = 329 ,   Sundanese = 362 , Syloti_Nagri = 316 , Syriac = 135 , Tagalog = 370 ,   Tagbanwa = 373 , Tai_Le = 353 , Tai_Tham = 351 , Tai_Viet = 359 ,   Takri = 321 , Tamil = 346 , Tangsa = 520 , Tangut = 520 ,   Telugu = 340 , Thaana = 170 , Thai = 352 , Tibetan = 330 ,   Tifinagh = 120 , Tirhuta = 326 , Toto = 294 , Ugaritic = 40 ,   Vai = 470 , Vithkuqi = 228 , Wancho = 283 , Warang_Citi = 262 ,   Yezidi = 192 , Yi = 460 , Zanabazar_Square = 339 , Zzzz = 0 }
enum class	unicode_sentence_break_property : uint8_t {   Other = 0 , Sp = 1 , LF = 2 , CR = 3 ,   STerm = 4 , Close = 5 , SContinue = 6 , ATerm = 7 ,   Numeric = 8 , Upper = 9 , Lower = 10 , Sep = 11 ,   Format = 12 , OLetter = 13 , Extend = 14 }
enum class	unicode_word_break_property : uint8_t {   Other = 0 , LF = 1 , Newline = 2 , CR = 3 ,   WSegSpace = 4 , Double_Quote = 5 , Single_Quote = 6 , MidNum = 7 ,   MidNumLet = 8 , Numeric = 9 , MidLetter = 10 , ALetter = 11 ,   ExtendNumLet = 12 , Format = 13 , Extend = 14 , Hebrew_Letter = 15 ,   ZWJ = 16 , Katakana = 17 , Regional_Indicator = 18 }
enum class	plurality_value : uint8_t {   zero = 0 , one = 1 , two = 2 , few = 3 ,   many = 4 , other = 5 }
	The plurality value of a cardinal or ordinal number. More...
enum class	plurality_mask : uint8_t {   zero = 1 << std::to_underlying(plurality_value::zero) , one = 1 << std::to_underlying(plurality_value::one) , two = 1 << std::to_underlying(plurality_value::two) , few = 1 << std::to_underlying(plurality_value::few) ,   many = 1 << std::to_underlying(plurality_value::many) , other = 1 << std::to_underlying(plurality_value::other) }
	A mask of plurality values that this language supports. More...
enum class	device_type : unsigned char {   desktop = 120 , server = 121 , watch = 160 , phone = 161 ,   tablet = 162 , game_console = 208 , television = 209 }
	The device type this application is running on. More...
enum class	dialog_button {   no , yes , cancel , ok ,   retry , _continue }
enum class	dialog_button_mask : uint64_t {   no = 1 << dialog_button::no , yes = 1 << dialog_button::yes , cancel = 1 << dialog_button::cancel , ok = 1 << dialog_button::ok ,   retry = 1 << dialog_button::retry , _continue = 1 << dialog_button::_continue , cancel_retry_continue = cancel | retry | _continue , yes_no = yes | no ,   ok_cancel = ok | cancel , retry_cancel = retry | cancel , yes_no_cancel = yes | no | cancel }
enum class	policy { unspecified , low_power , high_performance }
	The performance policy to use. More...
enum class	hresult_error : int32_t { ok = S_OK , unspecified_error = E_FAIL , invalid_argument = E_INVALIDARG }
enum class	win32_error : uint32_t {   success = ERROR_SUCCESS , file_not_found = ERROR_FILE_NOT_FOUND , more_data = ERROR_MORE_DATA , invalid_data = ERROR_INVALID_DATA ,   insufficient_buffer = ERROR_INSUFFICIENT_BUFFER , status_pending = STATUS_PENDING , not_supported = ERROR_NOT_SUPPORTED , invalid_parameter = ERROR_INVALID_PARAMETER }

Functions
constexpr auto	cpu_feature_metadata_init () noexcept
template<std::integral Lhs>
constexpr unsigned long long	operator<< (Lhs const &lhs, cpu_feature const &rhs)
constexpr cpu_feature_mask	operator| (cpu_feature_mask const &lhs, cpu_feature_mask const &rhs) noexcept
constexpr cpu_feature_mask	operator& (cpu_feature_mask const &lhs, cpu_feature_mask const &rhs) noexcept
constexpr cpu_feature_mask	operator- (cpu_feature_mask const &lhs, cpu_feature_mask const &rhs) noexcept
constexpr bool	to_bool (cpu_feature_mask const &rhs) noexcept
constexpr cpu_feature_mask	operator| (cpu_feature_mask const &lhs, cpu_feature const &rhs) noexcept
constexpr cpu_feature_mask	operator& (cpu_feature_mask const &lhs, cpu_feature const &rhs) noexcept
constexpr cpu_feature_mask &	operator|= (cpu_feature_mask &lhs, cpu_feature const &rhs) noexcept
cpu_id_result	cpu_id (uint32_t leaf_id, uint32_t index=0) noexcept
	A generic x86 cpu-id instruction.
cpu_feature_mask	cpu_features () noexcept
	Get a list of features of the current CPU.
bool	has_cmov () noexcept
	This CPU has the CMOV (Conditional Move) instruction.
bool	has_cx8 () noexcept
	This CPU has the CMPXCG8 (Compare and exchange 8 bytes) instruction.
bool	has_fpu () noexcept
	This CPU has a floating-point co-processor.
bool	has_fxsr () noexcept
	This CPU has the fxsave instruction.
bool	has_osfxsr () noexcept
	This operating system uses the FXSAVE instruction.
bool	has_sce () noexcept
	This operating system uses the SYSCALL instruction.
bool	has_mmx () noexcept
	This CPU has the MMX instruction set.
bool	has_sse () noexcept
	This CPU has the SSE instruction set.
bool	has_sse2 () noexcept
	This CPU has the SSE2 instruction set.
bool	has_x86_64_v1 () noexcept
	This CPU has all the features for x86-64-v1 microarchitecture level.
bool	has_cx16 () noexcept
	This CPU has the CMPXCG16 (Compare and exchange 16 bytes) instruction.
bool	has_lahf () noexcept
	This CPU has the LAHF and SAHF instructions.
bool	has_popcnt () noexcept
	This CPU has the POPCNT instructions.
bool	has_sse3 () noexcept
	This CPU has the SSE3 instruction set.
bool	has_ssse3 () noexcept
	This CPU has the SSSE3 instruction set.
bool	has_sse4_1 () noexcept
	This CPU has the SSE4.1 instruction set.
bool	has_sse4_2 () noexcept
	This CPU has the SSE4.2 instruction set.
bool	has_x86_64_v2 () noexcept
	This CPU has all the features for x86-64-v2 microarchitecture level.
bool	has_f16c () noexcept
	This CPU has float-16 conversion instructions.
bool	has_fma () noexcept
	This CPU has fused-multiply-accumulate instructions.
bool	has_bmi1 () noexcept
	This CPU has the BMI1 instruction set.
bool	has_bmi2 () noexcept
	This CPU has the BMI2 instruction set.
bool	has_lzcnt () noexcept
	This CPU has the LZCNT instruction.
bool	has_movbe () noexcept
	This CPU has the MOVBE (Move Big Endian) instruction.
bool	has_osxsave () noexcept
	This operating system uses the SXSAVE instruction.
bool	has_avx () noexcept
	This CPU has the AVX instruction set.
bool	has_avx2 () noexcept
	This CPU has the AVX2 instruction set.
bool	has_x86_64_v3 () noexcept
	This CPU has all the features for x86-64-v3 microarchitecture level.
bool	has_avx512f () noexcept
	This CPU has the AVX512F instruction set.
bool	has_avx512bw () noexcept
	This CPU has the AVX512BW instruction set.
bool	has_avx512cd () noexcept
	This CPU has the AVX512CD instruction set.
bool	has_avx512dq () noexcept
	This CPU has the AVX512DQ instruction set.
bool	has_avx512vl () noexcept
	This CPU has the AVX512VL instruction set.
bool	has_x86_64_v4 () noexcept
	This CPU has all the features for x86-64-v4 microarchitecture level.
bool	has_avx512pf () noexcept
	This CPU has the AVX512PF instruction set.
bool	has_avx512er () noexcept
	This CPU has the AVX512ER instruction set.
bool	has_sha () noexcept
	This CPU has the SHA cryptographical secure hash instruction set.
bool	has_aes () noexcept
	This CPU has the AES-NI block cypher instruction set.
bool	has_pclmul () noexcept
	This CPU has the PCLMUL carry-less multiply instruction.
bool	has_rdrnd () noexcept
	This CPU has the RDRAND on-chip random number generator instruction.
bool	has_rdseed () noexcept
	This CPU has the RDSEED access to the conditioned on-chip entropy.
constexpr std::array< uint16_t, 4 >	float_to_half_generic (std::array< float, 4 > a) noexcept
constexpr uint16_t	float_to_half (float v) noexcept
constexpr std::array< uint16_t, 4 >	float_to_half (std::array< float, 4 > v) noexcept
constexpr float	half_to_float_generic (uint16_t u16) noexcept
	Convert half to float.
constexpr std::array< float, 4 >	half_to_float (std::array< uint16_t, 4 > v) noexcept
constexpr float	half_to_float (uint16_t v) noexcept
template<typename Container >
constexpr auto	recursive_iterator_begin (Container &rhs) noexcept
	Get a recursive iterator from the begin of a recursive container.
template<typename Container >
constexpr auto	recursive_iterator_end (Container &rhs) noexcept
	Get a recursive iterator from one beyond the end of a recursive container.
template<typename Container >
constexpr auto	recursive_iterator_begin (Container const &rhs) noexcept
	Get a recursive iterator from the begin of a recursive container.
template<typename Container >
constexpr auto	recursive_iterator_end (Container const &rhs) noexcept
	Get a recursive iterator from one beyond the end of a recursive container.
hi_export constexpr std::string_view	to_string (audio_device_state const &rhs) noexcept
hi_export constexpr audio_direction	operator& (audio_direction const &lhs, audio_direction const &rhs) noexcept
hi_export constexpr audio_direction	operator| (audio_direction const &lhs, audio_direction const &rhs) noexcept
hi_export constexpr bool	to_bool (audio_direction const &rhs) noexcept
hi_export bool	win32_use_extensible (audio_stream_format x) noexcept
hi_export WAVEFORMATEXTENSIBLE	audio_stream_format_to_win32 (audio_stream_format stream_format, bool extensible) noexcept
hi_export audio_stream_format	audio_stream_format_from_win32 (WAVEFORMATEXTENSIBLE const &wave_format)
hi_export audio_stream_format	audio_stream_format_from_win32 (WAVEFORMATEX const &wave_format)
constexpr bool	match_audio_device (audio_device const &device) noexcept
template<audio_device_filter FirstFilter, audio_device_filter... Filters>
bool	match_audio_device (audio_device const &device, FirstFilter &&first_filter, Filters &&...filters) noexcept
template<audio_device_filter... Filters>
generator< audio_device & >	audio_devices (Filters &&...filters) noexcept
	Get audio devices matching the filter arguments.
hi_export constexpr bool	to_bool (speaker_mapping const &rhs) noexcept
hi_export constexpr unsigned int	popcount (speaker_mapping const &rhs) noexcept
hi_export constexpr speaker_mapping	operator| (speaker_mapping const &lhs, speaker_mapping const &rhs) noexcept
hi_export constexpr speaker_mapping	operator& (speaker_mapping const &lhs, speaker_mapping const &rhs) noexcept
hi_export constexpr speaker_mapping &	operator|= (speaker_mapping &lhs, speaker_mapping const &rhs) noexcept
hi_export constexpr speaker_mapping &	operator&= (speaker_mapping &lhs, speaker_mapping const &rhs) noexcept
hi_export std::string	to_string (speaker_mapping rhs) noexcept
hi_export speaker_mapping	speaker_mapping_from_win32 (DWORD from)
hi_export DWORD	speaker_mapping_to_win32 (speaker_mapping from) noexcept
hi_export constexpr surround_mode	operator& (surround_mode const &lhs, surround_mode const &rhs) noexcept
hi_export constexpr surround_mode	operator| (surround_mode const &lhs, surround_mode const &rhs) noexcept
hi_export constexpr surround_mode &	operator|= (surround_mode &lhs, surround_mode const &rhs) noexcept
hi_export constexpr bool	to_bool (surround_mode const &rhs) noexcept
hi_export constexpr speaker_mapping	to_speaker_mapping (surround_mode const &rhs) noexcept
hi_export generator< surround_mode >	enumerate_surround_modes () noexcept
hi_export constexpr std::string_view	to_string_view_one (surround_mode const &mode) noexcept
hi_export constexpr std::string	to_string (surround_mode const &mask) noexcept
char32_t	random_char () noexcept
constexpr std::u32string	to_u32string (std::u32string_view rhs) noexcept
	Identity conversion from UTF-32 to UTF-32.
constexpr std::u32string	to_u32string (std::u16string_view rhs) noexcept
	Conversion from UTF-16 to UTF-32.
constexpr std::u32string	to_u32string (std::u8string_view rhs) noexcept
	Conversion from UTF-8 to UTF-32.
constexpr std::u32string	to_u32string (std::wstring_view rhs) noexcept
	Conversion from wide-string (UTF-16/32) to UTF-32.
constexpr std::u32string	to_u32string (std::string_view rhs) noexcept
	Conversion from UTF-8 to UTF-32.
constexpr std::u16string	to_u16string (std::u32string_view rhs) noexcept
	Conversion from UTF-32 to UTF-16.
constexpr std::u16string	to_u16string (std::u16string_view rhs) noexcept
	Identity conversion from UTF-16 to UTF-16.
constexpr std::u16string	to_u16string (std::u8string_view rhs) noexcept
	Conversion from UTF-8 to UTF-16.
constexpr std::u16string	to_u16string (std::wstring_view rhs) noexcept
	Conversion from wide-string (UTF-16/32) to UTF-16.
constexpr std::u16string	to_u16string (std::string_view rhs) noexcept
	Conversion from UTF-8 to UTF-16.
constexpr std::u8string	to_u8string (std::u32string_view rhs) noexcept
	Conversion from UTF-32 to UTF-8.
constexpr std::u8string	to_u8string (std::u16string_view rhs) noexcept
	Conversion from UTF-16 to UTF-8.
constexpr std::u8string	to_u8string (std::u8string_view rhs) noexcept
	Identity conversion from UTF-8 to UTF-8.
constexpr std::u8string	to_u8string (std::wstring_view rhs) noexcept
	Conversion from wide-string (UTF-16/32) to UTF-8.
constexpr std::u8string	to_u8string (std::string_view rhs) noexcept
	Conversion from UTF-8 to UTF-8.
constexpr std::wstring	to_wstring (std::u32string_view rhs) noexcept
	Conversion from UTF-32 to wide-string (UTF-16/32).
constexpr std::wstring	to_wstring (std::u16string_view rhs) noexcept
	Conversion from UTF-16 to wide-string (UTF-16/32).
constexpr std::wstring	to_wstring (std::u8string_view rhs) noexcept
	Conversion from UTF-8 to wide-string (UTF-16/32).
constexpr std::wstring	to_wstring (std::wstring_view rhs) noexcept
	Identity conversion from wide-string (UTF-16/32) to wide-string (UTF-16/32).
constexpr std::wstring	to_wstring (std::string_view rhs) noexcept
	Conversion from UTF-8 to wide-string (UTF-16/32).
constexpr std::string	to_string (std::u32string_view rhs) noexcept
	Conversion from UTF-32 to UTF-8.
constexpr std::string	to_string (std::u16string_view rhs) noexcept
	Conversion from UTF-16 to UTF-8.
constexpr std::string	to_string (std::u8string_view rhs) noexcept
	Identity conversion from UTF-8 to UTF-8.
constexpr std::string	to_string (std::wstring_view rhs) noexcept
	Conversion from wide-string (UTF-16/32) to UTF-8.
constexpr std::string	to_string (std::string_view rhs) noexcept
	Conversion from UTF-8 to UTF-8.
hi_export bstring	gzip_decompress (std::span< std::byte const > bytes, std::size_t max_size)
hi_export bstring	gzip_decompress (std::filesystem::path const &path, std::size_t max_size=0x01000000)
hi_export bstring	inflate (std::span< std::byte const > bytes, std::size_t &offset, std::size_t max_size=0x0100 '0000)
	Inflate compressed data using the deflate algorithm bytes should include at least 32 bit of trailer, for the overflow check which will slightly overrun the actual compressed data for performance reasons.
bstring	zlib_decompress (std::span< std::byte const > bytes, std::size_t max_size)
bstring	zlib_decompress (std::filesystem::path const &path, std::size_t max_size=0x01000000)
constexpr matrix3	color_primaries_to_RGBtoXYZ (float wx, float wy, float rx, float ry, float gx, float gy, float bx, float by) noexcept
	Create a color space conversion matrix.
float	Rec2100_linear_to_gamma (float L) noexcept
	Rec.2100 linear to gamma transfer function.
float	Rec2100_gamma_to_linear (float N) noexcept
	Rec.2100 gamma to linear transfer function.
std::string_view	to_string (semantic_color rhs) noexcept
	Convert a semantic color to a string.
semantic_color	semantic_color_from_string (std::string_view str)
	Convert a string to a semantic color.
float	sRGB_linear_to_gamma (float u) noexcept
	sRGB linear to gamma transfer function.
float	sRGB_gamma_to_linear (float u) noexcept
	sRGB gamma to linear transfer function.
uint8_t	sRGB_linear16_to_gamma8 (half u) noexcept
	sRGB linear float-16 to gamma transfer function.
half	sRGB_gamma8_to_linear16 (uint8_t u) noexcept
	sRGB gamma to linear float-16 transfer function.
color	color_from_sRGB (float r, float g, float b, float a) noexcept
	Convert gama corrected sRGB color to the linear color.
color	color_from_sRGB (uint8_t r, uint8_t g, uint8_t b, uint8_t a) noexcept
	Convert gama corrected sRGB color to the linear color.
color	color_from_sRGB (std::string_view str)
constexpr global_state_type	operator| (global_state_type lhs, global_state_type rhs) noexcept
constexpr global_state_type	operator& (global_state_type lhs, global_state_type rhs) noexcept
constexpr global_state_type	operator~ (global_state_type rhs) noexcept
constexpr bool	to_bool (global_state_type rhs) noexcept
constexpr bool	is_system_running (global_state_type rhs) noexcept
constexpr bool	is_system_shutting_down (global_state_type rhs) noexcept
bool	is_system_running () noexcept
	Check if the HikoGUI system is running.
bool	is_system_shutting_down () noexcept
	Check if the HikoGUI system is being shut down.
void	set_log_level (global_state_type log_level) noexcept
	Set the logging level.
bool	global_state_disable (global_state_type subsystem, std::memory_order order=std::memory_order::seq_cst) noexcept
	Disable a subsystem.
bool	global_state_enable (global_state_type subsystem, std::memory_order order=std::memory_order::seq_cst) noexcept
	Enable a subsystem.
template<typename T > requires (is_atomic_v<T>)
T::value_type	start_subsystem (T &check_variable, typename T::value_type off_value, typename T::value_type(*init_function)(), void(*deinit_function)())
	Start a sub-system.
bool	start_subsystem (global_state_type state_bit, bool(*init_function)(), void(*deinit_function)())
	Start a sub-system.
template<typename T > requires (is_atomic_v<T>)
T::value_type	start_subsystem_or_terminate (T &check_variable, typename T::value_type off_value, typename T::value_type(*init_function)(), void(*deinit_function)())
	Start a sub-system.
void	stop_subsystem (void(*deinit_function)())
	Stop a sub-system.
void	start_system () noexcept
	Start the system.
void	shutdown_system () noexcept
	Shutdown the system.
thread_id	current_thread_id () noexcept
	Get the current thread id.
void	set_thread_name (std::string_view name) noexcept
	Set the name of the current thread.
std::string	get_thread_name (thread_id id) noexcept
	Get the thread name of a thread id.
std::vector< bool >	process_affinity_mask ()
	Get the current process CPU affinity mask.
std::vector< bool >	set_thread_affinity_mask (std::vector< bool > const &mask)
	Set the current thread CPU affinity mask.
std::vector< bool >	set_thread_affinity (std::size_t cpu_id)
	Set the current thread CPU affinity to a single CPU.
std::size_t	advance_thread_affinity (std::size_t &cpu) noexcept
	Advance thread affinity to the next CPU.
std::size_t	current_cpu_id () noexcept
	Get the current CPU id.
hi_export void *	unfair_mutex_deadlock_lock (void *object) noexcept
	Lock an object on this thread.
hi_export bool	unfair_mutex_deadlock_unlock (void *object) noexcept
	Unlock an object on this thread.
hi_export void	unfair_mutex_deadlock_remove_object (void *object) noexcept
	Remove the object from the detection.
hi_export void	unfair_mutex_deadlock_clear_stack () noexcept
	Clear the stack.
hi_export void	unfair_mutex_deadlock_clear_graph () noexcept
	Clear the graph.
template<std::input_iterator It, std::input_iterator ItEnd>
	lean_vector (It first, ItEnd last) -> lean_vector< typename std::iterator_traits< It >::value_type >
template<typename T , std::convertible_to< T >... Args>
lean_vector< T >	make_lean_vector (Args &&...args) noexcept
hi_export char *	make_cstr (char const *c_str, std::size_t size=-1) noexcept
	Copy a std::string to new memory.
hi_export char *	make_cstr (std::string const &s) noexcept
	Copy a std::string to new memory.
hi_export std::pair< int, char ** >	crt_start (int, char **, void *instance, int show_cmd)
int	crt_finish (int argc, char **argv, int exit_code)
template<typename Func , typename... Args> requires (is_invocable_task_v<Func, Args...>)
std::invoke_result_t< Func, Args... >	async_task (Func func, Args... args)
	Run a function asynchronously as a co-routine task.
template<typename Func , typename... Args> requires (not is_invocable_task_v<Func, Args...>)
task< std::invoke_result_t< Func, Args... > >	async_task (Func func, Args... args)
	Run a function asynchronously as a co-routine task.
template<typename Func , typename... Args>
auto	cancelable_async_task (Func func, std::stop_token stop_token, ::hi::progress_token progress_token, Args... args)
	Run a function asynchronously as a co-routine task.
template<typename T , typename Op >
void	dsp_visit (std::span< T > r, std::span< T const > a, std::span< T const > b, Op op) noexcept
template<typename T , typename Op >
void	dsp_visit (std::span< T > r, std::span< T const > a, T b, Op op) noexcept
template<typename T , typename Op >
void	dsp_visit (std::span< float > r, float a, Op op) noexcept
void	dsp_add (dsp_argument auto... args) noexcept
void	dsp_sub (dsp-argument auto... args) noexcept
void	dsp_mul (dsp-argument auto... args) noexcept
constexpr void	dsp_mul (float const *a, float const *b, float *o, size_t n) noexcept
	Multiply two float arrays into another array.
constexpr void	dsp_mul (float const *a, float b, float *o, size_t n) noexcept
	Multiply a float array with a scalar into another array.
constexpr void	dsp_mul_acc (float const *a, float const *b, float *o, size_t n) noexcept
	Multiply two float arrays and accumulate into another array.
constexpr void	dsp_mul_acc (float const *a, float b, float *o, size_t n) noexcept
	Multiply a float array with a scalar and accumulate into another array.
hi_export constexpr access_mode	operator| (access_mode const &lhs, access_mode const &rhs) noexcept
hi_export constexpr access_mode	operator& (access_mode const &lhs, access_mode const &rhs) noexcept
hi_export constexpr bool	to_bool (access_mode const &rhs) noexcept
hi_export generator< font_style >	alternatives (font_style start) noexcept
std::span< std::byte const >	otype_cmap_find (std::span< std::byte const > bytes, uint16_t platform_id, uint16_t platform_specific_id)
font_char_map	otype_cmap_parse_map_4 (std::span< std::byte const > over_sized_bytes)
font_char_map	otype_cmap_parse_map_6 (std::span< std::byte const > over_sized_bytes)
font_char_map	otype_cmap_parse_map_12 (std::span< std::byte const > over_sized_bytes)
font_char_map	otype_cmap_parse_map (std::span< std::byte const > bytes)
font_char_map	otype_cmap_parse (std::span< std::byte const > bytes)
graphic_path	otype_glyf_get_path (std::span< std::byte const > bytes, float em_scale)
	Get the graphic-path of a simple glyph.
generator< otype_glyf_component >	otype_glyf_get_compound (std::span< std::byte const > bytes, float em_scale)
	Get the components of a compound glyph.
bool	otype_glyf_is_compound (std::span< std::byte const > bytes)
	Check if this glyph is a compound or simple glyph.
aarectangle	otype_glyf_get_bounding_box (std::span< std::byte const > bytes, float em_scale)
	Get the bounding box of a simple glyph.
auto	otype_head_parse (std::span< std::byte const > bytes)
auto	otype_hhea_parse (std::span< std::byte const > bytes, float em_scale)
auto	otype_hmtx_get (std::span< std::byte const > bytes, hi::glyph_id glyph_id, uint16_t num_horizontal_metrics, float em_scale)
std::optional< float >	otype_kern_sub0_find (size_t &offset, std::span< std::byte const > bytes, glyph_id first_glyph_id, glyph_id second_glyph_id, float em_scale)
vector2	otype_kern_v0_find (std::span< std::byte const > bytes, glyph_id first_glyph_id, glyph_id second_glyph_id, float em_scale)
	'kern' version 0 find.
vector2	otype_kern_v1_find (std::span< std::byte const > bytes, glyph_id first_glyph_id, glyph_id second_glyph_id, float em_scale)
vector2	otype_kern_find (std::span< std::byte const > bytes, glyph_id first_glyph_id, glyph_id second_glyph_id, float em_scale)
std::pair< size_t, size_t >	otype_loca16_get (std::span< std::byte const > bytes, hi::glyph_id glyph_id)
std::pair< size_t, size_t >	otype_loca32_get (std::span< std::byte const > bytes, hi::glyph_id glyph_id)
std::pair< size_t, size_t >	otype_loca_get (std::span< std::byte const > loca_bytes, hi::glyph_id glyph_id, bool loca_is_offset32)
std::span< std::byte const >	otype_loca_get (std::span< std::byte const > loca_bytes, std::span< std::byte const > glyf_bytes, hi::glyph_id glyph_id, bool loca_is_offset32)
auto	otype_maxp_parse (std::span< std::byte const > bytes)
std::optional< std::string >	otype_name_search (std::span< std::byte const > bytes, uint16_t name_id, language_tag language=language_tag{"en"})
	Get a name from the name table.
auto	otype_name_get_family (std::span< std::byte const > bytes)
auto	otype_parse_os2 (std::span< std::byte const > bytes, float em_scale)
template<fixed_string Name>
std::span< std::byte const >	otype_sfnt_search (std::span< std::byte const > bytes)
std::optional< std::string >	otype_get_string (std::span< std::byte const > bytes, uint16_t platform_id, uint16_t platform_specific_id)
constexpr std::optional< float >	make_guideline (vertical_alignment alignment, float bottom, float top, float guideline_width)
	Create a guideline between two points.
constexpr std::optional< float >	make_guideline (horizontal_alignment alignment, float left, float right, float guideline_width=0.0f)
	Create a guideline between two points.
constexpr horizontal_alignment	mirror (horizontal_alignment const &rhs) noexcept
	Mirror the horizontal alignment.
constexpr horizontal_alignment	mirror (horizontal_alignment const &rhs, bool left_to_right) noexcept
	Mirror the horizontal alignment.
constexpr horizontal_alignment	resolve (horizontal_alignment const &rhs, bool left_to_right) noexcept
constexpr horizontal_alignment	resolve_mirror (horizontal_alignment const &rhs, bool left_to_right) noexcept
constexpr alignment	operator| (horizontal_alignment lhs, vertical_alignment rhs) noexcept
	Combine vertical and horizontal alignment.
constexpr alignment	operator| (vertical_alignment lhs, horizontal_alignment rhs) noexcept
	Combine vertical and horizontal alignment.
constexpr axis	operator& (axis const &lhs, axis const &rhs) noexcept
	AND the axis.
constexpr axis	operator| (axis const &lhs, axis const &rhs) noexcept
	OR the axis.
constexpr bool	to_bool (axis const &rhs) noexcept
	Check if any of the axis are set.
constexpr matrix2	operator* (matrix2 const &lhs, matrix2 const &rhs) noexcept
	Matrix/Matrix multiplication.
constexpr aarectangle	operator* (scale2 const &lhs, aarectangle const &rhs) noexcept
	Scale a rectangle around it's center.
constexpr matrix2	operator* (translate2 const &lhs, scale2 const &rhs) noexcept
constexpr matrix3	operator* (matrix3 const &lhs, matrix3 const &rhs) noexcept
	Matrix/Matrix multiplication.
constexpr matrix3	operator* (translate3 const &lhs, scale3 const &rhs) noexcept
constexpr matrix3	operator* (translate3 const &lhs, rotate3 const &rhs) noexcept
constexpr scale2	operator/ (extent2 const &lhs, extent2 const &rhs) noexcept
constexpr scale3	operator/ (extent3 const &lhs, extent3 const &rhs) noexcept
constexpr matrix2	operator* (translate2 const &lhs, matrix2 const &rhs) noexcept
constexpr matrix3	operator* (translate3 const &lhs, matrix3 const &rhs) noexcept
constexpr translate2	operator* (translate2 const &lhs, translate2 const &rhs) noexcept
constexpr translate3	operator* (translate3 const &lhs, translate3 const &rhs) noexcept
constexpr matrix2	operator* (translate2 const &lhs, rotate2 const &rhs) noexcept
constexpr matrix2	operator* (scale2 const &lhs, translate2 const &rhs) noexcept
constexpr matrix3	operator* (scale3 const &lhs, translate3 const &rhs) noexcept
constexpr scale2	operator* (scale2 const &lhs, scale2 const &rhs) noexcept
constexpr scale3	operator* (scale3 const &lhs, scale3 const &rhs) noexcept
float	operator* (matrix2 const &lhs, float const &rhs) noexcept
	Transform a float by the scaling factor of the matrix.
float	operator* (matrix3 const &lhs, float const &rhs) noexcept
	Transform a float by the scaling factor of the matrix.
constexpr float	operator* (translate2 const &, float const &rhs) noexcept
constexpr float	operator* (translate3 const &, float const &rhs) noexcept
constexpr float	operator* (scale2 const &lhs, float const &rhs) noexcept
constexpr float	operator* (scale3 const &lhs, float const &rhs) noexcept
constexpr float	operator* (rotate2 const &, float const &rhs) noexcept
constexpr float	operator* (rotate3 const &, float const &rhs) noexcept
constexpr vector2	operator* (matrix2 const &lhs, vector2 const &rhs) noexcept
	Transform a vector by the matrix.
constexpr vector2	operator* (translate2 const &, vector2 const &rhs) noexcept
constexpr vector2	operator* (translate3 const &, vector2 const &rhs) noexcept
constexpr vector2	operator* (scale2 const &lhs, vector2 const &rhs) noexcept
constexpr vector2	operator* (scale3 const &lhs, vector2 const &rhs) noexcept
constexpr vector3	operator* (matrix3 const &lhs, vector3 const &rhs) noexcept
	Transform a vector by the matrix.
constexpr vector3	operator* (translate3 const &, vector3 const &rhs) noexcept
constexpr vector3	operator* (scale3 const &lhs, vector3 const &rhs) noexcept
constexpr point2	operator* (matrix2 const &lhs, point2 const &rhs) noexcept
	Transform a point by the matrix.
constexpr point2	operator* (translate2 const &lhs, point2 const &rhs) noexcept
constexpr point2	operator* (scale2 const &lhs, point2 const &rhs) noexcept
constexpr point2	operator* (scale3 const &lhs, point2 const &rhs) noexcept
constexpr point3	operator* (matrix3 const &lhs, point3 const &rhs) noexcept
	Transform a point by the matrix.
constexpr point3	operator* (translate3 const &lhs, point3 const &rhs) noexcept
constexpr point3	operator* (scale3 const &lhs, point3 const &rhs) noexcept
constexpr extent2	operator* (transformer2 auto const &lhs, extent2 const &rhs) noexcept
constexpr extent3	operator* (transformer3 auto const &lhs, std::convertible_to< extent3 > auto const &rhs) noexcept
constexpr aarectangle	operator* (translate2 const &lhs, aarectangle const &rhs) noexcept
constexpr rectangle	operator* (transformer auto const &lhs, aarectangle const &rhs) noexcept
	Transform an axis-aligned rectangle by the matrix.
constexpr rectangle	operator* (matrix2 const &lhs, aarectangle const &rhs) noexcept
	Transform an axis-aligned rectangle without rotation by the matrix.
constexpr rectangle	full_mul (matrix2 const &lhs, aarectangle const &rhs) noexcept
	Transform an axis-aligned rectangle without rotation by the matrix.
constexpr aarectangle	fast_mul (matrix2 const &lhs, aarectangle const &rhs) noexcept
	Transform an axis-aligned rectangle without rotation by the matrix.
constexpr rectangle	operator* (transformer auto const &lhs, rectangle const &rhs) noexcept
	Transform a rectangle by the matrix.
constexpr quad	operator* (transformer auto const &lhs, quad const &rhs) noexcept
	Transform a quad by the matrix.
constexpr circle	operator* (transformer auto const &lhs, circle const &rhs) noexcept
	Transform a circle by the matrix.
constexpr line_segment	operator* (transformer auto const &lhs, line_segment const &rhs) noexcept
	Transform a line-segment by the matrix.
constexpr corner_radii	operator* (matrix3 const &lhs, corner_radii const &rhs) noexcept
	Transform a float by the scaling factor of the matrix.
template<typename Lhs , transformer Rhs> requires requires(Lhs& a, Rhs const& b) { a = b * a; }
constexpr Lhs &	operator*= (Lhs &lhs, Rhs const &rhs) noexcept
	Inplace geometric translation.
constexpr aarectangle	fit (aarectangle const &bounds, aarectangle const &rectangle) noexcept
constexpr quad	scale_from_center (quad const &lhs, scale2 const &rhs) noexcept
	scale the quad.
constexpr translate3	translate_z (float z) noexcept
point3	get_atlas_position (std::size_t page) noexcept
	Get the coordinate in the atlas from a page index.
point2	get_staging_position (const gfx_pipeline_image::paged_image &image, std::size_t page_index)
	Get the position in the staging texture map to copy from.
void	render_doc_set_overlay (bool frameRate, bool frameNumber, bool captureList) noexcept
void	start_render_doc () noexcept
template<typename T >
constexpr std::array< T, 2 >	bezierToPolynomial (T P1, T P2) noexcept
template<typename T >
constexpr std::array< T, 3 >	bezierToPolynomial (T P1, T C, T P2) noexcept
template<typename T >
constexpr std::array< T, 4 >	bezierToPolynomial (T P1, T C1, T C2, T P2) noexcept
constexpr point2	bezierPointAt (point2 P1, point2 P2, float t) noexcept
constexpr point2	bezierPointAt (point2 P1, point2 C, point2 P2, float t) noexcept
constexpr point2	bezierPointAt (point2 P1, point2 C1, point2 C2, point2 P2, float t) noexcept
constexpr vector2	bezierTangentAt (point2 P1, point2 P2, float t) noexcept
constexpr vector2	bezierTangentAt (point2 P1, point2 C, point2 P2, float t) noexcept
constexpr vector2	bezierTangentAt (point2 P1, point2 C1, point2 C2, point2 P2, float t) noexcept
lean_vector< float >	bezierFindT (float P1, float P2, float x) noexcept
lean_vector< float >	bezierFindT (float P1, float C, float P2, float x) noexcept
lean_vector< float >	bezierFindT (float P1, float C1, float C2, float P2, float x) noexcept
lean_vector< float >	bezierFindTForNormalsIntersectingPoint (point2 P1, point2 P2, point2 P) noexcept
	Find t on the line P1->P2 which is closest to P.
lean_vector< float >	bezierFindTForNormalsIntersectingPoint (point2 P1, point2 C, point2 P2, point2 P) noexcept
	Find t on the curve P1->C->P2 which is closest to P.
lean_vector< float >	bezierFindX (point2 P1, point2 P2, float y) noexcept
lean_vector< float >	bezierFindX (point2 P1, point2 C, point2 P2, float y) noexcept
lean_vector< float >	bezierFindX (point2 P1, point2 C1, point2 C2, point2 P2, float y) noexcept
float	bezierFlatness (point2 P1, point2 P2) noexcept
float	bezierFlatness (point2 P1, point2 C, point2 P2) noexcept
float	bezierFlatness (point2 P1, point2 C1, point2 C2, point2 P2) noexcept
std::pair< point2, point2 >	parallelLine (point2 P1, point2 P2, float distance) noexcept
std::optional< point2 >	getIntersectionPoint (point2 A1, point2 A2, point2 B1, point2 B2) noexcept
std::optional< point2 >	getExtrapolatedIntersectionPoint (point2 A1, point2 A2, point2 B1, point2 B2) noexcept
constexpr std::vector< bezier_curve >	makeContourFromPoints (std::vector< bezier_point >::const_iterator begin, std::vector< bezier_point >::const_iterator end) noexcept
	Make a contour of Bezier curves from a list of points.
constexpr std::vector< bezier_curve >	makeInverseContour (std::vector< bezier_curve > const &contour) noexcept
	Inverse a contour.
constexpr std::vector< bezier_curve >	makeParallelContour (std::vector< bezier_curve > const &contour, float offset, hi::line_join_style line_join_style, float tolerance) noexcept
constexpr void	fill (pixmap_span< uint8_t > image, std::vector< bezier_curve > const &curves) noexcept
	Fill a linear gray scale image by filling a curve with anti-aliasing.
constexpr void	fill (pixmap_span< sdf_r8 > image, std::vector< bezier_curve > const &curves) noexcept
	Fill a signed distance field image from the given contour.
hi_export void	fill (pixmap_span< sdf_r8 > dst, graphic_path const &path) noexcept
	Fill a signed distance field image from the given path.
std::string_view	to_string (gui_event_type rhs) noexcept
	Convert a GUI event type to a string.
constexpr gui_event_type	to_gui_event_type (std::string_view name) noexcept
	Convert a name to a GUI event type.
constexpr gui_event_variant	to_gui_event_variant (gui_event_type type) noexcept
	Convert a gui event type, to an gui event variant.
void	load_user_keyboard_bindings (std::filesystem::path const &path)
void	load_system_keyboard_bindings (std::filesystem::path const &path)
generator< gui_event >	translate_keyboard_event (gui_event event) noexcept
widget_id	make_widget_id () noexcept
void	release_widget_id (widget_id id) noexcept
constexpr bool	operator== (widget_id const &lhs, std::integral auto const &rhs) noexcept
constexpr std::strong_ordering	operator<=> (widget_id const &lhs, std::integral auto const &rhs) noexcept
widget_intf *	get_if (widget_intf *start, widget_id id, bool include_invisible) noexcept
widget_intf &	get (widget_intf &start, widget_id id, bool include_invisible)
std::vector< language_tag >	variants (std::vector< language_tag > languages)
	Add variants to the list of languages.
template<typename T >
	pixmap (pixmap_span< T > const &other) -> pixmap< std::remove_const_t< T >, std::allocator< std::remove_const_t< T > > >
template<typename T , typename Allocator >
	pixmap (pixmap_span< T > const &other, Allocator allocator) -> pixmap< std::remove_const_t< T >, Allocator >
template<typename T , typename Allocator >
	pixmap_span (pixmap< T, Allocator > const &other) -> pixmap_span< T const >
template<typename T , typename Allocator >
	pixmap_span (pixmap< T, Allocator > &other) -> pixmap_span< T >
template<std::input_iterator It, std::sentinel_for< It > ItEnd>
constexpr po_translations	parse_po (It it, ItEnd last, std::string_view path)
constexpr po_translations	parse_po (std::string_view text, std::string_view path)
po_translations	parse_po (std::filesystem::path const &path)
void	add_translation (std::string_view msgid, language_tag language, std::vector< std::string > const &plural_forms) noexcept
void	add_translations (po_translations const &po_translations) noexcept
void	load_translations (std::filesystem::path path)
void	load_translations ()
std::pair< std::string_view, language_tag >	get_translation (std::string_view msgid, long long n, std::vector< language_tag > const &languages) noexcept
constexpr long long	get_first_integer_argument () noexcept
template<typename First , typename... Rest>
constexpr long long	get_first_integer_argument (First const &first, Rest const &...rest) noexcept
hi_export std::string const &	get_application_name ()
hi_export std::string const &	get_application_slug ()
hi_export std::string const &	get_application_vendor ()
hi_export semantic_version const &	get_application_version ()
hi_export void	set_application_name (std::string_view name, std::string_view slug)
hi_export void	set_application_name (std::string_view name)
hi_export void	set_application_vendor (std::string_view name)
hi_export void	set_application_version (semantic_version version) noexcept
hi_export void	set_application_version (int major, int minor=0, int patch=0) noexcept
template<size_t LookaheadCount, typename It , std::sentinel_for< It > ItEnd = std::default_sentinel_t>
auto	make_lookahead_iterator (It first, ItEnd last=std::default_sentinel) noexcept
	Create a lookahead_iterator from a forward iterator.
template<size_t LookaheadCount, std::ranges::range Range>
auto	make_lookahead_iterator (Range const &range) noexcept
	Create a lookahead_iterator from a forward iterator.
template<std::input_iterator It, std::sentinel_for< It > ItEnd>
hi_export constexpr std::string	token_location (It &it, ItEnd last, std::string_view path) noexcept
	Create a location string for error messages.
template<std::input_iterator It>
hi_export constexpr std::string	token_location (It &it, std::string_view path) noexcept
hi_export std::ostream &	operator<< (std::ostream &lhs, token const &rhs)
std::optional< cmake_install >	parse_cmake_install (std::filesystem::path path) noexcept
	Parse a cmake_install.cmake file.
hi_export generator< std::filesystem::path >	glob (glob_pattern pattern) noexcept
	Find paths on the filesystem that match the glob pattern.
hi_export generator< std::filesystem::path >	glob (std::string_view pattern) noexcept
	Find paths on the filesystem that match the glob pattern.
hi_export generator< std::filesystem::path >	glob (std::string pattern) noexcept
	Find paths on the filesystem that match the glob pattern.
hi_export generator< std::filesystem::path >	glob (char const *pattern) noexcept
	Find paths on the filesystem that match the glob pattern.
hi_export generator< std::filesystem::path >	glob (std::filesystem::path pattern) noexcept
	Find paths on the filesystem that match the glob pattern.
template<path_range Locations>
hi_export generator< std::filesystem::path >	glob (Locations &&locations, std::filesystem::path ref) noexcept
	Find paths on the filesystem that match the glob pattern.
template<path_range Locations>
hi_export generator< std::filesystem::path >	glob (Locations &&locations, std::string_view ref) noexcept
	Find paths on the filesystem that match the glob pattern.
template<path_range Locations>
hi_export generator< std::filesystem::path >	glob (Locations &&locations, std::string ref) noexcept
	Find paths on the filesystem that match the glob pattern.
template<path_range Locations>
hi_export generator< std::filesystem::path >	glob (Locations &&locations, char const *ref) noexcept
	Find paths on the filesystem that match the glob pattern.
template<path_range Locations>
generator< std::filesystem::path >	find_path (Locations &&locations, std::filesystem::path const &ref) noexcept
	Find a path.
generator< std::filesystem::path >	find_path (std::filesystem::path const &location, std::filesystem::path const &ref) noexcept
	Find a path.
template<path_range Locations>
std::filesystem::path	get_path (Locations &&locations, std::filesystem::path const &ref)
	Get a path.
std::filesystem::path	get_path (std::filesystem::path const &location, std::filesystem::path const &ref)
	Get a path.
std::filesystem::path	get_path (std::expected< std::filesystem::path, std::error_code > const &location, std::filesystem::path const &ref)
	Get a path.
template<path_range Locations>
std::string	to_string (Locations &&locations) noexcept
	Get a string representation of a search-path.
std::expected< std::filesystem::path, std::error_code >	executable_file () noexcept
	Get the full path to this executable.
std::expected< std::filesystem::path, std::error_code >	executable_dir () noexcept
	Get the full path to the directory when this executable is located.
std::expected< std::filesystem::path, std::error_code >	data_dir () noexcept
	Get the full path to the directory where the application should store its data.
std::expected< std::filesystem::path, std::error_code >	log_dir () noexcept
	Get the full path to the directory where the application should store its log files.
generator< std::filesystem::path >	resource_dirs () noexcept
	The directories to search for resource files.
generator< std::filesystem::path >	system_font_dirs () noexcept
	The directories to search for system font files.
generator< std::filesystem::path >	font_files () noexcept
	The directories to search for font files of both the application and system.
generator< std::filesystem::path >	theme_files () noexcept
	The directories to search for theme files of the application.
std::optional< std::filesystem::path >	source_dir () noexcept
	Get the full path to source code of this executable.
std::filesystem::path	library_source_dir () noexcept
std::filesystem::path	library_test_data_dir () noexcept
generator< std::filesystem::path >	font_dirs () noexcept
generator< std::filesystem::path >	theme_dirs () noexcept
std::expected< std::string, std::error_code >	get_user_setting_string (std::string_view key) noexcept
std::expected< long long, std::error_code >	get_user_setting_integral (std::string_view key) noexcept
template<typename T >
std::expected< T, std::error_code >	get_user_setting (std::string_view key) noexcept=delete
	Get a user-setting for the application.
std::error_code	set_user_setting (std::string_view key, std::string_view value) noexcept
	Set a user-setting for the application.
std::error_code	set_user_setting (std::string_view key, long long value) noexcept
	Set a user-setting for the application.
std::error_code	delete_user_setting (std::string_view key) noexcept
	Delete a user-setting for the application.
std::error_code	delete_user_settings () noexcept
	Delete all user-setting for the application.
template<>
std::expected< std::string, std::error_code >	get_user_setting (std::string_view key) noexcept
std::string	user_setting_registry_path ()
template<std::input_or_output_iterator It, std::sentinel_for< It > ItEnd> requires std::same_as<typename It::value_type, grapheme>
hi_export constexpr It	apply_markup (It first, ItEnd last, language_tag default_language=language_tag{"en-US"}, phrasing default_phrasing=phrasing::regular) noexcept
	Inplace-apply markup to a string of graphemes.
hi_export constexpr gstring	apply_markup (gstring str, language_tag default_language=language_tag{"en-US"}, phrasing default_phrasing=phrasing::regular) noexcept
	Apply markup to a string of graphemes.
hi_export constexpr gstring	apply_markup (std::string_view str, language_tag default_language=language_tag{"en-US"}, phrasing default_phrasing=phrasing::regular) noexcept
	Apply markup to a string of graphemes.
constexpr bool	is_isolate_starter (unicode_bidi_class const &rhs) noexcept
constexpr bool	is_isolate_formatter (unicode_bidi_class const &rhs) noexcept
constexpr bool	is_NI (unicode_bidi_class const &rhs) noexcept
constexpr bool	is_control (unicode_bidi_class const &rhs) noexcept
constexpr unicode_bidi_class	unicode_bidi_class_from_string (std::string_view str) noexcept
constexpr unicode_bidi_class	ucd_get_bidi_class (char32_t code_point) noexcept
constexpr char32_t	ucd_get_bidi_mirroring_glyph (char32_t code_point) noexcept
	Get the bidi-mirroring-glyph for a code-point.
constexpr unicode_bidi_paired_bracket_type	ucd_get_bidi_paired_bracket_type (char32_t code_point) noexcept
constexpr uint8_t	ucd_get_canonical_combining_class (char32_t code_point) noexcept
constexpr std::optional< char32_t >	ucd_get_composition (char32_t cp1, char32_t cp2) noexcept
	Get the composition info of two code-points.
constexpr ucd_decomposition_info	ucd_get_decomposition (char32_t code_point) noexcept
	Get the decomposition info of a code-point.
constexpr unicode_east_asian_width	ucd_get_east_asian_width (char32_t code_point) noexcept
constexpr bool	is_LC (unicode_general_category const &rhs) noexcept
constexpr bool	is_L (unicode_general_category const &rhs) noexcept
constexpr bool	is_M (unicode_general_category const &rhs) noexcept
constexpr bool	is_Mn_or_Mc (unicode_general_category const &rhs) noexcept
constexpr bool	is_N (unicode_general_category const &rhs) noexcept
constexpr bool	is_P (unicode_general_category const &rhs) noexcept
constexpr bool	is_S (unicode_general_category const &rhs) noexcept
constexpr bool	is_Z (unicode_general_category const &rhs) noexcept
constexpr bool	is_Zp_or_Zl (unicode_general_category const &rhs) noexcept
constexpr bool	is_C (unicode_general_category const &rhs) noexcept
constexpr bool	is_visible (unicode_general_category const &rhs) noexcept
constexpr bool	is_noncharacter (char32_t rhs) noexcept
constexpr unicode_general_category	ucd_get_general_category (char32_t code_point) noexcept
constexpr unicode_grapheme_cluster_break	ucd_get_grapheme_cluster_break (char32_t code_point) noexcept
constexpr unicode_lexical_class	ucd_get_lexical_class (char32_t code_point) noexcept
constexpr unicode_line_break_class	ucd_get_line_break_class (char32_t code_point) noexcept
constexpr bool	operator== (iso_15924 const &lhs, unicode_script const &rhs) noexcept
constexpr iso_15924	ucd_get_script (char32_t code_point) noexcept
constexpr unicode_sentence_break_property	ucd_get_sentence_break_property (char32_t code_point) noexcept
constexpr unicode_word_break_property	ucd_get_word_break_property (char32_t code_point) noexcept
template<typename It , typename ItEnd >
constexpr std::vector< unicode_break_opportunity >	unicode_grapheme_break (It first, ItEnd last) noexcept
constexpr plurality_mask	operator| (plurality_mask const &lhs, plurality_mask const &rhs) noexcept
	Or plurality masks together.
constexpr plurality	cardinal_plural (language_tag language, std::integral auto n) noexcept
	Get plural information of a number in a given language.
constexpr size_t	cardinal_plural (language_tag language, std::integral auto n, size_t size) noexcept
	Get an index into message plural-variants for a given number.
template<typename FontSizeT , typename ByT >
au::Quantity< PixelsPerEm, std::common_type_t< FontSizeT, ByT > >	round (au::Quantity< PixelsPerEm, FontSizeT > font_size, au::Quantity< EmSquares, ByT > const &by)
	Round to font size in pixels-per-em.
hi_export constexpr bool	bound_check (std::integral auto index, std::integral auto upper) noexcept
	Check if an index is less than the bound.
hi_export constexpr bool	bound_check (std::integral auto index, std::integral auto lower, std::integral auto upper) noexcept
	Check if an index is between the lower (inclusive) and upper (exclusive).
hi_export constexpr bool	bound_check (std::floating_point auto index, std::floating_point auto lower, std::floating_point auto upper) noexcept
	Check if an floating point value is between the lower (inclusive) and upper (inclusive).
hi_export constexpr bool	bound_check (std::integral auto index, bound_check_range_helper auto &&range) noexcept
	Check if an index is within a range.
bool	get_bit (std::span< std::byte const > buffer, std::size_t &index) noexcept
	Read a single bit from span of bytes Bits are ordered LSB first.
std::size_t	get_bits (std::span< std::byte const > buffer, std::size_t &index, std::size_t length) noexcept
	Read a bits from of span of bytes Bits are ordered LSB first.
template<typename T >
constexpr T	copy (T value) noexcept
template<typename Out , typename In >
constexpr Out	up_cast (In *rhs) noexcept
	Cast a pointer to a class to its base class or itself.
template<typename Out >
constexpr Out	up_cast (nullptr_t) noexcept
	Cast a nullptr to a class.
template<typename Out , typename In >
constexpr Out	up_cast (In &rhs) noexcept
	Cast a reference to a class to its base class or itself.
template<typename Out , typename In >
constexpr Out	down_cast (In *rhs) noexcept
	Cast a pointer to a class to its derived class or itself.
template<typename Out > requires std::is_pointer_v<Out>
constexpr Out	down_cast (nullptr_t) noexcept
	Cast a pointer to a class to its derived class or itself.
template<typename Out , typename In >
constexpr Out	down_cast (In &rhs) noexcept
	Cast a reference to a class to its derived class or itself.
template<typename Out , std::same_as< Out > In>
constexpr Out	wide_cast (In const &rhs) noexcept
	Cast to a type which can hold all values from the input type.
template<std::floating_point Out, std::floating_point In> requires (not std::same_as<In, Out>)
constexpr Out	wide_cast (In const &rhs) noexcept
	Cast a floating point number to a floating point type that is wider.
template<std::integral Out, std::integral In> requires (not std::same_as<In, Out>)
constexpr Out	wide_cast (In rhs) noexcept
	Cast a integer to an integer type which is wider.
template<std::floating_point Out, std::integral In>
constexpr Out	wide_cast (In rhs) noexcept
	Cast a integer to an float type which is wider.
template<std::integral Out, arithmetic In>
constexpr Out	saturate_cast (In rhs) noexcept
	Cast a numeric value to an integer saturating on overflow.
template<typename Out , std::same_as< Out > In>
constexpr bool	can_narrow_cast (In const &rhs) noexcept
	Check if a value can be casted to a narrow type.
template<std::floating_point Out, std::floating_point In> requires (not std::same_as<In, Out>)
constexpr bool	can_narrow_cast (In const &rhs) noexcept
	Check if a value can be casted to a narrow type.
template<typename Out , std::same_as< Out > In>
constexpr Out	narrow_cast (In const &rhs) noexcept
	Cast numeric values without loss of precision.
template<std::floating_point Out, std::floating_point In> requires (not std::same_as<In, Out>)
constexpr Out	narrow_cast (In const &rhs) noexcept
	Cast numeric values without loss of precision.
template<std::integral Out, std::floating_point In>
constexpr bool	can_round_cast (In rhs) noexcept
template<std::integral Out, std::floating_point In>
constexpr bool	can_floor_cast (In rhs) noexcept
template<std::integral Out, std::floating_point In>
constexpr bool	can_ceil_cast (In rhs) noexcept
template<std::integral Out, std::floating_point In>
constexpr Out	round_cast (In rhs) noexcept
template<std::integral Out, std::floating_point In>
constexpr Out	floor_cast (In rhs) noexcept
template<std::integral Out, std::floating_point In>
constexpr Out	ceil_cast (In rhs) noexcept
template<std::integral In>
constexpr std::make_unsigned_t< In >	to_unsigned (In rhs) noexcept
	Cast an integral to an unsigned integral of the same size.
template<std::integral In>
constexpr std::make_signed_t< In >	to_signed (In rhs) noexcept
	Cast an integral to an signed integral of the same size.
template<std::integral Out, std::integral In>
constexpr Out	truncate (In rhs) noexcept
	Cast between integral types truncating or zero-extending the result.
template<std::integral Out, std::integral In>
constexpr Out	char_cast (In rhs) noexcept
	Cast a character.
template<std::integral Out>
constexpr Out	char_cast (std::byte rhs) noexcept
	Cast a character.
template<std::unsigned_integral OutType, std::unsigned_integral InType>
constexpr OutType	low_bit_cast (InType value) noexcept
	Return the low half of the input value.
template<std::unsigned_integral OutType, std::unsigned_integral InType>
constexpr OutType	high_bit_cast (InType value) noexcept
	Return the upper half of the input value.
template<std::unsigned_integral OutType, std::unsigned_integral InType>
constexpr OutType	merge_bit_cast (InType hi, InType lo) noexcept
	Return the upper half of the input value.
template<typename T > requires (requires(T&& x) { static_cast<bool>(std::forward<T>(x)); })
constexpr bool	to_bool (T &&rhs) noexcept
template<typename T >
constexpr T	to_mask (bool v) noexcept
	Create a mask from a boolean value.
template<typename T > requires std::is_pointer_v<T>
T	to_ptr (std::intptr_t value) noexcept
template<typename T >
std::intptr_t	to_int (T *ptr) noexcept
template<typename T , byte_like Byte>
copy_cv_t< T, Byte > &	implicit_cast (std::span< Byte > bytes)
template<typename T , byte_like Byte>
std::span< copy_cv_t< T, Byte > >	implicit_cast (std::span< Byte > bytes, size_t n)
template<typename T , byte_like Byte>
copy_cv_t< T, Byte > &	implicit_cast (size_t &offset, std::span< Byte > bytes)
template<typename T , byte_like Byte>
std::span< copy_cv_t< T, Byte > >	implicit_cast (size_t &offset, std::span< Byte > bytes, size_t n)
template<std::integral T>
std::string	to_string (T const &value) noexcept
	Convert integer to string.
template<std::integral T>
T	from_string (std::string_view str, int base=10)
	Convert a string to an integer.
template<std::floating_point T>
T	from_string (std::string_view str)
	Convert a string to an floating point.
template<arithmetic Lhs, arithmetic Rhs>
constexpr auto	three_way_compare (Lhs const &lhs, Rhs const &rhs) noexcept
	Safely compare two arithmetic values to each other.
void	start_console () noexcept
	Start the console.
void	enable_debugger () noexcept
	Enable the JIT debugger to be attached.
void	set_debug_message (char const *str) noexcept
bool	has_debug_message () noexcept
char const *	get_debug_message () noexcept
template<std::integral T>
constexpr unsigned long long	operator<< (T const &lhs, dialog_button const &rhs) noexcept
constexpr bool	to_bool (dialog_button_mask const &rhs) noexcept
constexpr dialog_button_mask	operator& (dialog_button_mask const &lhs, dialog_button_mask const &rhs) noexcept
constexpr dialog_button_mask	operator| (dialog_button_mask const &lhs, dialog_button_mask const &rhs) noexcept
constexpr dialog_button_mask &	operator&= (dialog_button_mask &lhs, dialog_button_mask const &rhs) noexcept
constexpr dialog_button_mask &	operator|= (dialog_button_mask &lhs, dialog_button_mask const &rhs) noexcept
constexpr dialog_button_mask	operator& (dialog_button_mask const &lhs, dialog_button const &rhs) noexcept
constexpr dialog_button_mask	operator| (dialog_button_mask const &lhs, dialog_button const &rhs) noexcept
constexpr dialog_button_mask &	operator&= (dialog_button_mask &lhs, dialog_button const &rhs) noexcept
constexpr dialog_button_mask &	operator|= (dialog_button_mask &lhs, dialog_button const &rhs) noexcept
std::expected< dialog_button, std::error_code >	dialog (std::string_view title, std::string_view text, dialog_button_mask button_mask=dialog_button_mask::ok) noexcept
	Display a modal dialog.
template<std::integral T>
constexpr T	little_to_native (T x)
	Convert an integral from little-to-native endian.
template<std::integral T>
constexpr T	big_to_native (T x)
	Convert an integral from big-to-native endian.
template<std::integral T>
constexpr T	native_to_little (T x)
	Convert an integral from native-to-little endian.
template<std::integral T>
constexpr T	native_to_big (T x)
	Convert an integral from native-to-big endian.
template<std::integral Out, std::endian Endian = std::endian::native, typename In >
constexpr Out	load (In const *src) noexcept
	Unaligned Load of a numeric value from an array.
template<std::integral T, std::endian Endian = std::endian::native>
T	load (void const *src) noexcept
	Unaligned Load of a numeric value from a byte-like array.
template<std::integral T>
constexpr T	load_le (T const *src) noexcept
	Load of a numeric value encoded in little-endian format.
template<std::integral T, byte_like B>
constexpr T	load_le (B const *src) noexcept
	Unaligned load of a numeric value encoded in little-endian format.
template<std::integral T>
T	load_le (void const *src) noexcept
	Unaligned load of a numeric value encoded in little-endian format.
template<std::integral T>
constexpr T	load_be (T const *src) noexcept
	Load of a numeric value encoded in big-endian format.
template<std::integral T, byte_like B>
constexpr T	load_be (B const *src) noexcept
	Unaligned load of a numeric value encoded in byte-endian format.
template<std::integral T>
T	load_be (void const *src) noexcept
	Unaligned load of a numeric value encoded in byte-endian format.
template<unsigned int NumBits, byte_like B>
constexpr auto	load_bits_be (B const *src, size_t bit_index) noexcept
	Unaligned load bits from a big-endian buffer at a bit-offset.
template<std::endian Endian = std::endian::native, std::integral T, byte_like B>
constexpr void	store (T value, B const *dst) noexcept
template<std::endian Endian = std::endian::native, std::integral T>
constexpr void	store (T value, void const *dst) noexcept
template<std::integral T, byte_like B>
constexpr void	store_le (T value, B const *dst) noexcept
template<std::integral T>
void	store_le (T value, void const *dst) noexcept
template<std::integral T, byte_like B>
constexpr void	store_be (T value, B const *dst) noexcept
template<std::integral T>
void	store_be (T value, void const *dst) noexcept
template<typename ValueType , typename NameType , typename... Rest>
	enum_metadata (ValueType const &, NameType const &, Rest const &...) -> enum_metadata< ValueType, enum_metadata_name_t< NameType >,(sizeof...(Rest)+2)/2 >
hi_export std::string	get_last_error_message (uint32_t error_code)
	Get the error message from an error code.
hi_export std::string	get_last_error_message ()
	Get the OS error message from the last error received on this thread.
template<fixed_string Tag>
hi_export consteval uint32_t	fourcc () noexcept
template<fixed_string Tag>
hi_export consteval uint32_t	operator""_fcc ()
template<std::size_t N>
hi_export	fixed_string (char const (&str)[N]) -> fixed_string< N - 1 >
template<std::invocable F>
hi_export	fixed_string (F const &f) -> fixed_string< F
	size ()>
void	initialize () noexcept
	Initialize base functionality of HikoGUI.
constexpr std::size_t	operator""_uz (unsigned long long lhs) noexcept
constexpr std::size_t	operator""_zu (unsigned long long lhs) noexcept
constexpr std::ptrdiff_t	operator""_z (unsigned long long lhs) noexcept
template<typename T , typename U >
bool	compare_store (T &lhs, U &&rhs) noexcept
	Compare then store if there was a change.
template<typename T , typename U >
bool	compare_store (std::atomic< T > &lhs, U &&rhs) noexcept
	Compare then store if there was a change.
template<class T , class U >
constexpr auto &&	forward_like (U &&x) noexcept
template<typename CharT , typename Traits = std::char_traits<CharT>>
std::basic_string< CharT, Traits >	getline (std::basic_istream< CharT, Traits > &in, size_t max_size) noexcept
	Get a line from an input string, upto a maximum size.
constexpr size_t	count (std::string_view haystack, std::string_view needle) noexcept
constexpr std::string	replace (std::string haystack, std::string_view needle, std::string_view replace) noexcept
template<size_t Index, typename Type >
constexpr decltype(auto)	get_data_member (Type &&rhs) noexcept
template<typename T >
constexpr auto	type_name () noexcept
void	atterminate (std::function< void()> f) noexcept
	Register functions that need to be called on std::terminate().
void	terminate_handler () noexcept
	The HikoGUI terminate handler.
std::chrono::time_zone const &	cached_current_zone () noexcept
	Cached current time zone.
template<std::integral T>
constexpr bool	is_integral_value (T const &rhs) noexcept
	Check if a value is integral.
template<typename F , typename... Args>
	default_async_delegate (F &&func, Args &&... args) -> default_async_delegate< default_async_delegate_result_type< F, Args... > >
template<typename Value , typename OnValue >
	default_radio_delegate (Value &&, OnValue &&) -> default_radio_delegate< observer_decay_t< Value > >
template<typename Value , typename Options >
	default_selection_delegate (Value &&, Options &&) -> default_selection_delegate< observer_decay_t< Value > >
template<typename Value > requires requires { default_tab_delegate<observer_decay_t<Value>>{std::forward<Value>(value)}; }
std::shared_ptr< tab_delegate >	make_default_tab_delegate (Value &&value) noexcept
	Create a shared pointer to a default tab delegate.
template<typename Value > requires requires { default_text_delegate<observer_decay_t<Value>>{std::forward<Value>(value)}; }
std::shared_ptr< text_delegate >	make_default_text_delegate (Value &&value) noexcept
	Create a shared pointer to a default text delegate.
template<typename Value > requires requires { default_text_field_delegate<observer_decay_t<decltype(value)>>{std::forward<Value>(value)}; }
std::shared_ptr< text_field_delegate >	make_default_text_field_delegate (Value &&value) noexcept
	Create a shared pointer to a default text delegate.
template<typename Value >
	default_toggle_delegate (Value &&) -> default_toggle_delegate< observer_decay_t< Value > >
template<typename Value , typename OnValue >
	default_toggle_delegate (Value &&, OnValue &&) -> default_toggle_delegate< observer_decay_t< Value > >
template<typename Value , typename OnValue , typename OffValue >
	default_toggle_delegate (Value &&, OnValue &&, OffValue &&) -> default_toggle_delegate< observer_decay_t< Value > >
std::error_code	make_error_code (hresult_error code) noexcept
hresult_error	to_win32_error (win32_error code) noexcept
std::expected< std::filesystem::path, win32_error >	win32_GetModuleFileName (HMODULE module_handle=NULL) noexcept
std::expected< uint32_t, win32_error >	win32_GetExitCodeProcess (HANDLE process_handle) noexcept
template<typename StartupInfo >
std::expected< PROCESS_INFORMATION, win32_error >	win32_CreateProcess (std::optional< std::string > application_name, std::optional< std::string > command_line, SECURITY_ATTRIBUTES const *process_attributes, SECURITY_ATTRIBUTES const *thread_attributes, bool inherit_handles, uint32_t creation_flags, void const *environment, std::optional< std::string > current_directory, StartupInfo const &startup_info)
std::expected< std::filesystem::path, hresult_error >	win32_SHGetKnownFolderPath (KNOWNFOLDERID const &folder_id) noexcept
	Convenience function for SHGetKnownFolderPath().
std::expected< std::string, win32_error >	win32_WideCharToMultiByte (std::wstring_view s, unsigned int code_page=CP_UTF8, uint32_t flags=0) noexcept
	Convert a win32-API compatible std::wstring to a multi-byte std::string.
std::expected< std::wstring, win32_error >	win32_MultiByteToWideChar (std::string_view s, unsigned int code_page=CP_UTF8, uint32_t flags=0) noexcept
	Convert a win32-API compatible std::wstring to a multi-byte std::string.
std::expected< std::vector< std::string >, win32_error >	win32_MultiSZToStringVector (wchar_t const *first, wchar_t const *last) noexcept
	Convert a win32 zero terminated list of zero terminated strings.
std::expected< HANDLE, win32_error >	win32_CreateEvent (SECURITY_ATTRIBUTES const *event_attributes=nullptr, bool manual_reset=true, bool initial_state=false, std::optional< std::string > name=std::nullopt) noexcept
uint32_t	win32_HANDLE_to_int (HANDLE handle) noexcept
	Convert a HANDLE to a 32-bit unsigned integer.
HANDLE	win32_int_to_HANDLE (uint32_t i) noexcept
std::error_code	make_error_code (win32_error code) noexcept
win32_error	win32_GetLastError () noexcept
std::expected< std::string, win32_error >	win32_FormatMessage (win32_error error_code) noexcept
std::expected< std::string, win32_error >	win32_GetUserDefaultLocaleName () noexcept
win32_error	win32_RegDeleteKeyValue (HKEY key, std::string_view path, std::string_view name) noexcept
	Delete a registry value.
win32_error	win32_RegDeleteKey (HKEY key, std::string_view path) noexcept
	Delete all registry values and the last part of the subkey.
win32_error	win32_RegSetKeyValue (HKEY key, std::string_view path, std::string_view name, uint32_t value)
	Write a DWORD registry value.
win32_error	win32_RegSetKeyValue (HKEY key, std::string_view path, std::string_view name, std::string_view value)
	Write a string registry value.
std::expected< void, win32_error >	win32_RegGetValue_void (HKEY key, std::string_view path, std::string_view name)
	Check if a registry entry exists.
std::expected< uint32_t, win32_error >	win32_RegGetValue_dword (HKEY key, std::string_view path, std::string_view name) noexcept
	Read a DWORD registry value.
std::expected< std::string, win32_error >	win32_RegGetValue_string (HKEY key, std::string_view path, std::string_view name) noexcept
	Read a strings from the registry value.
std::expected< std::vector< std::string >, win32_error >	win32_RegGetValue_multi_string (HKEY key, std::string_view path, std::string_view name) noexcept
	Read a list of strings from the registry value.
template<typename T >
std::expected< T, win32_error >	win32_RegGetValue (HKEY key, std::string_view path, std::string_view name)=delete
	Read from the registry value.
template<>
std::expected< void, win32_error >	win32_RegGetValue (HKEY key, std::string_view path, std::string_view name)
template<>
std::expected< std::string, win32_error >	win32_RegGetValue (HKEY key, std::string_view path, std::string_view name)
template<>
std::expected< std::vector< std::string >, win32_error >	win32_RegGetValue (HKEY key, std::string_view path, std::string_view name)
std::expected< UINT, win32_error >	win32_MessageBox (HWND handle, std::string_view text, std::string_view caption, UINT type) noexcept

Variables
constexpr auto	cpu_feature_metadata = cpu_feature_metadata_init()
hi_export constexpr auto	audio_device_state_metadata
hi_export constexpr auto	audio_direction_metadata
hi_export constexpr auto	common_sample_rates
hi_export constexpr auto	surround_mode_icons
hi_export constexpr auto	surround_mode_names
hi_export constexpr auto	surround_mode_short_names
hi_export constexpr auto	surround_mode_speaker_mappings
template<typename T >
hi_export constexpr bool	is_datum_type_v = is_datum_type<T>::value
constexpr matrix3	Rec2020_to_XYZ = color_primaries_to_RGBtoXYZ(0.3127f, 0.3290f, 0.708f, 0.292f, 0.170f, 0.797f, 0.131f, 0.046f)
	Rec.2020 to XYZ color space conversion matrix.
constexpr matrix3	XYZ_to_Rec2020 = ~Rec2020_to_XYZ
	XYZ to Rec.2020 color space conversion matrix.
constexpr matrix3	Rec2100_to_XYZ = Rec2020_to_XYZ
	Rec.2100 to XYZ color space conversion matrix.
constexpr matrix3	XYZ_to_Rec2100 = XYZ_to_Rec2020
	XYZ to Rec.2100 color space conversion matrix.
constexpr auto	semantic_color_metadata
constexpr matrix3	sRGB_to_XYZ
	Matrix to convert sRGB to XYZ.
constexpr matrix3	XYZ_to_sRGB
	Matrix to convert XYZ to sRGB.
std::atomic< global_state_type >	global_state = global_state_type::log_level_default
	The global state of the hikogui framework.
template<typename Func , typename... Args>
constexpr auto	cancel_features_v = cancel_features<Func, Args...>::value
	The value of the hi::cancel_features<> type trait.
constexpr auto	font_style_metadata
template<typename T >
constexpr bool	transform2_v = transform2<T>::value
template<typename T >
constexpr bool	transform3_v = transform3<T>::value
void *	render_doc_api = nullptr
constexpr auto	gui_event_type_metadata
constexpr auto	widget_state_mode_shift = 0
constexpr auto	widget_state_value_shift = 5
std::unordered_map< translation_key, std::vector< std::string > >	translations
std::atomic< bool >	translations_loaded = false
std::optional< std::string >	_application_name = std::nullopt
std::optional< std::string >	_application_slug = std::nullopt
std::optional< std::string >	_application_vendor = std::nullopt
std::optional< semantic_version >	_application_version = std::nullopt
template<lexer_config Config>
constexpr auto	lexer = detail::lexer<Config>()
log	log_global
constexpr auto	dip = au::SingularNameFor<Dips>{}
constexpr auto	dips = au::QuantityMaker<Dips>{}
constexpr auto	dips_pt = au::QuantityPointMaker<Dips>{}
constexpr auto	dip_per_em = au::SingularNameFor<DipsPerEm>{}
constexpr auto	dips_per_em = au::QuantityMaker<DipsPerEm>{}
constexpr auto	dips_per_em_pt = au::QuantityPointMaker<DipsPerEm>{}
constexpr auto	em_square = au::SingularNameFor<EmSquares>{}
constexpr auto	em_squares = au::QuantityMaker<EmSquares>{}
constexpr auto	em_squares_pt = au::QuantityPointMaker<EmSquares>{}
constexpr auto	pixel = au::SingularNameFor<Pixels>{}
constexpr auto	pixels = au::QuantityMaker<Pixels>{}
constexpr auto	pixels_pt = au::QuantityPointMaker<Pixels>{}
constexpr auto	pixel_per_em = au::SingularNameFor<PixelsPerEm>{}
constexpr auto	pixels_per_em = au::QuantityMaker<PixelsPerEm>{}
constexpr auto	pixels_per_em_pt = au::QuantityPointMaker<PixelsPerEm>{}
constexpr auto	pixel_per_inch = au::SingularNameFor<PixelsPerInch>{}
constexpr auto	pixels_per_inch = au::QuantityMaker<PixelsPerInch>{}
constexpr auto	pixels_per_inch_pt = au::QuantityPointMaker<PixelsPerInch>{}
constexpr auto	point = au::SingularNameFor<Points>{}
constexpr auto	points = au::QuantityMaker<Points>{}
constexpr auto	points_pt = au::QuantityPointMaker<Points>{}
constexpr auto	point_per_em = au::SingularNameFor<PointsPerEm>{}
constexpr auto	points_per_em = au::QuantityMaker<PointsPerEm>{}
constexpr auto	points_per_em_pt = au::QuantityPointMaker<PointsPerEm>{}
constexpr auto	device_type_metadata
constexpr auto	policy_metadata
template<typename T >
constexpr size_t	number_of_data_members_v = number_of_data_members<T>::value
std::terminate_handler	old_terminate_handler
	The old terminate handler.
template<typename T >
constexpr bool	is_numeric_signed_integral_v = is_numeric_signed_integral<T>::value
template<typename T >
constexpr bool	is_numeric_unsigned_integral_v = is_numeric_unsigned_integral<T>::value
template<typename T >
constexpr bool	is_numeric_integral_v = is_numeric_integral<T>::value
template<typename T >
constexpr bool	is_numeric_v = is_numeric<T>::value
template<typename T >
constexpr bool	is_character_v = is_character<T>::value
template<typename T >
constexpr bool	is_byte_like_v = is_byte_like<T>::value
	An array of this type will implicitly create objects within that array.
template<std::size_t N>
constexpr bool	has_native_intxx_v = has_native_intxx<N>::value
template<std::size_t N>
constexpr bool	has_native_uintxx_v = has_native_uintxx<N>::value
template<std::size_t N>
constexpr bool	has_native_floatxx_v = has_native_floatxx<N>::value
template<std::size_t N>
constexpr bool	has_intxx_v = has_intxx<N>::value
template<std::size_t N>
constexpr bool	has_uintxx_v = has_uintxx<N>::value
template<std::size_t N>
constexpr bool	has_floatxx_v = has_floatxx<N>::value
template<typename T >
constexpr bool	has_value_type_v = has_value_type<T>::value
template<typename T >
constexpr bool	has_add_callback_v = has_add_callback<T>::value
template<typename BaseType , typename DerivedType >
constexpr bool	is_decayed_base_of_v = is_decayed_base_of<BaseType, DerivedType>::value
template<typename DerivedType , typename BaseType >
constexpr bool	is_derived_from_v = is_derived_from<DerivedType, BaseType>::value
template<typename DerivedType , typename BaseType >
constexpr bool	is_decayed_derived_from_v = is_decayed_derived_from<DerivedType, BaseType>::value
template<typename T >
constexpr bool	is_atomic_v = is_atomic<T>::value
template<typename Out , typename In >
constexpr bool	type_in_range_v
	All values of numeric type In can be represented without loss of range by numeric type Out.
template<typename Context , typename Expected , typename... OtherExpected>
constexpr bool	is_forward_of_v = is_forward_of<Context, Expected, OtherExpected...>::value
template<typename T >
constexpr bool	default_values_v = default_values<T>::value
auto	global_hresult_error_category = hresult_error_category{}
auto	global_win32_error_category = win32_error_category{}

Detailed Description

The HikoGUI API version 1.

Typedef Documentation

copy_cv_t

template<typename To , typename From >

using hi::v1::copy_cv_t = typename copy_cv<To, From>::type

Type-trait to copy const volatile qualifiers from one type to another.

default_async_delegate_result_type

template<typename FuncType , typename... ArgTypes>

using hi::v1::default_async_delegate_result_type

Initial value:

 
    invoke_task_result_t<decltype(cancelable_async_task<FuncType, ArgTypes...>), FuncType, std::stop_token, progress_token, ArgTypes...>

length_variant

template<typename T >

using hi::v1::length_variant

Initial value:

 
    std::variant<au::Quantity<Points, T>, au::Quantity<Pixels, T>, au::Quantity<Dips, T>, au::Quantity<EmSquares, T>>

make_string_t

template<typename T >

using hi::v1::make_string_t = typename make_string<T>::type

type-trait to convert a character to a string type.

make_string_view_t

template<typename T >

using hi::v1::make_string_view_t = typename make_string_view<T>::type

type-trait to convert a character to a string_view type.

ssize_t

using hi::v1::ssize_t = std::ptrdiff_t

Signed size/index into an array.

variant_decay_t

template<typename T >

using hi::v1::variant_decay_t = variant_decay<T>::type

See also

variant_decay

Enumeration Type Documentation

border_side

enum class hi::v1::border_side

strong

The side where the border is drawn.

Enumerator
on	The border is drawn on the edge of a quad.
inside	The border is drawn inside the edge of a quad.
outside	The border is drawn outside the edge of a quad.

cancel_features_type

enum class hi::v1::cancel_features_type

strong

Features of an invocable.

Enumerator
none	This invocable does not have extra arguments.
stop	The extra argument is a std::stop_token.
progress	The extra argument is a hi::progress_token.
stop_and_progress	The extra arguments are a std::stop_token, followed by a hi::progress_token.

cpu_feature

enum class hi::v1::cpu_feature : uint8_t

strong

Possible features of x86 CPUs.

The features listed here are the ones which are required for official microarchitecture levels:

• x86-64-v1
• x86-64-v2
• x86-64-v3
• x86-64-v4

Plus some optional features that are used by HikoGUI.

cpu_feature_mask

enum class hi::v1::cpu_feature_mask : uint64_t

strong

A mask of features.

Currently this implementation can handle up to 64 features.

device_type

enum class hi::v1::device_type : unsigned char

strong

The device type this application is running on.

The underlying value can be used as the base pixel density after bitwise-and with 0xf8.

dialog_button_mask

enum class hi::v1::dialog_button_mask : uint64_t

strong

Enumerator
ok	A dialog box with just a "ok" button. There was a serious error, but the user can only accept the dialog as a notification. Note Valid on windows.
cancel_retry_continue	A dialog box with "cancel", "retry" and "continue" buttons. There was a serious error, but the user has some interation: "cancel": Cancel the processing the list of jobs. "retry": Retry the current job and when successful continue with the list of jobs. "continue": Skip the current job and continue with the next job in the list. Note Valid on windows.
yes_no	A dialog box with "yes" and "no" buttons. An important yes/no question: "yes" "no" Note Valid on windows.
ok_cancel	A dialog box with "ok" and "cancel" buttons. About to perform a dangerous operation: "ok": Perform the dangerous operation. "cancel": Cancel the dangerous operation. Note Valid on windows.
retry_cancel	A dialog box with "retry" and "cancel" buttons. A error during processing: "retry": Retry the operation. "cancel": Cancel the operation. Note Valid on windows.
yes_no_cancel	A dialog box with "yes", "no" and "cancel" buttons. An important yes/no question, but we can still cancel: "yes" "no" "cancel": Cancel the operation Note Valid on windows.

font_style

enum class hi::v1::font_style

strong

The different styles a font-family comes with.

Either normal, italic or oblique. Although technically there is a difference between italic and oblique this difference is small and font-families rarely include both those styles; HikoGUI will treat italic and oblique as the same.

Enumerator
normal	A font that is normal, non-italic.
italic	A font that is italic.
oblique	A font that is oblique.

plurality_mask

enum class hi::v1::plurality_mask : uint8_t

strong

A mask of plurality values that this language supports.

Enumerator
zero	The number was zero, and this means something in the current language.
one	The number was one, and this means something in the current language.
two	The number was two, and this means something in the current language.
few	The number is part of few, and this means something in the current language.
many	The number is part of many, and this means something in the current language.
other	Any other number, every language will have at least this.

plurality_value

enum class hi::v1::plurality_value : uint8_t

strong

The plurality value of a cardinal or ordinal number.

Enumerator
zero	The number was zero, and this means something in the current language.
one	The number was one, and this means something in the current language.
two	The number was two, and this means something in the current language.
few	The number is part of few, and this means something in the current language.
many	The number is part of many, and this means something in the current language.
other	Any other number, every language will have at least this.

policy

enum class hi::v1::policy

strong

The performance policy to use.

This policy is used as an argument when initializing a system to select the correct parameters to satisfy the given policy.

transform_command

enum class hi::v1::transform_command

strong

Enumerator
level	The child widget stays at the same elevation and layer.
increment	The child widget increments to the next elevation and layer.
menu_item	The child widget increments to the next elevation but layer stays the same.
overlay	The child widget increases the elevation by 20 and resets the layer.

unicode_bidi_class

enum class hi::v1::unicode_bidi_class : uint8_t

strong

Bidirectional class Unicode Standard Annex #9: https://unicode.org/reports/tr9/.

unicode_decomposition_type

enum class hi::v1::unicode_decomposition_type : uint8_t

strong

The decomposition type determines if a code-point should be decomposed canonically or for a compatibility.

unicode_line_break_class

enum class hi::v1::unicode_line_break_class : uint8_t

strong

Unicode line break class.

See "AUX14: Unicode line break algorithm" http://unicode.org/reports/tr14/

Function Documentation

apply_markup() [1/3]

hi_export constexpr gstring hi::v1::apply_markup ( gstring str, language_tag default_language = language_tag{"en-US"}, phrasing default_phrasing = phrasing::regular )

constexprnoexcept

Apply markup to a string of graphemes.

After the markup is applied the range is either the same or shorter.

Parameters

str	A grapheme string to apply the markup to.

Returns

A grapheme string with the markup applied.

apply_markup() [2/3]

template<std::input_or_output_iterator It, std::sentinel_for< It > ItEnd>
requires std::same_as<typename It::value_type, grapheme>

hi_export constexpr It hi::v1::apply_markup ( It first, ItEnd last, language_tag default_language = language_tag{"en-US"}, phrasing default_phrasing = phrasing::regular )

constexprnoexcept

Inplace-apply markup to a string of graphemes.

After the markup is applied the range is either the same or shorter.

Parameters

first	An iterator to the first grapheme.
last	An iterator beyond the last grapheme.

Returns

The new end iterator after applying the markup.

apply_markup() [3/3]

hi_export constexpr gstring hi::v1::apply_markup ( std::string_view str, language_tag default_language = language_tag{"en-US"}, phrasing default_phrasing = phrasing::regular )

constexprnoexcept

Apply markup to a string of graphemes.

After the markup is applied the range is either the same or shorter.

Parameters

str	A UTF-8 string to apply the markup to.

Returns

A grapheme string with the markup applied.

async_task() [1/2]

template<typename Func , typename... Args>
requires (is_invocable_task_v<Func, Args...>)

std::invoke_result_t< Func, Args... > hi::v1::async_task	(	Func	func,
		Args...	args )

Run a function asynchronously as a co-routine task.

Parameters

func	The function to be called.
args...	The arguments forwarded to func.

async_task() [2/2]

template<typename Func , typename... Args>
requires (not is_invocable_task_v<Func, Args...>)

task< std::invoke_result_t< Func, Args... > > hi::v1::async_task	(	Func	func,
		Args...	args )

Run a function asynchronously as a co-routine task.

Note

This will check every 15ms if the function is completed.

Parameters

func	The function to be called.
args...	The arguments forwarded to func.

atterminate()

void hi::v1::atterminate ( std::function< void()> f )

inlinenoexcept

Register functions that need to be called on std::terminate().

audio_devices()

template<audio_device_filter... Filters>

generator< audio_device & > hi::v1::audio_devices ( Filters &&... filters )

noexcept

Get audio devices matching the filter arguments.

Parameters

filters

A list of filters that the audio devices need to match with. Filters are of the types hi::audio_device_state and hi::audio_direction.

Returns

A list of audio devices matching the filters.

bezierFindTForNormalsIntersectingPoint() [1/2]

lean_vector< float > hi::v1::bezierFindTForNormalsIntersectingPoint ( point2 P1, point2 C, point2 P2, point2 P )

inlinenoexcept

Find t on the curve P1->C->P2 which is closest to P.

Used for finding the shortest distance from a point to a curve. The shortest vector from a curve to a point is a normal.

bezierFindTForNormalsIntersectingPoint() [2/2]

lean_vector< float > hi::v1::bezierFindTForNormalsIntersectingPoint ( point2 P1, point2 P2, point2 P )

inlinenoexcept

Find t on the line P1->P2 which is closest to P.

Used for finding the shortest distance from a point to a curve. The shortest vector from a curve to a point is a normal.

bezierFindX() [1/3]

lean_vector< float > hi::v1::bezierFindX ( point2 P1, point2 C, point2 P2, float y )

inlinenoexcept

Find x for y on a bezier curve. In a contour, multiple bezier curves are attached to each other on the anchor point. We don't want duplicate results when passing y that is at the same height as an anchor point. So we compare with less than to the end-anchor point to remove it from the result.

bezierFindX() [2/3]

lean_vector< float > hi::v1::bezierFindX ( point2 P1, point2 C1, point2 C2, point2 P2, float y )

inlinenoexcept

Find x for y on a bezier curve. In a contour, multiple bezier curves are attached to each other on the anchor point. We don't want duplicate results when passing y that is at the same height as an anchor point. So we compare with less than to the end-anchor point to remove it from the result.

bezierFindX() [3/3]

lean_vector< float > hi::v1::bezierFindX ( point2 P1, point2 P2, float y )

inlinenoexcept

Find x for y on a bezier curve. In a contour, multiple bezier curves are attached to each other on the anchor point. We don't want duplicate results when passing y that is at the same height as an anchor point. So we compare with less than to the end-anchor point to remove it from the result.

bezierFlatness() [1/3]

float hi::v1::bezierFlatness ( point2 P1, point2 C, point2 P2 )

inlinenoexcept

Return the flatness of a curve.

Returns

1.0 when completely flat, < 1.0 when curved.

bezierFlatness() [2/3]

float hi::v1::bezierFlatness ( point2 P1, point2 C1, point2 C2, point2 P2 )

inlinenoexcept

Return the flatness of a curve.

Returns

1.0 when completely flat, < 1.0 when curved.

bezierFlatness() [3/3]

float hi::v1::bezierFlatness ( point2 P1, point2 P2 )

inlinenoexcept

Return the flatness of a curve.

Returns

1.0 when completely flat, < 1.0 when curved.

big_to_native()

template<std::integral T>

constexpr T hi::v1::big_to_native ( T x )

constexpr

Convert an integral from big-to-native endian.

bound_check() [1/4]

hi_export constexpr bool hi::v1::bound_check ( std::floating_point auto index, std::floating_point auto lower, std::floating_point auto upper )

constexprnoexcept

Check if an floating point value is between the lower (inclusive) and upper (inclusive).

Note

It is undefined behavior when upper is lower than lower.

Parameters

index	The index to check.
lower	The lower bound.
upper	The upper bound.

Returns

true If index is greater or equal to lower bound and index is less than upper bound.

bound_check() [2/4]

hi_export constexpr bool hi::v1::bound_check ( std::integral auto index, bound_check_range_helper auto && range )

constexprnoexcept

Check if an index is within a range.

Parameters

index	The index to check.
range	The range object, such as a vector or array, which has a std::ranges::size().

Returns

true If index natural and below the size of the array.

bound_check() [3/4]

hi_export constexpr bool hi::v1::bound_check ( std::integral auto index, std::integral auto lower, std::integral auto upper )

constexprnoexcept

Check if an index is between the lower (inclusive) and upper (exclusive).

Note

It is undefined behavior when upper is lower than lower.

Parameters

index	The index to check.
lower	The lower bound.
upper	The upper bound.

Returns

true If index is greater or equal to lower bound and index is less than upper bound.

bound_check() [4/4]

hi_export constexpr bool hi::v1::bound_check ( std::integral auto index, std::integral auto upper )

constexprnoexcept

Check if an index is less than the bound.

Parameters

index	The index to check.
upper	The upper bound.

Returns

true If index is less than the upper bound.

cached_current_zone()

std::chrono::time_zone const & hi::v1::cached_current_zone ( )

inlinenoexcept

Cached current time zone.

std::chrono::current_zone() is really slow, this keeps a cache.

The cached current time zone is not updated when the time zone is modified on the system.

can_narrow_cast() [1/2]

template<typename Out , std::same_as< Out > In>

constexpr bool hi::v1::can_narrow_cast ( In const & rhs )

constexprnoexcept

Check if a value can be casted to a narrow type.

Template Parameters

Out	The output type.

Parameters

rhs	The input value to cast.

Returns

true if the value can be casted.

can_narrow_cast() [2/2]

template<std::floating_point Out, std::floating_point In>
requires (not std::same_as<In, Out>)

constexpr bool hi::v1::can_narrow_cast ( In const & rhs )

constexprnoexcept

Check if a value can be casted to a narrow type.

Template Parameters

Out	The output type.

Parameters

rhs	The input value to cast.

Returns

true if the value can be casted.

cancelable_async_task()

template<typename Func , typename... Args>

auto hi::v1::cancelable_async_task	(	Func	func,
		std::stop_token	stop_token,
		::hi::progress_token	progress_token,
		Args...	args )

Run a function asynchronously as a co-routine task.

If the function func accepts the std::stop_token and/or hi::progress_token then those arguments are passed to the function.

Note

This will call async_task().

Parameters

func	The function to be called.
stop_token	The stop token to optionally pass to the func.
progress_token	The progress token to optionally pass to the func.
args...	The arguments forwarded to func.

Returns

A hi::task object for the running func.

cardinal_plural() [1/2]

constexpr plurality hi::v1::cardinal_plural ( language_tag language, std::integral auto n )

constexprnoexcept

Get plural information of a number in a given language.

Parameters

language	The language.
n	The number to know the plurality for.

Returns

plurality information.

cardinal_plural() [2/2]

constexpr size_t hi::v1::cardinal_plural ( language_tag language, std::integral auto n, size_t size )

constexprnoexcept

Get an index into message plural-variants for a given number.

Parameters

language	The language the messages are in.
n	The number to format in the message.
size	The number of message plural-variants. Must be larger than 0.

Returns

An index into the plural-variants, if the number of variants is less than plurality suggest then zero is returned.

char_cast() [1/2]

template<std::integral Out, std::integral In>

constexpr Out hi::v1::char_cast ( In rhs )

constexprnoexcept

Cast a character.

Both the input and output types are interpreted as unsigned values, even if they are signed values. For example char may be either signed or unsigned, but you have to treat those as unsigned values.

Note

rhs value after casting, must fit in the output type.

Parameters

rhs	The value of the character.

Returns

The casted value.

char_cast() [2/2]

template<std::integral Out>

constexpr Out hi::v1::char_cast ( std::byte rhs )

constexprnoexcept

Cast a character.

Both the input and output types are interpreted as unsigned values, even if they are signed values. For example char may be either signed or unsigned, but you have to treat those as unsigned values.

Note

rhs value after casting, must fit in the output type.

Parameters

rhs	The value of the character.

Returns

The casted value.

compare_store() [1/2]

template<typename T , typename U >

bool hi::v1::compare_store ( std::atomic< T > & lhs, U && rhs )

noexcept

Compare then store if there was a change.

Note

This atomic version does an lhs.exchange(rhs, std::memory_order_relaxed)

Returns

true if a store was executed.

compare_store() [2/2]

template<typename T , typename U >

bool hi::v1::compare_store ( T & lhs, U && rhs )

noexcept

Compare then store if there was a change.

Returns

true if a store was executed.

cpu_features()

cpu_feature_mask hi::v1::cpu_features ( )

inlinenoexcept

Get a list of features of the current CPU.

cpu_id()

cpu_id_result hi::v1::cpu_id ( uint32_t leaf_id, uint32_t index = 0 )

inlinenoexcept

A generic x86 cpu-id instruction.

Parameters

leaf_id	The leaf of the cpu-id to query
index	The index inside the leaf

Returns

aex, ebx, ecx, edx

delete_user_setting()

std::error_code hi::v1::delete_user_setting ( std::string_view key )

inlinenoexcept

Delete a user-setting for the application.

Keys starting with two consequitive underscores are reserved by the HikoGUI library.

Parameters

key	A key for the user setting.

Exceptions

std::invalid_argument	When the key is not valid.
std::out_of_range	if the value in the default does not fit in the return value.

delete_user_settings()

std::error_code hi::v1::delete_user_settings ( )

inlinenoexcept

Delete all user-setting for the application.

dialog()

hi_export std::expected< dialog_button, std::error_code > hi::v1::dialog ( std::string_view title, std::string_view text, dialog_button_mask button_mask = dialog_button_mask::ok )

inlinenoexcept

Display a modal dialog.

You should never display a modal dialog unless it is absolutely necessary for the user to respond right now, or on a catastrophic failure.

Parameters

title	The title of the dialog window.
text	The text to display in the dialog window.
button_mask	The set of buttons to show in the dialog.

Returns

The button that was pressed by the user.

down_cast() [1/3]

template<typename Out , typename In >

constexpr Out hi::v1::down_cast ( In & rhs )

constexprnoexcept

Cast a reference to a class to its derived class or itself.

Note

It is undefined behaviour if the argument is not of type Out.

Parameters

rhs	A reference to an object that is of type Out.

Returns

A reference to the same object with a new type.

down_cast() [2/3]

template<typename Out , typename In >

constexpr Out hi::v1::down_cast ( In * rhs )

constexprnoexcept

Cast a pointer to a class to its derived class or itself.

Note

It is undefined behavior if the argument is not of type Out.

Parameters

rhs	A pointer to an object that is of type Out. Or a nullptr which will be passed through.

Returns

A pointer to the same object with a new type.

down_cast() [3/3]

template<typename Out >
requires std::is_pointer_v<Out>

constexpr Out hi::v1::down_cast ( nullptr_t )

constexprnoexcept

Cast a pointer to a class to its derived class or itself.

Returns

A pointer to the same object with a new type.

dsp_mul() [1/2]

constexpr void hi::v1::dsp_mul ( float const * a, float b, float * o, size_t n )

constexprnoexcept

Multiply a float array with a scalar into another array.

Parameters

a	A pointer the first array.
b	The second file.
o	A pointer the output array.
n	Number of elements in each array.

dsp_mul() [2/2]

constexpr void hi::v1::dsp_mul ( float const * a, float const * b, float * o, size_t n )

constexprnoexcept

Multiply two float arrays into another array.

Parameters

a	A pointer the first array.
b	A pointer the second array.
o	A pointer the output array.
n	Number of elements in each array.

dsp_mul_acc() [1/2]

constexpr void hi::v1::dsp_mul_acc ( float const * a, float b, float * o, size_t n )

constexprnoexcept

Multiply a float array with a scalar and accumulate into another array.

Parameters

a	A pointer the first array.
b	The second file.
o	A pointer the output array.
n	Number of elements in each array.

dsp_mul_acc() [2/2]

constexpr void hi::v1::dsp_mul_acc ( float const * a, float const * b, float * o, size_t n )

constexprnoexcept

Multiply two float arrays and accumulate into another array.

Parameters

a	A pointer the first array.
b	A pointer the second array.
o	A pointer the output array.
n	Number of elements in each array.

enable_debugger()

void hi::v1::enable_debugger ( )

inlinenoexcept

Enable the JIT debugger to be attached.

Normally the JIT debugger will already work. By using this function hi_assert_break() and hi_debug_break() will improve.

• hi_assert_break() will call std::terminate() for a better error message and stack-trace.
• hi_debug_break() will continue if no debugger is available or cancelled.

fast_mul()

constexpr aarectangle hi::v1::fast_mul ( matrix2 const & lhs, aarectangle const & rhs )

constexprnoexcept

Transform an axis-aligned rectangle without rotation by the matrix.

Note

It is undefined behaviour to perspective, rotate or skew transform a rectangle

Parameters

rhs	The axis-aligned rectangle to be transformed.

Returns

The transformed rectangle

fill() [1/3]

hi_export void hi::v1::fill ( pixmap_span< sdf_r8 > dst, graphic_path const & path )

inlinenoexcept

Fill a signed distance field image from the given path.

Parameters

dst	An signed-distance-field which show distance toward the closest curve
path	A path.

fill() [2/3]

constexpr void hi::v1::fill ( pixmap_span< sdf_r8 > image, std::vector< bezier_curve > const & curves )

constexprnoexcept

Fill a signed distance field image from the given contour.

Parameters

image	An signed-distance-field which show distance toward the closest curve
curves	All curves of path, in no particular order.

fill() [3/3]

constexpr void hi::v1::fill ( pixmap_span< uint8_t > image, std::vector< bezier_curve > const & curves )

constexprnoexcept

Fill a linear gray scale image by filling a curve with anti-aliasing.

Parameters

image	An alpha-channel image to make opaque where pixel is inside the contours
curves	All curves of path, in no particular order.

from_string() [1/2]

template<std::floating_point T>

T hi::v1::from_string

(

std::string_view

str

)

Convert a string to an floating point.

This function bypasses std::locale

Template Parameters

T	The integer type.

Parameters

str	The string is an integer.

Returns

The integer converted from a string.

from_string() [2/2]

template<std::integral T>

T hi::v1::from_string	(	std::string_view	str,
		int	base = 10 )

Convert a string to an integer.

This function bypasses std::locale

Template Parameters

T	The integer type.

Parameters

str	The string is an integer.
base	The base radix of the string encoded integer.

Returns

The integer converted from a string.

full_mul()

constexpr rectangle hi::v1::full_mul ( matrix2 const & lhs, aarectangle const & rhs )

constexprnoexcept

Transform an axis-aligned rectangle without rotation by the matrix.

Note

It is undefined behaviour to perspective, rotate or skew transform a rectangle

Parameters

rhs	The axis-aligned rectangle to be transformed.

Returns

The transformed rectangle

get_atlas_position()

point3 hi::v1::get_atlas_position ( std::size_t page )

inlinenoexcept

Get the coordinate in the atlas from a page index.

Parameters

page	number in the atlas

Returns

x, y pixel coordinate in an atlasTexture and z the atlasTextureIndex. Inside the border.

get_bit()

bool hi::v1::get_bit ( std::span< std::byte const > buffer, std::size_t & index )

inlinenoexcept

Read a single bit from span of bytes Bits are ordered LSB first.

Parameters

buffer	The buffer of bytes to extract the bit from.
index	The index of the bit in the byte span.

get_bits()

std::size_t hi::v1::get_bits ( std::span< std::byte const > buffer, std::size_t & index, std::size_t length )

inlinenoexcept

Read a bits from of span of bytes Bits are ordered LSB first.

Bits are copied as if the byte array is layed out from right to left, example:

7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | byte 1 | byte 0 | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ : : index=6 +-+-+-+-+-+ length=5 | Return | +-+-+-+-+-+ 4 3 2 1 0

Parameters

buffer	The buffer of bytes to extract bits from.
index	The index of the bit in the byte span.
length	the number of bits to return.

get_last_error_message() [1/2]

hi_export std::string hi::v1::get_last_error_message ( )

inline

Get the OS error message from the last error received on this thread.

Returns

A formatted message.

get_last_error_message() [2/2]

hi_export std::string hi::v1::get_last_error_message ( uint32_t error_code )

inline

Get the error message from an error code.

Parameters

error_code

The error code returned by an os call.

Returns

A formatted message.

get_staging_position()

point2 hi::v1::get_staging_position ( const gfx_pipeline_image::paged_image & image, std::size_t page_index )

inline

Get the position in the staging texture map to copy from.

Parameters

image	The image
page_index	The index of the page of the image.

Returns

The position into the staging map.

get_user_setting()

template<typename T >

std::expected< T, std::error_code > hi::v1::get_user_setting ( std::string_view key )

inlinedeletenoexcept

Get a user-setting for the application.

Keys starting with two consequitive underscores are reserved by the HikoGUI library.

Parameters

key	A key for the user setting.

Returns

The value from the user-settings.

Return values

std::nullopt

The key was not found in the user-settings.

Exceptions

std::invalid_argument	When the key is not valid.
std::out_of_range	if the value in the default does not fit in the return value.

get_user_setting_string()

std::expected< std::string, std::error_code > hi::v1::get_user_setting_string ( std::string_view name )

inlinenoexcept

Returns

A string value, or std::errc::file_not_found if entry not found, or other error.

getExtrapolatedIntersectionPoint()

std::optional< point2 > hi::v1::getExtrapolatedIntersectionPoint ( point2 A1, point2 A2, point2 B1, point2 B2 )

inlinenoexcept

Find the intersect points between two line segments.

getIntersectionPoint()

std::optional< point2 > hi::v1::getIntersectionPoint ( point2 A1, point2 A2, point2 B1, point2 B2 )

inlinenoexcept

Find the intersect points between two line segments.

getline()

template<typename CharT , typename Traits = std::char_traits<CharT>>

std::basic_string< CharT, Traits > hi::v1::getline ( std::basic_istream< CharT, Traits > & in, size_t max_size )

inlinenoexcept

Get a line from an input string, upto a maximum size.

Postcondition

The input stream is read upto and including the line termination.

Parameters

in	The input stream.
max_size	The maximum number of characters to read.

Returns

A string containing a line of characters, excluding the line termination.

half_to_float_generic()

constexpr float hi::v1::half_to_float_generic ( uint16_t u16 )

constexprnoexcept

Convert half to float.

This function is used

has_aes()

bool hi::v1::has_aes ( )

inlinenoexcept

This CPU has the AES-NI block cypher instruction set.

has_avx()

bool hi::v1::has_avx ( )

inlinenoexcept

This CPU has the AVX instruction set.

has_avx2()

bool hi::v1::has_avx2 ( )

inlinenoexcept

This CPU has the AVX2 instruction set.

has_avx512bw()

bool hi::v1::has_avx512bw ( )

inlinenoexcept

This CPU has the AVX512BW instruction set.

has_avx512cd()

bool hi::v1::has_avx512cd ( )

inlinenoexcept

This CPU has the AVX512CD instruction set.

has_avx512dq()

bool hi::v1::has_avx512dq ( )

inlinenoexcept

This CPU has the AVX512DQ instruction set.

has_avx512er()

bool hi::v1::has_avx512er ( )

inlinenoexcept

This CPU has the AVX512ER instruction set.

has_avx512f()

bool hi::v1::has_avx512f ( )

inlinenoexcept

This CPU has the AVX512F instruction set.

has_avx512pf()

bool hi::v1::has_avx512pf ( )

inlinenoexcept

This CPU has the AVX512PF instruction set.

has_avx512vl()

bool hi::v1::has_avx512vl ( )

inlinenoexcept

This CPU has the AVX512VL instruction set.

has_bmi1()

bool hi::v1::has_bmi1 ( )

inlinenoexcept

This CPU has the BMI1 instruction set.

has_bmi2()

bool hi::v1::has_bmi2 ( )

inlinenoexcept

This CPU has the BMI2 instruction set.

has_cmov()

bool hi::v1::has_cmov ( )

inlinenoexcept

This CPU has the CMOV (Conditional Move) instruction.

has_cx16()

bool hi::v1::has_cx16 ( )

inlinenoexcept

This CPU has the CMPXCG16 (Compare and exchange 16 bytes) instruction.

has_cx8()

bool hi::v1::has_cx8 ( )

inlinenoexcept

This CPU has the CMPXCG8 (Compare and exchange 8 bytes) instruction.

has_f16c()

bool hi::v1::has_f16c ( )

inlinenoexcept

This CPU has float-16 conversion instructions.

has_fma()

bool hi::v1::has_fma ( )

inlinenoexcept

This CPU has fused-multiply-accumulate instructions.

has_fpu()

bool hi::v1::has_fpu ( )

inlinenoexcept

This CPU has a floating-point co-processor.

has_fxsr()

bool hi::v1::has_fxsr ( )

inlinenoexcept

This CPU has the fxsave instruction.

has_lahf()

bool hi::v1::has_lahf ( )

inlinenoexcept

This CPU has the LAHF and SAHF instructions.

has_lzcnt()

bool hi::v1::has_lzcnt ( )

inlinenoexcept

This CPU has the LZCNT instruction.

has_mmx()

bool hi::v1::has_mmx ( )

inlinenoexcept

This CPU has the MMX instruction set.

has_movbe()

bool hi::v1::has_movbe ( )

inlinenoexcept

This CPU has the MOVBE (Move Big Endian) instruction.

has_osfxsr()

bool hi::v1::has_osfxsr ( )

inlinenoexcept

This operating system uses the FXSAVE instruction.

has_osxsave()

bool hi::v1::has_osxsave ( )

inlinenoexcept

This operating system uses the SXSAVE instruction.

has_pclmul()

bool hi::v1::has_pclmul ( )

inlinenoexcept

This CPU has the PCLMUL carry-less multiply instruction.

has_popcnt()

bool hi::v1::has_popcnt ( )

inlinenoexcept

This CPU has the POPCNT instructions.

has_rdrnd()

bool hi::v1::has_rdrnd ( )

inlinenoexcept

This CPU has the RDRAND on-chip random number generator instruction.

has_rdseed()

bool hi::v1::has_rdseed ( )

inlinenoexcept

This CPU has the RDSEED access to the conditioned on-chip entropy.

has_sce()

bool hi::v1::has_sce ( )

inlinenoexcept

This operating system uses the SYSCALL instruction.

has_sha()

bool hi::v1::has_sha ( )

inlinenoexcept

This CPU has the SHA cryptographical secure hash instruction set.

has_sse()

bool hi::v1::has_sse ( )

inlinenoexcept

This CPU has the SSE instruction set.

has_sse2()

bool hi::v1::has_sse2 ( )

inlinenoexcept

This CPU has the SSE2 instruction set.

has_sse3()

bool hi::v1::has_sse3 ( )

inlinenoexcept

This CPU has the SSE3 instruction set.

has_sse4_1()

bool hi::v1::has_sse4_1 ( )

inlinenoexcept

This CPU has the SSE4.1 instruction set.

has_sse4_2()

bool hi::v1::has_sse4_2 ( )

inlinenoexcept

This CPU has the SSE4.2 instruction set.

has_ssse3()

bool hi::v1::has_ssse3 ( )

inlinenoexcept

This CPU has the SSSE3 instruction set.

has_x86_64_v1()

bool hi::v1::has_x86_64_v1 ( )

inlinenoexcept

This CPU has all the features for x86-64-v1 microarchitecture level.

has_x86_64_v2()

bool hi::v1::has_x86_64_v2 ( )

inlinenoexcept

This CPU has all the features for x86-64-v2 microarchitecture level.

has_x86_64_v3()

bool hi::v1::has_x86_64_v3 ( )

inlinenoexcept

This CPU has all the features for x86-64-v3 microarchitecture level.

has_x86_64_v4()

bool hi::v1::has_x86_64_v4 ( )

inlinenoexcept

This CPU has all the features for x86-64-v4 microarchitecture level.

high_bit_cast()

template<std::unsigned_integral OutType, std::unsigned_integral InType>

constexpr OutType hi::v1::high_bit_cast ( InType value )

constexprnoexcept

Return the upper half of the input value.

inflate()

hi_export bstring hi::v1::inflate ( std::span< std::byte const > bytes, std::size_t & offset, std::size_t max_size = 0x0100'0000 )

inline

Inflate compressed data using the deflate algorithm bytes should include at least 32 bit of trailer, for the overflow check which will slightly overrun the actual compressed data for performance reasons.

• gzip has a CRC32+ISIZE trailer. Since gzip has no end-of-segment indicator, we need to include the trailer in the byte array passed to inflate anyway.
• zlib has a 32 bit check value. Since zlib has no end-of-segment indicator, we need to include the trailer in the byte array passed to inflate anyway.
• png IDAT chunks include the full zlib-format, including the 32 bit check value.

initialize()

void hi::v1::initialize ( )

inlinenoexcept

Initialize base functionality of HikoGUI.

This function is called as early in the life of an application as possible. This function is called implicitly by:

• Every function from hikogui.metadata.application_metadata.
• When using the hikogui.crt.

is_integral_value()

template<std::integral T>

constexpr bool hi::v1::is_integral_value ( T const & rhs )

constexprnoexcept

Check if a value is integral.

Parameters

rhs	A integral value.

Returns

Always true.

Parameters

rhs	A floating point value.

Returns

True if the floating point value is an integer.

little_to_native()

template<std::integral T>

constexpr T hi::v1::little_to_native ( T x )

constexpr

Convert an integral from little-to-native endian.

load() [1/2]

template<std::integral Out, std::endian Endian = std::endian::native, typename In >

constexpr Out hi::v1::load ( In const * src )

constexprnoexcept

Unaligned Load of a numeric value from an array.

Template Parameters

Out	The type of the integer or floating point value to load.
Endian	The endianness of the data.

Parameters

src	A pointer to byte-like array.

Returns

The numeric value after endian conversion.

load() [2/2]

template<std::integral T, std::endian Endian = std::endian::native>

T hi::v1::load ( void const * src )

inlinenoexcept

Unaligned Load of a numeric value from a byte-like array.

Template Parameters

T	The type of the integer or floating point value to load.
Endian	The endianness of the data.

Parameters

src	A pointer to memory.

Returns

The numeric value after endian conversion.

load_be() [1/3]

template<std::integral T, byte_like B>

constexpr T hi::v1::load_be ( B const * src )

constexprnoexcept

Unaligned load of a numeric value encoded in byte-endian format.

Template Parameters

T	The type of the integer or floating point value to load.

Parameters

src	A pointer to a byte like buffer.

Returns

The numeric value after endian conversion.

load_be() [2/3]

template<std::integral T>

constexpr T hi::v1::load_be ( T const * src )

constexprnoexcept

Load of a numeric value encoded in big-endian format.

Template Parameters

T	The type of the integer or floating point value to load.

Parameters

src	A pointer to a byte like memory.

Returns

The numeric value after endian conversion.

load_be() [3/3]

template<std::integral T>

T hi::v1::load_be ( void const * src )

inlinenoexcept

Unaligned load of a numeric value encoded in byte-endian format.

Template Parameters

T	The type of the integer or floating point value to load.

Parameters

src	A pointer to memory.

Returns

The numeric value after endian conversion.

load_bits_be()

template<unsigned int NumBits, byte_like B>

constexpr auto hi::v1::load_bits_be ( B const * src, size_t bit_index )

constexprnoexcept

Unaligned load bits from a big-endian buffer at a bit-offset.

To create the packed byte array from values.

• Shift each value into a large integer object.
• Shift by an additional 0 to 7 bits to align the first value to the MSB of a byte.
• Shift by an additional 128 bits for the over-read extension.
• Make a byte buffer with how many bits where added to the large integer.
• Reverse iterate over the bytes in the buffer and shift out bytes from the large integer.

Note

The src buffer should be extended by 128-bits to allow over-reading beyond the end of the data.

Template Parameters

NumBits

the number of bits to read.

Parameters

src	A byte-like buffer to load bits from.
bit_index	The bit offset into the buffer. 0 is the 7th bit of the 1st byte in src.

Returns

The loaded bits in the least-signigicant-bits of an unsigned integer type that can hold the bits requested.

load_le() [1/3]

template<std::integral T, byte_like B>

constexpr T hi::v1::load_le ( B const * src )

constexprnoexcept

Unaligned load of a numeric value encoded in little-endian format.

Template Parameters

T	The type of the integer or floating point value to load.

Parameters

src	A pointer to a byte like memory.

Returns

The numeric value after endian conversion.

load_le() [2/3]

template<std::integral T>

constexpr T hi::v1::load_le ( T const * src )

constexprnoexcept

Load of a numeric value encoded in little-endian format.

Template Parameters

T	The type of the integer or floating point value to load.

Parameters

src	A pointer to the numeric value.

Returns

The numeric value after endian conversion.

load_le() [3/3]

template<std::integral T>

T hi::v1::load_le ( void const * src )

inlinenoexcept

Unaligned load of a numeric value encoded in little-endian format.

Template Parameters

T	The type of the integer or floating point value to load.

Parameters

src	A pointer to memory.

Returns

The numeric value after endian conversion.

low_bit_cast()

template<std::unsigned_integral OutType, std::unsigned_integral InType>

constexpr OutType hi::v1::low_bit_cast ( InType value )

constexprnoexcept

Return the low half of the input value.

make_cstr() [1/2]

hi_export char * hi::v1::make_cstr ( char const * c_str, std::size_t size = -1 )

inlinenoexcept

Copy a std::string to new memory.

The caller will have to delete [] return value.

make_cstr() [2/2]

hi_export char * hi::v1::make_cstr ( std::string const & s )

inlinenoexcept

Copy a std::string to new memory.

The caller will have to delete [] return value.

make_lookahead_iterator() [1/2]

template<size_t LookaheadCount, typename It , std::sentinel_for< It > ItEnd = std::default_sentinel_t>

auto hi::v1::make_lookahead_iterator ( It first, ItEnd last = std::default_sentinel )

noexcept

Create a lookahead_iterator from a forward iterator.

Template Parameters

LookaheadCount

Number of items to lookahead, including the iterator itself. Must be a power-of-two.

Parameters

first	A forward iterator.
last	A sentinel or end-iterator.

Returns

A lookahead iterator.

make_lookahead_iterator() [2/2]

template<size_t LookaheadCount, std::ranges::range Range>

auto hi::v1::make_lookahead_iterator ( Range const & range )

noexcept

Create a lookahead_iterator from a forward iterator.

Template Parameters

LookaheadCount

Number of items to lookahead, including the iterator itself. Must be a power-of-two.

Parameters

first	A forward iterator.
last	A sentinel or end-iterator.

Returns

A lookahead iterator.

makeContourFromPoints()

constexpr std::vector< bezier_curve > hi::v1::makeContourFromPoints ( std::vector< bezier_point >::const_iterator begin, std::vector< bezier_point >::const_iterator end )

constexprnoexcept

Make a contour of Bezier curves from a list of points.

The contour is also colorized to be used for creating multichannel-signed-distance-fields.

Parameters

first	Iterator to the first point in a list
last	Iterator one beyond the last point in a list

makeInverseContour()

constexpr std::vector< bezier_curve > hi::v1::makeInverseContour ( std::vector< bezier_curve > const & contour )

constexprnoexcept

Inverse a contour.

Reverse the direction of the whole contour, turning it inside out. This is useful for creating a stroke, by inverting the inner offset contour.

Parameters

contour

contour to reverse.

Returns

the reversed contour.

makeParallelContour()

constexpr std::vector< bezier_curve > hi::v1::makeParallelContour ( std::vector< bezier_curve > const & contour, float offset, hi::line_join_style line_join_style, float tolerance )

constexprnoexcept

Make a contour of Bezier curves from another contour of Bezier curves at a offset. Make a new contour made out of line-segments offset from the original curve. After offsetting the line segment the line segments are properly cut or extended to cover all intersections and gaps.

Parameters

contour	a list of bezier curve segments forming a closed contour.
offset	positive means the parallel contour will be on the starboard side of the given contour.
line_join_style	how the gaps between line segments are joined together.
tolerance	to how curved the new contour should look.

merge_bit_cast()

template<std::unsigned_integral OutType, std::unsigned_integral InType>

constexpr OutType hi::v1::merge_bit_cast ( InType hi, InType lo )

constexprnoexcept

Return the upper half of the input value.

mirror() [1/2]

constexpr horizontal_alignment hi::v1::mirror ( horizontal_alignment const & rhs )

constexprnoexcept

Mirror the horizontal alignment.

mirror() [2/2]

constexpr horizontal_alignment hi::v1::mirror ( horizontal_alignment const & rhs, bool left_to_right )

constexprnoexcept

Mirror the horizontal alignment.

narrow_cast() [1/2]

template<typename Out , std::same_as< Out > In>

constexpr Out hi::v1::narrow_cast ( In const & rhs )

constexprnoexcept

Cast numeric values without loss of precision.

Note

It is undefined behavior to cast a value which will cause a loss of precision.

Template Parameters

Out	The numeric type to cast to
In	The numeric type to cast from

Parameters

rhs	The value to cast.

Returns

The value casted to a different type without loss of precision.

narrow_cast() [2/2]

template<std::floating_point Out, std::floating_point In>
requires (not std::same_as<In, Out>)

constexpr Out hi::v1::narrow_cast ( In const & rhs )

constexprnoexcept

Cast numeric values without loss of precision.

Note

It is undefined behavior to cast a value which will cause a loss of precision.

Template Parameters

Out	The numeric type to cast to
In	The numeric type to cast from

Parameters

rhs	The value to cast.

Returns

The value casted to a different type without loss of precision.

native_to_big()

template<std::integral T>

constexpr T hi::v1::native_to_big ( T x )

constexpr

Convert an integral from native-to-big endian.

native_to_little()

template<std::integral T>

constexpr T hi::v1::native_to_little ( T x )

constexpr

Convert an integral from native-to-little endian.

operator*() [1/16]

constexpr matrix2 hi::v1::operator* ( matrix2 const & lhs, matrix2 const & rhs )

constexprnoexcept

Matrix/Matrix multiplication.

operator*() [2/16]

constexpr rectangle hi::v1::operator* ( matrix2 const & lhs, aarectangle const & rhs )

constexprnoexcept

Transform an axis-aligned rectangle without rotation by the matrix.

Note

It is undefined behaviour to perspective, rotate or skew transform a rectangle

Parameters

rhs	The axis-aligned rectangle to be transformed.

Returns

The transformed rectangle

operator*() [3/16]

float hi::v1::operator* ( matrix2 const & lhs, float const & rhs )

inlinenoexcept

Transform a float by the scaling factor of the matrix.

The floating point number is transformed into a vector laying on the x-axis, then transformed, then extracting the hypot from it.

operator*() [4/16]

constexpr point2 hi::v1::operator* ( matrix2 const & lhs, point2 const & rhs )

constexprnoexcept

Transform a point by the matrix.

Parameters

rhs	The point to be transformed.

Returns

The transformed point.

operator*() [5/16]

constexpr vector2 hi::v1::operator* ( matrix2 const & lhs, vector2 const & rhs )

constexprnoexcept

Transform a vector by the matrix.

Vectors will not be translated.

Parameters

rhs	The vector to be transformed.

Returns

The transformed vector.

operator*() [6/16]

constexpr matrix3 hi::v1::operator* ( matrix3 const & lhs, matrix3 const & rhs )

constexprnoexcept

Matrix/Matrix multiplication.

operator*() [7/16]

constexpr corner_radii hi::v1::operator* ( matrix3 const & lhs, corner_radii const & rhs )

constexprnoexcept

Transform a float by the scaling factor of the matrix.

The floating point number is transformed into a vector laying on the x-axis, then transformed, then extracting the hypot from it.

operator*() [8/16]

float hi::v1::operator* ( matrix3 const & lhs, float const & rhs )

inlinenoexcept

Transform a float by the scaling factor of the matrix.

The floating point number is transformed into a vector laying on the x-axis, then transformed, then extracting the hypot from it.

operator*() [9/16]

constexpr point3 hi::v1::operator* ( matrix3 const & lhs, point3 const & rhs )

constexprnoexcept

Transform a point by the matrix.

Parameters

rhs	The point to be transformed.

Returns

The transformed point.

operator*() [10/16]

constexpr vector3 hi::v1::operator* ( matrix3 const & lhs, vector3 const & rhs )

constexprnoexcept

Transform a vector by the matrix.

Vectors will not be translated.

Parameters

rhs	The vector to be transformed.

Returns

The transformed vector.

operator*() [11/16]

constexpr aarectangle hi::v1::operator* ( scale2 const & lhs, aarectangle const & rhs )

constexprnoexcept

Scale a rectangle around it's center.

operator*() [12/16]

constexpr rectangle hi::v1::operator* ( transformer auto const & lhs, aarectangle const & rhs )

constexprnoexcept

Transform an axis-aligned rectangle by the matrix.

After transformation it can not be guaranteed that an axis-aligned rectangle remained aligned to axis, therefor a normal rectangle is returned

Note

It is undefined behavior to perspective transform a rectangle

Parameters

rhs	The axis-aligned rectangle to be transformed.

Returns

The transformed rectangle

operator*() [13/16]

constexpr circle hi::v1::operator* ( transformer auto const & lhs, circle const & rhs )

constexprnoexcept

Transform a circle by the matrix.

Parameters

rhs	The circle to be transformed.

Returns

The transformed circle

operator*() [14/16]

constexpr line_segment hi::v1::operator* ( transformer auto const & lhs, line_segment const & rhs )

constexprnoexcept

Transform a line-segment by the matrix.

Parameters

rhs	The line-segment to be transformed.

Returns

The transformed line-segment

operator*() [15/16]

constexpr quad hi::v1::operator* ( transformer auto const & lhs, quad const & rhs )

constexprnoexcept

Transform a quad by the matrix.

Parameters

rhs	The quad to be transformed.

Returns

The transformed quad

operator*() [16/16]

constexpr rectangle hi::v1::operator* ( transformer auto const & lhs, rectangle const & rhs )

constexprnoexcept

Transform a rectangle by the matrix.

Note

It is undefined behavior to perspective transform a rectangle

Parameters

rhs	The rectangle to be transformed.

Returns

The transformed rectangle

operator*=()

template<typename Lhs , transformer Rhs>
requires requires(Lhs& a, Rhs const& b) { a = b * a; }

constexpr Lhs & hi::v1::operator*= ( Lhs & lhs, Rhs const & rhs )

constexprnoexcept

Inplace geometric translation.

Parameters

lhs	A geometry shape of some kind.
rhs	A geometry transformation of some kind.

Returns

A reference to the modified lhs.

operator|() [1/3]

constexpr alignment hi::v1::operator| ( horizontal_alignment lhs, vertical_alignment rhs )

constexprnoexcept

Combine vertical and horizontal alignment.

Parameters

lhs	A text alignment.
rhs	A vertical alignment.

Returns

A combined vertical and horizontal alignment.

operator|() [2/3]

constexpr plurality_mask hi::v1::operator| ( plurality_mask const & lhs, plurality_mask const & rhs )

constexprnoexcept

Or plurality masks together.

operator|() [3/3]

constexpr alignment hi::v1::operator| ( vertical_alignment lhs, horizontal_alignment rhs )

constexprnoexcept

Combine vertical and horizontal alignment.

Parameters

lhs	A text alignment.
rhs	A vertical alignment.

Returns

A combined vertical and horizontal alignment.

otype_glyf_get_bounding_box()

aarectangle hi::v1::otype_glyf_get_bounding_box ( std::span< std::byte const > bytes, float em_scale )

inline

Get the bounding box of a simple glyph.

Note

Only call this function when otype_glyf_is_compound() == false.

otype_glyf_get_compound()

generator< otype_glyf_component > hi::v1::otype_glyf_get_compound ( std::span< std::byte const > bytes, float em_scale )

inline

Get the components of a compound glyph.

Note

Only call this function when otype_glyf_is_compound() == true.

otype_glyf_get_path()

graphic_path hi::v1::otype_glyf_get_path ( std::span< std::byte const > bytes, float em_scale )

inline

Get the graphic-path of a simple glyph.

Note

Only call this function when otype_glyf_is_compound() == false.

otype_glyf_is_compound()

bool hi::v1::otype_glyf_is_compound ( std::span< std::byte const > bytes )

inline

Check if this glyph is a compound or simple glyph.

otype_kern_v0_find()

vector2 hi::v1::otype_kern_v0_find ( std::span< std::byte const > bytes, glyph_id first_glyph_id, glyph_id second_glyph_id, float em_scale )

inline

'kern' version 0 find.

'kern' version 0 is used by Microsoft and is not in use anymore by Apple. However it is part of open-type.

otype_name_search()

std::optional< std::string > hi::v1::otype_name_search ( std::span< std::byte const > bytes, uint16_t name_id, language_tag language = language_tag{"en"} )

inline

Get a name from the name table.

Parameters

bytes	The bytes of the name table.
name_id	The name to find a string for.
language	The language to find the string for (default "en").

Returns

The string of the name was found, or std::nullopt if not found.

parse_cmake_install()

std::optional< cmake_install > hi::v1::parse_cmake_install ( std::filesystem::path path )

inlinenoexcept

Parse a cmake_install.cmake file.

Parameters

path	The path to the cmake_install.cmake file.

Returns

The path to the source dir

Return values

std::nullopt

if the file does not exist, or could not be parsed, or the source-dir does not exist.

recursive_iterator_begin() [1/2]

template<typename Container >

constexpr auto hi::v1::recursive_iterator_begin ( Container & rhs )

constexprnoexcept

Get a recursive iterator from the begin of a recursive container.

recursive_iterator_begin() [2/2]

template<typename Container >

constexpr auto hi::v1::recursive_iterator_begin ( Container const & rhs )

constexprnoexcept

Get a recursive iterator from the begin of a recursive container.

recursive_iterator_end() [1/2]

template<typename Container >

constexpr auto hi::v1::recursive_iterator_end ( Container & rhs )

constexprnoexcept

Get a recursive iterator from one beyond the end of a recursive container.

recursive_iterator_end() [2/2]

template<typename Container >

constexpr auto hi::v1::recursive_iterator_end ( Container const & rhs )

constexprnoexcept

Get a recursive iterator from one beyond the end of a recursive container.

round()

template<typename FontSizeT , typename ByT >

au::Quantity< PixelsPerEm, std::common_type_t< FontSizeT, ByT > > hi::v1::round	(	au::Quantity< PixelsPerEm, FontSizeT >	font_size,
		au::Quantity< EmSquares, ByT > const &	by )

Round to font size in pixels-per-em.

This function is used to round the font size by the length in Em. For example to round the font-size so that the x-height will be aligned to pixel boundaries for sharper display of text.

saturate_cast()

template<std::integral Out, arithmetic In>

constexpr Out hi::v1::saturate_cast ( In rhs )

constexprnoexcept

Cast a numeric value to an integer saturating on overflow.

Template Parameters

Out	the signed- or unsigned-integer type to cast to.

Parameters

rhs	The value to convert.

Returns

The converted value, which is saturated if rhs is over- or underflowing.

scale_from_center()

constexpr quad hi::v1::scale_from_center ( quad const & lhs, scale2 const & rhs )

constexprnoexcept

scale the quad.

Each edge of the quad scaled.

Parameters

lhs	A quad.
rhs	The width and height to scale each edge with.

Returns

The new quad extended by the size.

set_user_setting() [1/2]

std::error_code hi::v1::set_user_setting ( std::string_view key, long long value )

inlinenoexcept

Set a user-setting for the application.

Keys starting with two consequitive underscores are reserved by the HikoGUI library.

Parameters

key	A key for the user setting.
value	The value to set.

Exceptions

std::invalid_argument	When the key is not valid.
std::out_of_range	if the value in the default does not fit in the return value.

set_user_setting() [2/2]

std::error_code hi::v1::set_user_setting ( std::string_view key, std::string_view value )

inlinenoexcept

Set a user-setting for the application.

Keys starting with two consequitive underscores are reserved by the HikoGUI library.

Parameters

key	A key for the user setting.
value	The value to set.

Exceptions

std::invalid_argument	When the key is not valid.
std::out_of_range	if the value in the default does not fit in the return value.

start_console()

void hi::v1::start_console ( )

inlinenoexcept

Start the console.

Returns

A runtime-depended boolean to make sure the function is started before main.

terminate_handler()

void hi::v1::terminate_handler ( )

inlinenoexcept

The HikoGUI terminate handler.

This handler will print an error message on the console or pop-up a dialogue box.

Note

Use set_debug_message() to set a message.

three_way_compare()

template<arithmetic Lhs, arithmetic Rhs>

constexpr auto hi::v1::three_way_compare ( Lhs const & lhs, Rhs const & rhs )

constexprnoexcept

Safely compare two arithmetic values to each other.

Parameters

lhs	The left-hand-side arithmetic value.
rhs	The right-hand-side arithmetic value.

Returns

A std::strong_ordering or std::weak_ordering of the lhs and rhs.

to_gui_event_type()

constexpr gui_event_type hi::v1::to_gui_event_type ( std::string_view name )

constexprnoexcept

Convert a name to a GUI event type.

to_mask()

template<typename T >

constexpr T hi::v1::to_mask ( bool v )

constexprnoexcept

Create a mask from a boolean value.

Parameters

v	The boolean value to represent as a mask

Returns

A value which bit representations are all '1' when v == true, or all '0' when v == false.

to_signed()

template<std::integral In>

constexpr std::make_signed_t< In > hi::v1::to_signed ( In rhs )

constexprnoexcept

Cast an integral to an signed integral of the same size.

to_string() [1/3]

std::string_view hi::v1::to_string ( gui_event_type rhs )

inlinenoexcept

Convert a GUI event type to a string.

to_string() [2/3]

template<path_range Locations>

std::string hi::v1::to_string ( Locations && locations )

inlinenoexcept

Get a string representation of a search-path.

Parameters

locations

A range of std::filesystem::path elements.

Returns

A string of semicolon ';' separated paths.

to_string() [3/3]

template<std::integral T>

std::string hi::v1::to_string ( T const & value )

noexcept

Convert integer to string.

Convert floating point to string.

This function bypasses std::locale.

Parameters

value

The signed or unsigned integer value.

Returns

The integer converted to a decimal string.

to_unsigned()

template<std::integral In>

constexpr std::make_unsigned_t< In > hi::v1::to_unsigned ( In rhs )

constexprnoexcept

Cast an integral to an unsigned integral of the same size.

token_location()

template<std::input_iterator It, std::sentinel_for< It > ItEnd>

hi_export constexpr std::string hi::v1::token_location ( It & it, ItEnd last, std::string_view path )

constexprnoexcept

Create a location string for error messages.

Parameters

it	An iterator that dereferences to a hi::token.
last	The sentinel for it.
path	The filename of the file being parsed.

Returns

A string with the location of the token.

truncate()

template<std::integral Out, std::integral In>

constexpr Out hi::v1::truncate ( In rhs )

constexprnoexcept

Cast between integral types truncating or zero-extending the result.

ucd_get_bidi_mirroring_glyph()

constexpr char32_t hi::v1::ucd_get_bidi_mirroring_glyph ( char32_t code_point )

constexprnoexcept

Get the bidi-mirroring-glyph for a code-point.

Parameters

code_point

The code-point to query

Returns

The mirroring glyph, or U+0000 when the mirroring glyph was not found.

ucd_get_composition()

constexpr std::optional< char32_t > hi::v1::ucd_get_composition ( char32_t cp1, char32_t cp2 )

constexprnoexcept

Get the composition info of two code-points.

Parameters

cp1	The first code-point
cp2	The second code-point

Returns

The code-point forming the composition of the two given code-points, or std::nullopt if the two code-point don't composit.

ucd_get_decomposition()

constexpr ucd_decomposition_info hi::v1::ucd_get_decomposition ( char32_t code_point )

constexprnoexcept

Get the decomposition info of a code-point.

unfair_mutex_deadlock_clear_graph()

hi_export void hi::v1::unfair_mutex_deadlock_clear_graph ( )

inlinenoexcept

Clear the graph.

Is used in unit-tests.

unfair_mutex_deadlock_clear_stack()

hi_export void hi::v1::unfair_mutex_deadlock_clear_stack ( )

inlinenoexcept

Clear the stack.

Is used in unit-tests.

unfair_mutex_deadlock_lock()

hi_export void * hi::v1::unfair_mutex_deadlock_lock ( void * object )

inlinenoexcept

Lock an object on this thread.

Parameters

object

The object that is being locked.

Returns

nullptr on success, object if the mutex was already locked, a pointer to another mutex if potential dead-lock is found.

unfair_mutex_deadlock_remove_object()

hi_export void hi::v1::unfair_mutex_deadlock_remove_object ( void * object )

inlinenoexcept

Remove the object from the detection.

This function is needed when there are mutex-like objects that are dynamically de-allocated.

Parameters

object

The object to remove from the lock order graph.

unfair_mutex_deadlock_unlock()

hi_export bool hi::v1::unfair_mutex_deadlock_unlock ( void * object )

inlinenoexcept

Unlock an object on this thread.

Parameters

object

The object that is being locked.

Returns

true on success, false on failure.

up_cast() [1/3]

template<typename Out , typename In >

constexpr Out hi::v1::up_cast ( In & rhs )

constexprnoexcept

Cast a reference to a class to its base class or itself.

Template Parameters

Out	The output type; a base-class of the input.

Parameters

rhs	A reference to a object to cast.

Returns

A reference to casted type.

up_cast() [2/3]

template<typename Out , typename In >

constexpr Out hi::v1::up_cast ( In * rhs )

constexprnoexcept

Cast a pointer to a class to its base class or itself.

Template Parameters

Out	The output type; a base-class of the input.

Parameters

rhs	A pointer to a object to cast.

Returns

A pointer to casted type.

up_cast() [3/3]

template<typename Out >

constexpr Out hi::v1::up_cast ( nullptr_t )

constexprnoexcept

Cast a nullptr to a class.

Template Parameters

Out	The output type.

Parameters

rhs	A nullptr.

Returns

A nullptr of the output type

variants()

hi_export std::vector< language_tag > hi::v1::variants ( std::vector< language_tag > languages )

inline

Add variants to the list of languages.

This function is mostly used to add languages to a list of preferred languages to search for translations in the translation catalog.

Parameters

languages

A list of languages ordered by preference.

Returns

A new list of languages which includes variants and ordered by the given list of languages.

wide_cast() [1/4]

template<typename Out , std::same_as< Out > In>

constexpr Out hi::v1::wide_cast ( In const & rhs )

constexprnoexcept

Cast to a type which can hold all values from the input type.

Note

This is the identity operation, when casting to the same type.

Template Parameters

Out	The same type as the input.

Parameters

rhs	The value of the input type.

Returns

A copy of the input value.

wide_cast() [2/4]

template<std::floating_point Out, std::floating_point In>
requires (not std::same_as<In, Out>)

constexpr Out hi::v1::wide_cast ( In const & rhs )

constexprnoexcept

Cast a floating point number to a floating point type that is wider.

Template Parameters

Out	A floating point type larger than the input type.

Parameters

rhs	The floating point input value.

Returns

The floating point value converted to a wider floating point type.

wide_cast() [3/4]

template<std::integral Out, std::integral In>
requires (not std::same_as<In, Out>)

constexpr Out hi::v1::wide_cast ( In rhs )

constexprnoexcept

Cast a integer to an integer type which is wider.

Template Parameters

Out	An integer type that can hold all values of the input type.

Parameters

rhs	The integer input value.

Returns

The value converted to a wider integer type.

wide_cast() [4/4]

template<std::floating_point Out, std::integral In>

constexpr Out hi::v1::wide_cast ( In rhs )

constexprnoexcept

Cast a integer to an float type which is wider.

Since wide_cast() must be perfect the integers must be perfectly representable by a floating point number. Integers that have number of binary digits less or equal to the size of the mantissa of a floating point number can be perfectly represented.

• Up to uint16_t, int16_t can be wide_cast() to float.
• Up to uint32_t, int32_t can be wide_cast() to double.

Template Parameters

Out	An float type that can hold all values of the input type without loss of precission.

Parameters

rhs	The integer input value.

Returns

The value converted to a wider float type.

win32_HANDLE_to_int()

uint32_t hi::v1::win32_HANDLE_to_int ( HANDLE handle )

inlinenoexcept

Convert a HANDLE to a 32-bit unsigned integer.

Although a HANDLE is a typedef of a void *, in reality it is an 32 bit unsigned integer.

This function is used to pass a HANDLE of an Event Object to be passed on the command-line to vsjitdebugger.exe.

win32_MultiByteToWideChar()

std::expected< std::wstring, win32_error > hi::v1::win32_MultiByteToWideChar ( std::string_view s, unsigned int code_page = CP_UTF8, uint32_t flags = 0 )

inlinenoexcept

Convert a win32-API compatible std::wstring to a multi-byte std::string.

Parameters

s	The wide string to convert
code_page	The code-page to use for conversion
flags	The flags to passing

Returns

multi-byte string.

win32_MultiSZToStringVector()

std::expected< std::vector< std::string >, win32_error > hi::v1::win32_MultiSZToStringVector ( wchar_t const * first, wchar_t const * last )

inlinenoexcept

Convert a win32 zero terminated list of zero terminated strings.

This function will treat the array as-if it is a list of zero terminated strings, where the last string is a zero terminated empty string.

Parameters

first	A pointer to a buffer of a zero terminated list of zero terminated string.
last	A pointer one beyond the buffer.

Returns

A vector of UTF-8 encoded strings, win32_error::invalid_data when the list is incorrectly terminated.

win32_RegDeleteKey()

win32_error hi::v1::win32_RegDeleteKey ( HKEY key, std::string_view path )

inlinenoexcept

Delete all registry values and the last part of the subkey.

Parameters

key	The registry's key
path	The path to the values.

win32_RegDeleteKeyValue()

win32_error hi::v1::win32_RegDeleteKeyValue ( HKEY key, std::string_view path, std::string_view name )

inlinenoexcept

Delete a registry value.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.

win32_RegGetValue()

template<typename T >

std::expected< T, win32_error > hi::v1::win32_RegGetValue ( HKEY key, std::string_view path, std::string_view name )

inlinedelete

Read from the registry value.

Template Parameters

T	The type of the value to read.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.

Returns

value, or std::nullopt if the registry-value was not found.

Exceptions

hi::os_error

Unable to read the registry-value, for example when the type was different.

win32_RegGetValue_dword()

std::expected< uint32_t, win32_error > hi::v1::win32_RegGetValue_dword ( HKEY key, std::string_view path, std::string_view name )

inlinenoexcept

Read a DWORD registry value.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.

Returns

value, or win32_error::file_not_found if entry was not found, otherwise an error.

win32_RegGetValue_multi_string()

std::expected< std::vector< std::string >, win32_error > hi::v1::win32_RegGetValue_multi_string ( HKEY key, std::string_view path, std::string_view name )

inlinenoexcept

Read a list of strings from the registry value.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.

Returns

value, or std::nullopt if the registry-value was not found.

Exceptions

hi::os_error

Unable to read the registry-value, for example when the type was different.

win32_RegGetValue_string()

std::expected< std::string, win32_error > hi::v1::win32_RegGetValue_string ( HKEY key, std::string_view path, std::string_view name )

inlinenoexcept

Read a strings from the registry value.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.

Returns

value, or win32_error::file_not_found if entry was not found, otherwise an error.

win32_RegGetValue_void()

std::expected< void, win32_error > hi::v1::win32_RegGetValue_void ( HKEY key, std::string_view path, std::string_view name )

inline

Check if a registry entry exists.

Returns

win32_error success, or win32_error::file_not_found if entry was not found, otherwise an error.

win32_RegSetKeyValue() [1/2]

win32_error hi::v1::win32_RegSetKeyValue ( HKEY key, std::string_view path, std::string_view name, std::string_view value )

inline

Write a string registry value.

Note

If the path or name do not exist it is automatically created.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.
value	The value to write

Returns

0 on success, or error code on failure.

win32_RegSetKeyValue() [2/2]

win32_error hi::v1::win32_RegSetKeyValue ( HKEY key, std::string_view path, std::string_view name, uint32_t value )

inline

Write a DWORD registry value.

Note

If the path or name do not exist it is automatically created.

Parameters

key	The registry's key
path	The path to the values.
name	The name of the value.
value	The value to write

Returns

0 on success, or error code on failure.

win32_SHGetKnownFolderPath()

std::expected< std::filesystem::path, hresult_error > hi::v1::win32_SHGetKnownFolderPath ( KNOWNFOLDERID const & folder_id )

inlinenoexcept

Convenience function for SHGetKnownFolderPath().

Retrieves a full path of a known folder identified by the folder's KNOWNFOLDERID. See https://docs.microsoft.com/en-us/windows/win32/shell/knownfolderid#constants

Parameters

KNOWNFOLDERID

folder_id.

Returns

The path of the folder.

win32_WideCharToMultiByte()

std::expected< std::string, win32_error > hi::v1::win32_WideCharToMultiByte ( std::wstring_view s, unsigned int code_page = CP_UTF8, uint32_t flags = 0 )

inlinenoexcept

Convert a win32-API compatible std::wstring to a multi-byte std::string.

Parameters

s	The wide string to convert
code_page	The code-page to use for conversion
flags	The flags to passing

Returns

multi-byte string.

Variable Documentation

audio_device_state_metadata

hi_export constexpr auto hi::v1::audio_device_state_metadata

constexpr

Initial value:

= enum_metadata{
    audio_device_state::uninitialized, "uninitialized",
    audio_device_state::active, "active",
    audio_device_state::disabled, "disabled",
    audio_device_state::not_present, "not_present",
    audio_device_state::unplugged, "unplugged",
}

audio_direction_metadata

hi_export constexpr auto hi::v1::audio_direction_metadata

constexpr

Initial value:

= enum_metadata{
    audio_direction::none, "none",
    audio_direction::input, "input",
    audio_direction::output, "output",
    audio_direction::bidirectional, "bidirectional"
}

cancel_features_v

template<typename Func , typename... Args>

constexpr auto hi::v1::cancel_features_v = cancel_features<Func, Args...>::value

constexpr

The value of the hi::cancel_features<> type trait.

common_sample_rates

hi_export constexpr auto hi::v1::common_sample_rates

constexpr

Initial value:

= std::array{
    uint32_t{8000},
    uint32_t{16000},
    uint32_t{32000},
    uint32_t{44100},
    uint32_t{47952},
    uint32_t{48000},
    uint32_t{48048},
    uint32_t{88200},
    uint32_t{95904},
    uint32_t{96000},
    uint32_t{96096},
    uint32_t{176400},
    uint32_t{191808},
    uint32_t{192000},
    uint32_t{192192},
    uint32_t{352800},
    uint32_t{383616},
    uint32_t{384000},
    uint32_t{384384}}

device_type_metadata

constexpr auto hi::v1::device_type_metadata

constexpr

Initial value:

= enum_metadata{
    device_type::desktop, "desktop",
    device_type::server, "server",
    device_type::watch, "watch",
    device_type::phone, "phone",
    device_type::tablet, "tablet",
    device_type::game_console, "game console",
    device_type::television, "television"
}

font_style_metadata

constexpr auto hi::v1::font_style_metadata

constexpr

Initial value:

= enum_metadata{
    font_style::normal, "normal",
    font_style::italic, "italic",
}

is_byte_like_v

template<typename T >

constexpr bool hi::v1::is_byte_like_v = is_byte_like<T>::value

inlineconstexpr

An array of this type will implicitly create objects within that array.

P059R6: Implicit creation of objects for low-level object manipulation.

is_character_v

template<typename T >

constexpr bool hi::v1::is_character_v = is_character<T>::value

inlineconstexpr

True is the supplied type is a character integer. This distinguishes between integer characters and integer numbers.

is_numeric_integral_v

template<typename T >

constexpr bool hi::v1::is_numeric_integral_v = is_numeric_integral<T>::value

inlineconstexpr

See also

is_numeric_integral

is_numeric_signed_integral_v

template<typename T >

constexpr bool hi::v1::is_numeric_signed_integral_v = is_numeric_signed_integral<T>::value

inlineconstexpr

See also

is_numeric_signed_integral

is_numeric_unsigned_integral_v

template<typename T >

constexpr bool hi::v1::is_numeric_unsigned_integral_v = is_numeric_unsigned_integral<T>::value

inlineconstexpr

See also

is_numeric_unsigned_integral

is_numeric_v

template<typename T >

constexpr bool hi::v1::is_numeric_v = is_numeric<T>::value

inlineconstexpr

See also

is_numeric

old_terminate_handler

std::terminate_handler hi::v1::old_terminate_handler

inline

The old terminate handler.

This is the handler returned by std::set_terminate().

policy_metadata

constexpr auto hi::v1::policy_metadata

constexpr

Initial value:

= enum_metadata{
    policy::unspecified, "unspecified",
    policy::low_power, "low-power",
    policy::high_performance, "high-performance"
}

semantic_color_metadata

constexpr auto hi::v1::semantic_color_metadata

constexpr

Initial value:

= enum_metadata{
    semantic_color::blue, "blue",
    semantic_color::green, "green",
    semantic_color::indigo, "indigo",
    semantic_color::orange, "orange",
    semantic_color::pink, "pink",
    semantic_color::purple, "purple",
    semantic_color::red, "red",
    semantic_color::teal, "teal",
    semantic_color::yellow, "yellow",
    semantic_color::gray, "gray",
    semantic_color::gray2, "gray2",
    semantic_color::gray3, "gray3",
    semantic_color::gray4, "gray4",
    semantic_color::gray5, "gray5",
    semantic_color::gray6, "gray6",
    semantic_color::foreground, "foreground",
    semantic_color::border, "border",
    semantic_color::fill, "fill",
    semantic_color::accent, "accent",
    semantic_color::text_select, "text-select",
    semantic_color::primary_cursor, "primary-cursor",
    semantic_color::secondary_cursor, "secondary-cursor",
}

type_in_range_v

template<typename Out , typename In >

constexpr bool hi::v1::type_in_range_v

constexpr

Initial value:

= std::numeric_limits<Out>::digits >= std::numeric_limits<In>::digits and
    (std::numeric_limits<Out>::is_signed == std::numeric_limits<In>::is_signed or std::numeric_limits<Out>::is_signed)

All values of numeric type In can be represented without loss of range by numeric type Out.