v1::forward_value< T > Struct Template Reference

#include <hikogui/utility/forward_value.hpp>

Public Types
using	type = std::remove_cvref_t<T>

Public Member Functions
type	operator() (T const &t) const noexcept

Detailed Description

template<typename T>
struct v1::forward_value< T >

Functor for forwarding an forwarding-reference to variable.

This functor is used to long-time-storage of values passed into a template function. This means that views need to be translated into non-view values.

For savety against the lifetime of the orginal object ending:

• rvalues are moved
• lvalues are copied
• std::string_view are copied into a std::string
• std::span are copied into a std::vector

For performance a string literal which is stored in constant are taken by pointer:

• char const (&)[] (string literal) are forward as a char const *

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The documentation for this struct was generated from the following file:

• hikogui/src/hikogui/utility/forward_value.hpp