arene::base::identity Class Reference

A backport of the C++20 std::identity function object. It returns its input unchanged. More...

Inheritance diagram for arene::base::identity:

Public Types
using	is_transparent = void
	Indicates that this function object can be used with transparent comparisons.

Public Member Functions
template<typename T>
constexpr auto	operator() (T &&value) const noexcept -> T &&
	Returns the input value unchanged as if forwarded via std::forward.

Detailed Description

A backport of the C++20 std::identity function object. It returns its input unchanged.

Member Typedef Documentation

is_transparent

using arene::base::identity::is_transparent = void

Indicates that this function object can be used with transparent comparisons.

Member Function Documentation

operator()()

template<typename T>

auto arene::base::identity::operator() ( T && value ) const -> T&&

inlineconstexprnoexcept

Returns the input value unchanged as if forwarded via std::forward.

Template Parameters

T	The input type.

Parameters

value

The input value.

Returns

T&& The forwarded input value, unchanged.

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

• arene/base/functional/identity.hpp