AZStd::identity Struct Reference

#include <identity.h>

Public Types
using	is_transparent = void

Public Member Functions
template<typename T >
constexpr T &&	operator() (T &&t) const

Detailed Description

Implements the C++20 std::identity type trait Note: The member type is_transparent indicates to the caller that this function object is a transparent function object: it accepts arguments of arbitrary types and uses perfect forwarding, which avoids unnecessary copying and conversion when the function object is used in heterogeneous context, or with rvalue arguments. In particular, template functions such as std::set::find and std::set::lower_bound make use of this member type on their Compare types.

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

• Code/Framework/AzCore/AzCore/std/function/identity.h