funcy::Identity< Arg > Struct Template Reference

Identity mapping \( f(x)=x \). More...

#include <identity.h>

Inheritance diagram for funcy::Identity< Arg >:

Collaboration diagram for funcy::Identity< Arg >:

Public Member Functions
	Identity ()=default
	Default constructor.
	Identity (const Arg &x) noexcept(std::is_copy_constructible_v< Arg >)
	Constructor. More...
	Identity (Arg &&x) noexcept(std::is_move_constructible_v< Arg >)
	Constructor. More...
void	update (const Arg &x)
	Reset point of evaluation.
const Arg &	d0 () const noexcept
	Function value.
template<int >
const Arg &	d1 (const Arg &dx) const noexcept
	First directional derivative.

Detailed Description

template<class Arg>
struct funcy::Identity< Arg >

Identity mapping \( f(x)=x \).

Constructor & Destructor Documentation

Identity() [1/2]

template<class Arg >

funcy::Identity< Arg >::Identity ( const Arg &  x )

inlinenoexcept

Constructor.

Parameters

x	point of evaluation.

Identity() [2/2]

template<class Arg >

funcy::Identity< Arg >::Identity ( Arg &&  x )

inlinenoexcept

Constructor.

Parameters

x	point of evaluation.

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

• include/funcy/identity.h