func::null_target_t implementation for no function. More...

Inheritance diagram for jau::func::null_target_t< R, A >:

Collaboration diagram for jau::func::null_target_t< R, A >:

Public Member Functions
	null_target_t () noexcept

R	operator() (A...) override

bool	operator== (const target_t< R, A... > &rhs) const noexcept override

Public Member Functions inherited from jau::func::target_t< R, A... >
	target_t (const target_t &o) noexcept=default

	target_t (target_t &&o) noexcept=default

virtual	~target_t () noexcept

virtual R	operator() (A... args)=0

target_t &	operator= (const target_t &o) noexcept=default

target_t &	operator= (target_t &&o) noexcept=default

virtual bool	operator== (const target_t< R, A... > &rhs) const noexcept=0

constexpr target_type	type () const noexcept
	Return the func::target_type of this invocation function wrapper. More...

Static Public Member Functions
static delegate_type	delegate () noexcept

Additional Inherited Members
Protected Member Functions inherited from jau::func::target_t< R, A... >
	target_t (target_type ttype_) noexcept

Detailed Description

template<typename R, typename... A>
class jau::func::null_target_t< R, A >

func::null_target_t implementation for no function.

identifiable as jau::func::target_type::null via jau::function<R(A...)>::type().

This special type is used for an empty jau::function instance w/o holding a function, e.g. when created with the default constructor.

Template Parameters

R	function return type
A	function arguments

Definition at line 749 of file functional.hpp.