Inheritance diagram for std::function< _Res(_ArgTypes...)>:

[legend]

Public Types
typedef _Res	result_type

Public Member Functions
	function () noexcept

	function (nullptr_t) noexcept

	function (const function &__x)

	function (function &&__x) noexcept

template<typename _Functor , typename = _Requires<__not_<is_same<_Functor, function>>, void>, typename = _Requires<_Callable<_Functor>, void>>
	function (_Functor)

	operator bool () const noexcept

_Res	operator() (_ArgTypes... __args) const

function &	operator= (const function &__x)

function &	operator= (function &&__x) noexcept

function &	operator= (nullptr_t) noexcept

template<typename _Functor >
_Requires< _Callable< typename decay< _Functor >::type >, function & >	operator= (_Functor &&__f)

template<typename _Functor >
function &	operator= (reference_wrapper< _Functor > __f) noexcept

void	swap (function &__x) noexcept

const type_info &	target_type () const noexcept


template<typename _Functor >
_Functor *	target () noexcept

template<typename _Functor >
const _Functor *	target () const noexcept

Private Types
typedef bool(*	_Manager_type) (_Any_data &, const _Any_data &, _Manager_operation)

Private Member Functions
bool	_M_empty () const

Private Attributes
_Any_data	_M_functor

_Manager_type	_M_manager

Static Private Attributes
static const std::size_t	_M_max_align

static const std::size_t	_M_max_size

Detailed Description

template<typename _Res, typename... _ArgTypes>
class std::function< _Res(_ArgTypes...)>

Primary class template for std::function.

Polymorphic function wrapper.

Definition at line 370 of file std_function.h.

Constructor & Destructor Documentation

◆ function() [1/5]

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::function ( )

inlinenoexcept

Default construct creates an empty function call wrapper.

Postcondition: !(bool)*this

Definition at line 395 of file std_function.h.

◆ function() [2/5]

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::function ( nullptr_t )

inlinenoexcept

Creates an empty function call wrapper.

Postcondition: !(bool)*this

Definition at line 402 of file std_function.h.

◆ function() [3/5]

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::function ( const function< _Res(_ArgTypes...)> & __x )

Function copy constructor.

Parameters

__x	A function object with identical call signature.

Postcondition: bool(*this) == bool(__x)

The newly-created function contains a copy of the target of __x (if it has one).

Definition at line 653 of file std_function.h.

◆ function() [4/5]

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::function ( function< _Res(_ArgTypes...)> && __x )

inlinenoexcept

Function move constructor.

Parameters

__x	A function object rvalue with identical call signature.

The newly-created function contains the target of __x (if it has one).

Definition at line 422 of file std_function.h.

◆ function() [5/5]

template<typename _Res , typename... _ArgTypes>

template<typename _Functor , typename , typename >

std::function< _Res(_ArgTypes...)>::function ( _Functor __f )

Builds a function that targets a copy of the incoming function object.

Parameters

__f	A function object that is callable with parameters of type `T1`, `T2`, ..., `TN` and returns a value convertible to `Res`.

The newly-created function object will target a copy of __f. If __f is reference_wrapper<F>, then this function object will contain a reference to the function object __f.get(). If __f is a NULL function pointer or NULL pointer-to-member, the newly-created object will be empty.

If __f is a non-NULL function pointer or an object of type reference_wrapper<F>, this function will not throw.

Definition at line 667 of file std_function.h.

Member Function Documentation

◆ operator bool()

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::operator bool ( ) const

inlineexplicitnoexcept

Determine if the function wrapper has a target.

Returns: true when this function object contains a target, or false when it is empty.

This function will not throw an exception.

Definition at line 563 of file std_function.h.

◆ operator()()

template<typename _Res , typename... _ArgTypes>

_Res std::function< _Res(_ArgTypes...)>::operator() ( _ArgTypes... __args ) const

Invokes the function targeted by *this.

Returns: the result of the target.

Exceptions

bad_function_call when !(bool)*this

The function call operator invokes the target function object stored by this.

Definition at line 683 of file std_function.h.

◆ operator=() [1/5]

template<typename _Res , typename... _ArgTypes>

function& std::function< _Res(_ArgTypes...)>::operator= ( const function< _Res(_ArgTypes...)> & __x )

inline

Function assignment operator.

Parameters

__x	A function with identical call signature.

Postcondition: (bool)*this == (bool)x

Returns: *this

The target of __x is copied to *this. If __x has no target, then *this will be empty.

If __x targets a function pointer or a reference to a function object, then this operation will not throw an exception.

Definition at line 461 of file std_function.h.

◆ operator=() [2/5]

template<typename _Res , typename... _ArgTypes>

function& std::function< _Res(_ArgTypes...)>::operator= ( function< _Res(_ArgTypes...)> && __x )

inlinenoexcept

Function move-assignment operator.

Parameters

__x	A function rvalue with identical call signature.

Returns: *this

The target of __x is moved to *this. If __x has no target, then *this will be empty.

If __x targets a function pointer or a reference to a function object, then this operation will not throw an exception.

Definition at line 479 of file std_function.h.

◆ operator=() [3/5]

template<typename _Res , typename... _ArgTypes>

function& std::function< _Res(_ArgTypes...)>::operator= ( nullptr_t )

inlinenoexcept

Function assignment to zero.

Postcondition: !(bool)*this

Returns: *this

The target of *this is deallocated, leaving it empty.

Definition at line 493 of file std_function.h.

◆ operator=() [4/5]

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

_Requires<_Callable<typename decay<_Functor>::type>, function&> std::function< _Res(_ArgTypes...)>::operator= ( _Functor && __f )

inline

Function assignment to a new target.

Parameters

__f	A function object that is callable with parameters of type `T1`, `T2`, ..., `TN` and returns a value convertible to `Res`.

Returns: *this

This function object wrapper will target a copy of __f. If __f is reference_wrapper<F>, then this function object will contain a reference to the function object __f.get(). If __f is a NULL function pointer or NULL pointer-to-member, this object will be empty.

If __f is a non-NULL function pointer or an object of type reference_wrapper<F>, this function will not throw.

Definition at line 522 of file std_function.h.

◆ operator=() [5/5]

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

function& std::function< _Res(_ArgTypes...)>::operator= ( reference_wrapper< _Functor > __f )

inlinenoexcept

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Definition at line 531 of file std_function.h.

◆ swap()

template<typename _Res , typename... _ArgTypes>

void std::function< _Res(_ArgTypes...)>::swap ( function< _Res(_ArgTypes...)> & __x )

inlinenoexcept

Swap the targets of two function objects.

Parameters

__x	A function with identical call signature.

Swap the targets of this function object and __f. This function will not throw an exception.

Definition at line 546 of file std_function.h.

◆ target() [1/2]

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

_Functor * std::function< _Res(_ArgTypes...)>::target ( )

noexcept

Access the stored target function object.

Returns: Returns a pointer to the stored target function object, if typeid(_Functor).equals(target_type()); otherwise, a NULL pointer.

This function does not throw exceptions.

Definition at line 710 of file std_function.h.

◆ target() [2/2]

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

const _Functor * std::function< _Res(_ArgTypes...)>::target ( ) const

noexcept

Access the stored target function object.

Returns: Returns a pointer to the stored target function object, if typeid(_Functor).equals(target_type()); otherwise, a NULL pointer.

This function does not throw exceptions.

Definition at line 721 of file std_function.h.

◆ target_type()

template<typename _Res , typename... _ArgTypes>

const type_info & std::function< _Res(_ArgTypes...)>::target_type ( ) const

noexcept

Determine the type of the target of this function object wrapper.

Returns: the type identifier of the target function object, or typeid(void) if !(bool)*this.

This function will not throw an exception.

Definition at line 694 of file std_function.h.

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

std_function.h

Public Types

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

template<typename _Res, typename... _ArgTypes> class std::function< _Res(_ArgTypes...)>

Constructor & Destructor Documentation

◆ function() [1/5]

◆ function() [2/5]

◆ function() [3/5]

◆ function() [4/5]

◆ function() [5/5]

Member Function Documentation

◆ operator bool()

◆ operator()()

◆ operator=() [1/5]

◆ operator=() [2/5]

◆ operator=() [3/5]

◆ operator=() [4/5]

◆ operator=() [5/5]

◆ swap()

◆ target() [1/2]

◆ target() [2/2]

◆ target_type()

template<typename _Res, typename... _ArgTypes>
class std::function< _Res(_ArgTypes...)>