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

Public Types
typedef _Res	result_type

Public Member Functions
	function () noexcept

	function (nullptr_t) noexcept

	function (const function &__x)

	function (function &&__x)

template<typename _Functor >
	function (_Functor __f, typename enable_if< !is_integral< _Functor >::value, _Useless >::type=_Useless())

	operator bool () const noexcept

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

function &	operator= (const function &__x)

function &	operator= (function &&__x)

function &	operator= (nullptr_t)

template<typename _Functor >
enable_if<!is_integral < _Functor >::value, function & > ::type	operator= (_Functor &&__f)

template<typename _Functor >
enable_if<!is_integral < _Functor >::value, function & > ::type	operator= (reference_wrapper< _Functor > __f) noexcept

void	swap (function &__x)

template<typename _Functor >
_Functor *	target () noexcept

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

const type_info &	target_type () 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 2024 of file functional.

Constructor & Destructor Documentation

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 2041 of file functional.

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 2048 of file functional.

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 2274 of file functional.

template<typename _Res , typename... _ArgTypes>

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

inline

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 2068 of file functional.

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

std::function< _Res(_ArgTypes...)>::function	(	_Functor	__f,
		typename enable_if< !is_integral< _Functor >::value, _Useless >::type	= `_Useless()`
	)

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 2288 of file functional.

Member Function Documentation

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 2223 of file functional.

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 2306 of file functional.

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 2110 of file functional.

template<typename _Res , typename... _ArgTypes>

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

inline

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 2128 of file functional.

template<typename _Res , typename... _ArgTypes>

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

inline

Function assignment to zero.

Postcondition: !(bool)*this

Returns: *this

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

Definition at line 2142 of file functional.

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

enable_if<!is_integral<_Functor>::value, function&>::type 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 2171 of file functional.

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

enable_if<!is_integral<_Functor>::value, function&>::type 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 2180 of file functional.

template<typename _Res , typename... _ArgTypes>

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

inline

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 2195 of file functional.

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 will not throw an exception.

Definition at line 2333 of file functional.

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

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

noexcept

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 2352 of file functional.

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 2317 of file functional.

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

functional

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

Member Function Documentation

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