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)
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 2025 of file functional.

Constructor & Destructor Documentation

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::function ( ) [inline]

Default construct creates an empty function call wrapper.

Postcondition:: !(bool)*this

Definition at line 2042 of file functional.

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::function ( nullptr_t ) [inline]

Creates an empty function call wrapper.

Postcondition:: !(bool)*this

Definition at line 2049 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 2275 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 2069 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 2289 of file functional.

Member Function Documentation

template<typename _Res , typename... _ArgTypes>

std::function< _Res(_ArgTypes...)>::operator bool ( ) const [inline, explicit]

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 2224 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 2307 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 2111 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 2129 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 2143 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 2172 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 ) [inline]

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 2181 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 2196 of file functional.

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

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

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 2334 of file functional.

template<typename _Res , typename... _ArgTypes>

template<typename _Functor >

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

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 2353 of file functional.

template<typename _Res , typename... _ArgTypes>

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

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 2318 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...)>