# sigc::adaptor_functor< T_functor > Struct Template Reference
Adaptors

Converts an arbitrary functor into an adaptor type. More...

`#include <sigc++/adaptors/adaptor_trait.h>`

Inheritance diagram for sigc::adaptor_functor< T_functor >:
[legend]

List of all members.

## Public Types

typedef functor_trait < T_functor >::result_type | result_type

## Public Member Functions

result_type | operator() () const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 >
deduce_result_type< T_arg1 >::type | operator() (T_arg1 _A_arg1) const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 , class T_arg2 >
deduce_result_type< T_arg1, T_arg2 >::type | operator() (T_arg1 _A_arg1, T_arg2 _A_arg2) const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 , class T_arg2 , class T_arg3 >
deduce_result_type< T_arg1, T_arg2, T_arg3 >::type | operator() (T_arg1 _A_arg1, T_arg2 _A_arg2, T_arg3 _A_arg3) const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 >
deduce_result_type< T_arg1, T_arg2, T_arg3, T_arg4 >::type | operator() (T_arg1 _A_arg1, T_arg2 _A_arg2, T_arg3 _A_arg3, T_arg4 _A_arg4) const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 , class T_arg5 >
deduce_result_type< T_arg1, T_arg2, T_arg3, T_arg4, T_arg5 > ::type | operator() (T_arg1 _A_arg1, T_arg2 _A_arg2, T_arg3 _A_arg3, T_arg4 _A_arg4, T_arg5 _A_arg5) const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 , class T_arg5 , class T_arg6 >
deduce_result_type< T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6 >::type | operator() (T_arg1 _A_arg1, T_arg2 _A_arg2, T_arg3 _A_arg3, T_arg4 _A_arg4, T_arg5 _A_arg5, T_arg6 _A_arg6) const
| Invokes the wrapped functor passing on the arguments.
template<class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 , class T_arg5 , class T_arg6 , class T_arg7 >
deduce_result_type< T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7 >::type | operator() (T_arg1 _A_arg1, T_arg2 _A_arg2, T_arg3 _A_arg3, T_arg4 _A_arg4, T_arg5 _A_arg5, T_arg6 _A_arg6, T_arg7 _A_arg7) const
| Invokes the wrapped functor passing on the arguments.
| adaptor_functor ()
| Constructs an invalid functor.
| adaptor_functor (const T_functor& _A_functor)
| Constructs an adaptor_functor object that wraps the passed functor.
template<class T_type >
| adaptor_functor (const T_type& _A_type)
| Constructs an adaptor_functor object that wraps the passed (member) function pointer.

## Public Attributes

T_functor | functor_
| Functor that is invoked from operator()().

## Detailed Description

### template<class T_functor>
struct sigc::adaptor_functor< T_functor >

Converts an arbitrary functor into an adaptor type.

All adaptor tyes in libsigc++ are unnumbered and have a `template operator()` member of every argument count they support. These functions in turn invoke a stored adaptor's `template operator()`, processing the arguments and return value in a characteristic manner. Explicit function template instantiation is used to pass type hints thus saving copy costs.

adaptor_functor is a glue between adaptors and arbitrary functors that just passes on the arguments. You won't use this type directly.

The template argument T_functor determines the type of stored functor.

## Constructor & Destructor Documentation

template <class T_functor >

sigc::adaptor_functor< T_functor >::adaptor_functor | ( | const T_functor & | _A_functor | ) | `[inline, explicit]`

Constructs an adaptor_functor object that wraps the passed functor.

Parameters:

  _A_functor | Functor to invoke from operator()().

template <class T_functor >
template <class T_type >

sigc::adaptor_functor< T_functor >::adaptor_functor | ( | const T_type & | _A_type | ) | `[inline, explicit]`

Constructs an adaptor_functor object that wraps the passed (member) function pointer.

Parameters:

  _A_type | Pointer to function or class method to invoke from operator()().

## Member Function Documentation

template <class T_functor >

adaptor_functor< T_functor >::result_type sigc::adaptor_functor< T_functor >::operator() | ( |  | ) | const

Invokes the wrapped functor passing on the arguments.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 , class T_arg5 , class T_arg6 , class T_arg7 >

deduce_result_type<T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6, T_arg7>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1,
|  | T_arg2 | _A_arg2,
|  | T_arg3 | _A_arg3,
|  | T_arg4 | _A_arg4,
|  | T_arg5 | _A_arg5,
|  | T_arg6 | _A_arg6,
|  | T_arg7 | _A_arg7
| ) |  | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.
  _A_arg2 | Argument to be passed on to the functor.
  _A_arg3 | Argument to be passed on to the functor.
  _A_arg4 | Argument to be passed on to the functor.
  _A_arg5 | Argument to be passed on to the functor.
  _A_arg6 | Argument to be passed on to the functor.
  _A_arg7 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 , class T_arg5 , class T_arg6 >

deduce_result_type<T_arg1, T_arg2, T_arg3, T_arg4, T_arg5, T_arg6>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1,
|  | T_arg2 | _A_arg2,
|  | T_arg3 | _A_arg3,
|  | T_arg4 | _A_arg4,
|  | T_arg5 | _A_arg5,
|  | T_arg6 | _A_arg6
| ) |  | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.
  _A_arg2 | Argument to be passed on to the functor.
  _A_arg3 | Argument to be passed on to the functor.
  _A_arg4 | Argument to be passed on to the functor.
  _A_arg5 | Argument to be passed on to the functor.
  _A_arg6 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 , class T_arg5 >

deduce_result_type<T_arg1, T_arg2, T_arg3, T_arg4, T_arg5>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1,
|  | T_arg2 | _A_arg2,
|  | T_arg3 | _A_arg3,
|  | T_arg4 | _A_arg4,
|  | T_arg5 | _A_arg5
| ) |  | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.
  _A_arg2 | Argument to be passed on to the functor.
  _A_arg3 | Argument to be passed on to the functor.
  _A_arg4 | Argument to be passed on to the functor.
  _A_arg5 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 , class T_arg2 , class T_arg3 , class T_arg4 >

deduce_result_type<T_arg1, T_arg2, T_arg3, T_arg4>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1,
|  | T_arg2 | _A_arg2,
|  | T_arg3 | _A_arg3,
|  | T_arg4 | _A_arg4
| ) |  | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.
  _A_arg2 | Argument to be passed on to the functor.
  _A_arg3 | Argument to be passed on to the functor.
  _A_arg4 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 , class T_arg2 , class T_arg3 >

deduce_result_type<T_arg1, T_arg2, T_arg3>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1,
|  | T_arg2 | _A_arg2,
|  | T_arg3 | _A_arg3
| ) |  | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.
  _A_arg2 | Argument to be passed on to the functor.
  _A_arg3 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 , class T_arg2 >

deduce_result_type<T_arg1, T_arg2>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1,
|  | T_arg2 | _A_arg2
| ) |  | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.
  _A_arg2 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.

template <class T_functor >
template <class T_arg1 >

deduce_result_type<T_arg1>::type sigc::adaptor_functor< T_functor >::operator() | ( | T_arg1 | _A_arg1 | ) | const`[inline]`

Invokes the wrapped functor passing on the arguments.

Parameters:

  _A_arg1 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.