# sigc::hide_functor< 2, T_functor > Struct Template Reference
hide(), hide_return()

Adaptor that adds a dummy parameter to the wrapped functor. More...

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

Inheritance diagram for sigc::hide_functor< 2, T_functor >:
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List of all members.

## Public Types

typedef adapts< T_functor > ::adaptor_type | adaptor_type
typedef adaptor_type::result_type | result_type

## Public Member Functions

template<class T_arg1 , class T_arg2 , class T_arg3 >
deduce_result_type< T_arg1, T_arg2, T_arg3 >::type | operator() (T_arg1 _A_a1, T_arg2 _A_a2, T_arg3)
| Invokes the wrapped functor, ignoring the 3th argument.
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_a1, T_arg2 _A_a2, T_arg3, T_arg4 _A_a4)
| Invokes the wrapped functor, ignoring the 3th argument.
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_a1, T_arg2 _A_a2, T_arg3, T_arg4 _A_a4, T_arg5 _A_a5)
| Invokes the wrapped functor, ignoring the 3th argument.
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_a1, T_arg2 _A_a2, T_arg3, T_arg4 _A_a4, T_arg5 _A_a5, T_arg6 _A_a6)
| Invokes the wrapped functor, ignoring the 3th argument.
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_a1, T_arg2 _A_a2, T_arg3, T_arg4 _A_a4, T_arg5 _A_a5, T_arg6 _A_a6, T_arg7 _A_a7)
| Invokes the wrapped functor, ignoring the 3th argument.
| hide_functor (const T_functor& _A_func)
| Constructs a hide_functor object that adds a dummy parameter to the passed functor.

## Detailed Description

### template<class T_functor>
struct sigc::hide_functor< 2, T_functor >

Adaptor that adds a dummy parameter to the wrapped functor.

This template specialization ignores the value of the 2th parameter in operator()().

## Constructor & Destructor Documentation

template <class T_functor >

sigc::hide_functor< 2, T_functor >::hide_functor | ( | const T_functor & | _A_func | ) | `[inline, explicit]`

Constructs a hide_functor object that adds a dummy parameter to the passed functor.

Parameters:

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

## Member Function Documentation

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::hide_functor< 2, T_functor >::operator() | ( | T_arg1 | _A_a1,
|  | T_arg2 | _A_a2,
|  | T_arg3 |
| ) |  | `[inline]`

Invokes the wrapped functor, ignoring the 3th argument.

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 ignored.

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::hide_functor< 2, T_functor >::operator() | ( | T_arg1 | _A_a1,
|  | T_arg2 | _A_a2,
|  | T_arg3 | ,
|  | T_arg4 | _A_a4,
|  | T_arg5 | _A_a5,
|  | T_arg6 | _A_a6,
|  | T_arg7 | _A_a7
| ) |  | `[inline]`

Invokes the wrapped functor, ignoring the 3th argument.

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 ignored.
  _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::hide_functor< 2, T_functor >::operator() | ( | T_arg1 | _A_a1,
|  | T_arg2 | _A_a2,
|  | T_arg3 | ,
|  | T_arg4 | _A_a4,
|  | T_arg5 | _A_a5,
|  | T_arg6 | _A_a6
| ) |  | `[inline]`

Invokes the wrapped functor, ignoring the 3th argument.

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 ignored.
  _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::hide_functor< 2, T_functor >::operator() | ( | T_arg1 | _A_a1,
|  | T_arg2 | _A_a2,
|  | T_arg3 | ,
|  | T_arg4 | _A_a4,
|  | T_arg5 | _A_a5
| ) |  | `[inline]`

Invokes the wrapped functor, ignoring the 3th argument.

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 ignored.
  _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::hide_functor< 2, T_functor >::operator() | ( | T_arg1 | _A_a1,
|  | T_arg2 | _A_a2,
|  | T_arg3 | ,
|  | T_arg4 | _A_a4
| ) |  | `[inline]`

Invokes the wrapped functor, ignoring the 3th argument.

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 ignored.
  _A_arg4 | Argument to be passed on to the functor.

Returns:
  The return value of the functor invocation.