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# sigc::mem_functor0< T_return, T_obj > Class Template Reference
[mem_fun()]

mem_functor0 wraps methods with 0 argument(s). More...

Inheritance diagram for sigc::mem_functor0< T_return, T_obj >:

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## Public Types
typedef T_return(T_obj::*) | function_type ()
typedef T_return | result_type
## Public Member Functions
| mem_functor0 ()
| Constructs an invalid functor.
| mem_functor0 (function_type _A_func)
| Constructs a mem_functor0 object that wraps the passed method.
T_return | operator() (T_obj* _A_obj) const
| Execute the wrapped method operating on the passed instance.
T_return | operator() (T_obj& _A_obj) const
| Execute the wrapped method operating on the passed instance.
## Protected Attributes
function_type | func_ptr_

## Detailed Description

### template <class T_return, class T_obj>
class sigc::mem_functor0< T_return, T_obj >

mem_functor0 wraps methods with 0 argument(s).

Use the convenience function mem_fun() to create an instance of mem_functor0.

The following template arguments are used:

- T_return The return type of operator()().
- T_obj The object type.

## Member Typedef Documentation

template <class T_return, class T_obj>

typedef T_return(T_obj::*) sigc::mem_functor0<T_return, T_obj>::function_type()

Reimplemented in sigc::bound_mem_functor0<T_return, T_obj>.

template <class T_return, class T_obj>

typedef T_return sigc::mem_functor0<T_return, T_obj>::result_type

## Constructor & Destructor Documentation

template <class T_return, class T_obj>

sigc::mem_functor0<T_return, T_obj>::mem_functor0 | ( |  | ) | `[inline]`

Constructs an invalid functor.

template <class T_return, class T_obj>

sigc::mem_functor0<T_return, T_obj>::mem_functor0 | ( | function_type | _A_func | ) | `[inline, explicit]`

Constructs a mem_functor0 object that wraps the passed method.

Parameters:

  | _A_func | Pointer to method will be invoked from operator()().

## Member Function Documentation

template <class T_return, class T_obj>

T_return sigc::mem_functor0<T_return, T_obj>::operator() | ( | T_obj * | _A_obj | ) | const`[inline]`

Execute the wrapped method operating on the passed instance.

Parameters:

  | _A_obj | Pointer to instance the method should operate on.

Returns:
  The return value of the method invocation.

template <class T_return, class T_obj>

T_return sigc::mem_functor0<T_return, T_obj>::operator() | ( | T_obj & | _A_obj | ) | const`[inline]`

Execute the wrapped method operating on the passed instance.

Parameters:

  | _A_obj | Reference to instance the method should operate on.

Returns:
  The return value of the method invocation.

## Member Data Documentation

template <class T_return, class T_obj>

function_type sigc::mem_functor0<T_return, T_obj>::func_ptr_`[protected]`

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

- mem_fun.h