libsigc++  2.99.3
Public Types | Public Member Functions | Public Attributes | List of all members
sigc::bind_return_functor< T_return, T_functor > Struct Template Reference

Adaptor that fixes the return value of the wrapped functor. More...

#include <sigc++/adaptors/bind_return.h>

Inheritance diagram for sigc::bind_return_functor< T_return, T_functor >:
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Public Types

using result_type = typename unwrap_reference< T_return >::type
 
- Public Types inherited from sigc::adapts< T_functor >
using adaptor_type = typename adaptor_trait< T_functor >::adaptor_type
 
using result_type = typename adaptor_trait< T_functor >::result_type
 

Public Member Functions

 bind_return_functor (type_trait_take_t< T_functor > _A_functor, type_trait_take_t< T_return > _A_ret_value)
 Constructs a bind_return_functor object that fixes the return value to _A_ret_value. More...
 
unwrap_reference< T_return >::type operator() ()
 Invokes the wrapped functor dropping its return value. More...
 
template<class... T_arg>
unwrap_reference< T_return >::type operator() (T_arg..._A_a)
 Invokes the wrapped functor passing on the arguments. More...
 
- Public Member Functions inherited from sigc::adapts< T_functor >
 adapts (const T_functor& _A_functor)
 Constructs an adaptor that wraps the passed functor. More...
 

Public Attributes

bound_argument< T_return > ret_value_
 The fixed return value. More...
 
- Public Attributes inherited from sigc::adapts< T_functor >
adaptor_type functor_
 Adaptor that is invoked from operator()(). More...
 

Detailed Description

template<class T_return, class T_functor>
struct sigc::bind_return_functor< T_return, T_functor >

Adaptor that fixes the return value of the wrapped functor.

Use the convenience function sigc::bind_return() to create an instance of sigc::bind_return_functor.

The following template arguments are used:

Member Typedef Documentation

template <class T_return , class T_functor >
using sigc::bind_return_functor< T_return, T_functor >::result_type = typename unwrap_reference<T_return>::type

Constructor & Destructor Documentation

template <class T_return , class T_functor >
sigc::bind_return_functor< T_return, T_functor >::bind_return_functor ( type_trait_take_t< T_functor >  _A_functor,
type_trait_take_t< T_return >  _A_ret_value 
)
inline

Constructs a bind_return_functor object that fixes the return value to _A_ret_value.

Parameters
_A_functorFunctor to invoke from operator()().
_A_ret_valueValue to return from operator()().

Member Function Documentation

template <class T_return , class T_functor >
unwrap_reference< T_return >::type sigc::bind_return_functor< T_return, T_functor >::operator() ( )

Invokes the wrapped functor dropping its return value.

Returns
The fixed return value.
template <class T_return , class T_functor >
template <class... T_arg>
unwrap_reference<T_return>::type sigc::bind_return_functor< T_return, T_functor >::operator() ( T_arg...  _A_a)
inline

Invokes the wrapped functor passing on the arguments.

Parameters
_A_a...Arguments to be passed on to the functor.
Returns
The fixed return value.

Member Data Documentation

template <class T_return , class T_functor >
bound_argument<T_return> sigc::bind_return_functor< T_return, T_functor >::ret_value_

The fixed return value.