libsigc++: sigc::hide_functor< I_location, T_functor > Struct Template Reference
Adaptor that adds a dummy parameter to the wrapped functor. More...
#include <sigc++/adaptors/hide.h>
Inheritance diagram for sigc::hide_functor< I_location, T_functor >:
Public Member Functions | |
hide_functor (const T_functor& func) | |
Constructs a hide_functor object that adds a dummy parameter to the passed functor. More... | |
template<typename... T_arg> | |
decltype(auto) | operator() (T_arg&&...a) |
Invokes the wrapped functor, ignoring the argument at index I_location (0-indexed). More... | |
Public Member Functions inherited from sigc::adapts< T_functor > | |
adapts (const T_functor& functor) | |
Constructs an adaptor that wraps the passed functor. More... | |
Additional Inherited Members | |
Public Attributes inherited from sigc::adapts< T_functor > | |
adaptor_type | functor_ |
Adaptor that is invoked from operator()(). More... | |
Detailed Description
template<int I_location, typename T_functor>
struct sigc::hide_functor< I_location, T_functor >
Adaptor that adds a dummy parameter to the wrapped functor.
Use the convenience function sigc::hide() to create an instance of sigc::hide_functor.
The following template arguments are used:
- I_location Zero-based position of the dummy parameter (
-1
for the last parameter). - T_type Type of the dummy parameter.
- T_functor Type of the functor to wrap.
Constructor & Destructor Documentation
template <int I_location, typename T_functor >
|
inlineexplicit |
Constructs a hide_functor object that adds a dummy parameter to the passed functor.
- Parameters
-
func Functor to invoke from operator()().
Member Function Documentation
template <int I_location, typename T_functor >
template <typename... T_arg>
|
inline |
Invokes the wrapped functor, ignoring the argument at index I_location (0-indexed).
- Parameters
-
a Arguments to be passed on to the functor, apart from the ignored argument.
- Returns
- The return value of the functor invocation.