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Collaboration diagram for compose():
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Classes | |
struct | sigc::compose1_functor<T_setter, T_getter> |
Adaptor that combines two functors. More... | |
struct | sigc::compose2_functor<T_setter, T_getter1, T_getter2> |
Adaptor that combines three functors. More... | |
Functions | |
template<class T_action, class T_setter, class T_getter> | |
void | sigc::visit_each (const T_action& _A_action, const compose1_functor<T_setter, T_getter>& _A_target) |
Performs a functor on each of the targets of a functor. | |
template<class T_action, class T_setter, class T_getter1, class T_getter2> | |
void | sigc::visit_each (const T_action& _A_action, const compose2_functor<T_setter, T_getter1, T_getter2>& _A_target) |
Performs a functor on each of the targets of a functor. | |
template<class T_setter, class T_getter> | |
compose1_functor< T_setter, T_getter > | sigc::compose (const T_setter& _A_setter, const T_getter& _A_getter) |
Creates an adaptor of type sigc::compose1_functor which combines two functors. | |
template<class T_setter, class T_getter1, class T_getter2> | |
compose2_functor< T_setter, T_getter1, T_getter2 > | sigc::compose (const T_setter& _A_setter, const T_getter1& _A_getter1, const T_getter2& _A_getter2) |
Creates an adaptor of type sigc::compose2_functor which combines three functors. |
On invokation parameters are passed on to one or two getter functor(s). The return value(s) are then passed on to the setter function.
float square_root(float a) { return sqrtf(a); } float sum(float a, float b) { return a+b; } std::cout << sigc::compose(&square_root, &sum)(9, 16); // calls square_root(sum(3,6)) std::cout << sigc::compose(&sum, &square_root, &square_root)(9); // calls sum(square_root(9), square_root(9))
sigc::signal<float,float,float> some_signal; some_signal.connect(sigc::compose(&square_root, &sum));
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Creates an adaptor of type sigc::compose2_functor which combines three functors.
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Creates an adaptor of type sigc::compose1_functor which combines two functors.
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Performs a functor on each of the targets of a functor. The function overload for sigc::compose2_functor performs a functor on the functors stored in the sigc::compose2_functor object. |
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Performs a functor on each of the targets of a functor. The function overload for sigc::compose1_functor performs a functor on the functors stored in the sigc::compose1_functor object. |