std::is_member_function_pointer — cppreference.com
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| Déclaré dans l'en-tête <type_traits> |
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(depuis C++11) | |
Si T est un pointeur vers une fonction membre non statique, fournit du membre de constante value true égale. Pour tout autre type, value est false .
Original:
If T is pointer to non-static member function, provides the member constant value equal true. For any other type, value is false.
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Inherited from std::integral_constant
Member constants
value [ statique Original: static The text has been machine-translated via Google Translate. |
Original:
The text has been machine-translated via Google Translate. (constante membre statique publique) |
Member functions
convertit l'objet en Original: converts the object to The text has been machine-translated via Google Translate. (fonction membre publique) | |
Member types
Type d' Original: Type The text has been machine-translated via Google Translate. |
Definition |
value_type
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bool
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type
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std::integral_constant<bool, value>
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Mise en œuvre possible
template< class T > struct is_member_function_pointer_helper : std::false_type {}; template< class T, class U> struct is_member_function_pointer_helper<T U::*> : std::is_function<T> {}; template< class T > struct is_member_function_pointer : is_member_function_pointer_helper< typename std::remove_cv<T>::type > {};
Exemple
#include <type_traits> class A { void member_function() { } }; // fails at compile time if A does not contain member_function as a function. static_assert<std::is_member_function_pointer<decltype(&A::member_function)>::value, "Class does not contain member.");
Voir aussi
(C++11) |
vérifie si un type est un type pointeur Original: checks if a type is a pointer type The text has been machine-translated via Google Translate. (classe générique) [edit] |
(C++11) |
vérifie si un type est un pointeur vers un objet membre non statique Original: checks if a type is a pointer to a non-static member object The text has been machine-translated via Google Translate. (classe générique) [edit] |
(C++11) |
vérifie si un type est un pointeur vers une fonction membre non statique ou d'un objet Original: checks if a type is a pointer to a non-static member function or object The text has been machine-translated via Google Translate. (classe générique) [edit] |