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std::is_member_function_pointer

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< cpp‎ | types

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C++
 
Bibliothèque d'utilitaires
 
Soutien aux types fondamentaux
Les types de base
Original:
Basic types
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Types fondamentaux
Fixe les types entiers largeur (C++11)
Limites numériques
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Numeric limits
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numeric_limits
C numérique limite interface
Informations sur le type d'exécution
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Runtime type information
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Caractères de type
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Type traits
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Catégories de type primaire
Original:
Primary type categories
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is_void (C++11)
is_array (C++11)
is_pointer (C++11)
is_enum (C++11)
is_union (C++11)
is_class (C++11)
is_function (C++11)
is_object (C++11)
is_scalar (C++11)
is_compound (C++11)
is_integral (C++11)
is_floating_point (C++11)
is_fundamental (C++11)
is_arithmetic (C++11)
is_reference (C++11)
is_lvalue_reference (C++11)
is_rvalue_reference (C++11)
is_member_pointer (C++11)
is_member_object_pointer (C++11)
is_member_function_pointer (C++11)
Les propriétés du type
Original:
Type properties
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is_const (C++11)
is_volatile (C++11)
is_pod (C++11)
is_empty (C++11)
is_polymorphic (C++11)
is_abstract (C++11)
Opérations prises en charge
Original:
Supported operations
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is_constructible
is_trivially_constructible
is_nothrow_constructible		 (C++11)
(C++11)
(C++11)
is_default_constructible
is_trivially_default_constructible
is_nothrow_default_constructible		 (C++11)
(C++11)
(C++11)
is_copy_constructible
is_trivially_copy_constructible
is_nothrow_copy_constructible		 (C++11)
(C++11)
(C++11)
is_move_constructible
is_trivially_move_constructible
is_nothrow_move_constructible		 (C++11)
(C++11)
(C++11)
is_assignable
is_trivially_assignable
is_nothrow_assignable		 (C++11)
(C++11)
(C++11)
is_copy_assignable
is_trivially_copy_assignable
is_nothrow_copy_assignable		 (C++11)
(C++11)
(C++11)
is_move_assignable
is_trivially_move_assignable
is_nothrow_move_assignable		 (C++11)
(C++11)
(C++11)
is_destructible
is_trivially_destructible
is_nothrow_destructible		 (C++11)
(C++11)
(C++11)
has_virtual_destructor (C++11)
Les relations et les requêtes de propriété
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Relationships and property queries
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is_same (C++11)
is_base_of (C++11)
is_convertible (C++11)
alignment_of (C++11)
rank (C++11)
extent (C++11)
Modifications de type
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Type modifications
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remove_cv
remove_const
remove_volatile		 (C++11)
(C++11)
(C++11)
add_cv
add_const
add_volatile		 (C++11)
(C++11)
(C++11)
make_signed (C++11)
make_unsigned (C++11)
Transformations de type
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Type transformations
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aligned_storage (C++11)
aligned_union (C++11)
decay (C++11)
enable_if (C++11)
conditional (C++11)
common_type (C++11)
underlying_type (C++11)
result_of (C++11)
Tapez constantes traits
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Type trait constants
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integral_constant (C++11)
 
Déclaré dans l'en-tête <type_traits>
template< class T >
struct is_member_function_pointer;
 (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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Sommaire

Inherited from std::integral_constant

Member constants

value
[
statique
Original:
static
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]
true si T is a member function pointer type , false autrement
Original:
true if T is a member function pointer type , false otherwise
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(constante membre statique publique)

Member functions

operator bool
convertit l'objet en bool, retourne value
Original:
converts the object to bool, returns value
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(fonction membre publique)

Member types

Type d'
Original:
Type
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 Definition
value_type bool
type std::integral_constant<bool, value>

[modifier] 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
                                    > {};

[modifier] 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.");


[modifier] Voir aussi

(C++11)
vérifie si un type est un type pointeur
Original:
checks if a type is a pointer type
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(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
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(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
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(classe générique) [edit]
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