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    std::is_compound

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    <metanoindex/>

     
    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
    Original:
    Numeric limits
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    numeric_limits
    C numérique limite interface
    Informations sur le type d'exécution
    Original:
    Runtime type information
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    Caractères de type
    Original:
    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
    Original:
    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
    Original:
    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
    Original:
    Type trait constants
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    integral_constant (C++11)
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <type_traits>
    template< class T > struct is_compound;
    		 (depuis C++11)
    Si T est un type composé (qui est, un tableau, la fonction pointeur d'objet, un pointeur de fonction, le pointeur objet membre, un pointeur de fonction membre, de référence, de classe, union ou une énumération, y compris les variantes cv-qualifié), fournit du membre de constante value true égale. Pour tout autre type, value est false .
    Original:
    If T is a compound type (that is, array, function, object pointer, function pointer, member object pointer, member function pointer, reference, class, union, or enumeration, including any cv-qualified variants), 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
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    ]
    true si T is a compound type , false autrement
    Original:
    true if T is a compound 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>

    Notes

    Types de composés sont les types qui sont construits à partir de types fondamentaux. Tout type C + + est soit fondamentale ou composé .
    Original:
    Compound types are the types that are constructed from fundamental types. Any C++ type is either fundamental or compound.
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    Mise en œuvre possible

    template< class T >
struct is_compound : std::integral_constant<bool, !std::is_fundamental<T>::value> {};

    Exemple

    #include <iostream>
#include <type_traits>

int main() {
    class cls {};
    std::cout << (std::is_compound<cls>::value
                     ? "T is compound"
                     : "T is not a compound") << '\n';
    std::cout << (std::is_compound<int>::value
                     ? "T is compound"
                     : "T is not a compound") << '\n';
}

    Résultat : 

    T is compound
T is not a compound

    Voir aussi

    (C++11)
    vérifie si un type est le type fondamental
    Original:
    checks if a type is fundamental type
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    (classe générique) [edit]
    (C++11)
    vérifie si un type est de type scalaire
    Original:
    checks if a type is scalar type
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    (classe générique) [edit]
    (C++11)
    vérifie si un type est le type d'objet
    Original:
    checks if a type is object type
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    (classe générique) [edit]
    (C++11)
    vérifie si un type est un type tableau
    Original:
    checks if a type is an array type
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    (classe générique) [edit]