Espaces de noms
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    std::result_of

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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
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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
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    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
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    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
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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)
     
    <tbody> </tbody>
    Déclaré dans l'en-tête <type_traits>
    template< class > class result_of; //not defined
    		 (1) (depuis C++11)
    template< class F, class... ArgTypes > class result_of<F(ArgTypes...)>;
    		 (2) (depuis C++11)
    Déduit le type de retour d'une expression d'appel de fonction au moment de la compilation .
    Original:
    Deduces the return type of a function call expression at compile time.
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    Types de membres

    Type du membre Définition
    type
    le type de retour de la fonction F si elle est appelée avec le ArgTypes... arguments
    Original:
    the return type of the function F if called with the arguments ArgTypes...
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    Mise en œuvre possible

    template<class>
struct result_of;

template<class F, class... ArgTypes>
struct result_of<F(ArgTypes...)>
{
    typedef decltype(
                     std::declval<F>()(std::declval<ArgTypes>()...)
                    ) type;
};

    Exemple

    struct S {
    double operator()(char, int&);
};

int main()
{
    std::result_of<S(char, int&)>::type f = 3.14; // f has type double
}


    Voir aussi

    (C++11)
    obtient le type d'expression dans un contexte non évaluée
    Original:
    obtains the type of expression in unevaluated context
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    (fonction générique) [edit]