Varianti

    std::result_of

    Da cppreference.com.

    Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.

    La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui.

    Click here for the English version of this page

    <metanoindex/>

     
    C++
     
    Utilità libreria
    Tipo di supporto (basic types, RTTI, type traits)
    Gestione della memoria dinamica
    La gestione degli errori
    Programma di utilità
    Funzioni variadic
    Data e ora
    Funzione oggetti
    initializer_list(C++11)
    bitset
    hash(C++11)
    Gli operatori relazionali
    Original:
    Relational operators
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    rel_ops::operator!=
    rel_ops::operator>
    rel_ops::operator<=
    rel_ops::operator>=
    Coppie e tuple
    Original:
    Pairs and tuples
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    pair
    tuple(C++11)
    piecewise_construct_t(C++11)
    piecewise_construct(C++11)
    Swap, in avanti e spostare
    Original:
    Swap, forward and move
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    swap
    forward(C++11)
    move(C++11)
    move_if_noexcept(C++11)
    declval(C++11)
     
    Tipo di supporto
    Tipi base
    Original:
    Basic types
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Tipi fondamentali
    Larghezza fissa interi tipi (C++11)
    Limiti numerici
    Original:
    Numeric limits
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    numeric_limits
    C numerico limita interfaccia
    Informazioni sul tipo di runtime
    Original:
    Runtime type information
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Tipo tratti
    Original:
    Type traits
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    Categorie di tipo primario
    Original:
    Primary type categories
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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)
    Proprietà del tipo
    Original:
    Type properties
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    is_const(C++11)
    is_volatile(C++11)
    is_pod(C++11)
    is_empty(C++11)
    is_polymorphic(C++11)
    is_abstract(C++11)
    Operazioni supportate
    Original:
    Supported operations
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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)
    I rapporti e le query di proprietà
    Original:
    Relationships and property queries
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    is_same(C++11)
    is_base_of(C++11)
    is_convertible(C++11)
    alignment_of(C++11)
    rank(C++11)
    extent(C++11)
    Tipo modifiche
    Original:
    Type modifications
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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)
    Tipo di trasformazioni
    Original:
    Type transformations
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    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)
    Digitare costanti tratto
    Original:
    Type trait constants
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    integral_constant(C++11)
     
    <tbody> </tbody>
    Elemento definito nell'header <type_traits>
    template< class > class result_of; //not defined
    		 (1) (dal C++11)
    template< class F, class... ArgTypes > class result_of<F(ArgTypes...)>;
    		 (2) (dal C++11)
    Deduce il tipo di ritorno di una espressione chiamata di funzione al momento della compilazione.
    Original:
    Deduces the return type of a function call expression at compile time.
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Membri tipi

    Membro tipo
    Original:
    Member type
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.
    		 Definition
    type
    il tipo di ritorno della funzione se F chiamata con il ArgTypes... argomenti
    Original:
    the return type of the function F if called with the arguments ArgTypes...
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    Possibile implementazione

    template<class>
struct result_of;

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

    Esempio

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

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


    Vedi anche

    (C++11)
    ottiene il tipo di espressione in un contesto non valutata
    Original:
    obtains the type of expression in unevaluated context
    The text has been machine-translated via Google Translate.
    You can help to correct and verify the translation. Click here for instructions.

    (funzione di modello) [modifica]