Namespace
Varianti

std::function::target

Da cppreference.com.
< cpp‎ | utility‎ | functional‎ | function

 
 
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
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
Original:
Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
Original:
Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Funzione oggetti
Funzione wrapper
Original:
Function wrappers
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function(C++11)
mem_fn(C++11)
bad_function_call(C++11)
Associare
Original:
Bind
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bind(C++11)
is_bind_expression(C++11)
is_placeholder(C++11)
_1, _2, _3, ...(C++11)
Wrapper di riferimento
Original:
Reference wrappers
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reference_wrapper(C++11)
ref
cref
(C++11)
(C++11)
Operatore wrapper
Original:
Operator wrappers
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Negatori
Original:
Negators
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Sconsigliata a leganti e adattatori
Original:
Deprecated binders and adaptors
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unary_function(deprecato)
binary_function(deprecato)
ptr_fun(deprecato)
pointer_to_unary_function(deprecato)
pointer_to_binary_function(deprecato)
mem_fun(deprecato)
mem_fun_t
mem_fun1_t
const_mem_fun_t
const_mem_fun1_t
(deprecato)
(deprecato)
(deprecato)
(deprecato)
mem_fun_ref(deprecato)
mem_fun_ref_t
mem_fun1_ref_t
const_mem_fun_ref_t
const_mem_fun1_ref_t
(deprecato)
(deprecato)
(deprecato)
(deprecato)
binder1st
binder2nd
(deprecato)
(deprecato)
bind1st
bind2nd
(deprecato)
(deprecato)
 
std::function
Membri funzioni
Original:
Member functions
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function::function
function::~function
function::operator=
function::swap
function::assign
function::operator bool
function::operator()
function::target_type
function::target
Non membri funzioni
Original:
Non-member functions
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operator==
operator!=
std::swap(std::function)
Helper classi
Original:
Helper classes
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std::uses_allocator<std::function>
 
template< class T >
T* target();
(1) (dal C++11)
template< class T >
const T* target() const;
(2) (dal C++11)
Restituisce un puntatore al target funzione memorizzata.
Original:
Returns a pointer to the stored function target.
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Indice

[modifica] Parametri

(Nessuno)
Original:
(none)
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[modifica] Valore di ritorno

Un puntatore alla funzione memorizzata se target_type() == typeid(T), altrimenti un puntatore nullo.
Original:
A pointer to the stored function if target_type() == typeid(T), otherwise a null pointer.
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[modifica] Eccezioni

noexcept specification:  
noexcept
  (dal C++11)

[modifica] Esempio

[modifica] Vedi anche

ottiene il typeid del target memorizzato di un std::function
Original:
obtains the typeid of the stored target of a std::function
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(membro pubblico funzione) [edit]