std::make_tuple

 

C++

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Espressioni regolari(C++11)

Operazioni atomicche(C++11)

Multithreading(C++11)

 

Utilità libreria

Tipo di supporto (basic types, RTTI, type traits)

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Programma di utilità

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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)

 

std::tuple

Membri funzioni Original: Member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

tuple::tuple

tuple::operator=

tuple::swap

Non membri funzioni Original: Non-member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

make_tuple

tie

forward_as_tuple

None

operator= operator!= operator< operator<= operator> operator>=

std::swap

get

Helper classi Original: Helper classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

tuple_size

tuple_element

uses_allocator

ignore

 

Elemento definito nell'header <tuple>
template<class... Types> tuple<VTypes...> make_tuple( Types&&... args);		(dal C++11)

Creates a tuple object, deducing the target type from the types of arguments. The deduced types are std::decay<Ti>::type (transformed as if passed to a function by value) unless application of std::decay results in std::reference_wrapper<X> for some type X, in which case the deduced type is is X&.

Parametri

args

-

zero o più argomenti per costruire la tupla da Original: zero or more arguments to construct the tuple from The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

A std::tuple object containing the given values.

Esempio

#include <iostream>#include <tuple>#include <functional>   int main(){auto t1 = std::make_tuple(10, "Test", 3.14);std::cout<<"The value of t1 is "<<"("<< std::get<0>(t1)<<", "<< std::get<1>(t1)<<", "<< std::get<2>(t1)<<")\n";   int n =1;auto t2 = std::make_tuple(std::ref(n), n); n =7;std::cout<<"The value of t2 is "<<"("<< std::get<0>(t2)<<", "<< std::get<1>(t2)<<")\n";}

Output:

The value of t1 is (10, Test, 3.14) The value of t2 is (7, 1)

tie	crea un tuple di riferimenti lvalue o spacchetta una tupla in singoli oggetti Original: creates a tuple of lvalue references or unpacks a tuple into individual objects 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)
forward_as_tuple	crea un tuple di riferimenti rvalue Original: creates a tuple of rvalue references 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)
tuple_cat	crea un tuple concatenando un numero qualsiasi di tuple Original: creates a tuple by concatenating any number of tuples 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)