std::tuple_cat

 

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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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... Tuples> tuple<CTypes...> tuple_cat(Tuples&&... args);		(dal C++11)

Costruisce una tupla che è una concatenazione di tutte le tuple in args.

Original:

Constructs a tuple that is a concatenation of all tuples in args.

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Parametri

args

-

zero o più tuple da concatenare Original: zero or more tuples to concatenate 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

Un oggetto std::tuple composto da tutti gli elementi di tutte le tuple degli argomenti costruiti da std::get<i>(std::forward<Ti>(arg)) per ogni singolo elemento.

Original:

A std::tuple object composed of all elements of all argument tuples constructed from std::get<i>(std::forward<Ti>(arg)) for each individual element.

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Esempio

#include <iostream>#include <tuple>#include <string>   // helper function to print a tuple of any sizetemplate<class Tuple, std::size_t N>struct TuplePrinter {staticvoid print(const Tuple& t){ TuplePrinter<Tuple, N-1>::print(t);std::cout<<", "<< std::get<N-1>(t);}};   template<class Tuple>struct TuplePrinter<Tuple, 1>{staticvoid print(const Tuple& t){std::cout<< std::get<0>(t);}};   template<class... Args>void print(conststd::tuple<Args...>& t){std::cout<<"("; TuplePrinter<decltype(t), sizeof...(Args)>::print(t);std::cout<<")\n";}// end helper function   int main(){std::tuple<int, std::string, float> t1(10, "Test", 3.14);int n =7;auto t2 = std::tuple_cat(t1, std::make_pair("Foo", "bar"), t1, std::tie(n)); n =10; print(t2);}

Output:

(10, Test, 3.14, Foo, bar, 10, Test, 3.14, 10)

make_tuple	crea un oggetto tuple del tipo definito dai tipi di argomenti Original: creates a tuple object of the type defined by the argument types 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)
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)