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std::tuple::swap

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< cpp‎ | utility‎ | tuple

 
 
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rel_ops::operator!=
rel_ops::operator>
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Pairs and tuples
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pair
tuple(C++11)
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piecewise_construct(C++11)
Troque, avançar e avançar
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Swap, forward and move
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swap
forward(C++11)
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std::tuple
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Defined in header <tuple>
void swap( tuple& other );
(a partir do C++ 11)
Chama std::swap para cada elemento em *this e seu elemento correspondente em other.
Original:
Calls std::swap for each element in *this and its corresponding element in other.
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Índice

[editar] Parâmetros

other -
tupla de valores para trocar
Original:
tuple of values to swap
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[editar] Valor de retorno

(Nenhum)
Original:
(none)
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[editar] Exceções

noexcept specification:  (a partir do C++ 11)
noexcept(

    noexcept(swap(std::declval<T0&>>(), std::declval<T0&>())) &&
    noexcept(swap(std::declval<T1&>>(), std::declval<T1&>())) &&
    noexcept(swap(std::declval<T2&>>(), std::declval<T2&>())) &&
    ...

)

[editar] Exemplo

#include <iostream>
#include <tuple>
#include <string>
 
int main()
{
    std::tuple<int, std::string, float> p1, p2;
    p1 = std::make_tuple(10, "test", 3.14);
    p2.swap(p1);
    std::cout << "("  << std::get<0>(p2)
              << ", " << std::get<1>(p2)
              << ", " << std::get<2>(p2) << ")\n";
}

Output:

(10, test, 3.14)

[editar] Veja também