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std::tuple::swap

De cppreference.com
< cpp‎ | utility‎ | tuple

 
 
Utilidades de la biblioteca
Escriba apoyo (basic types, RTTI, type traits)
Gestión de memoria dinámica
Gestión de errores
Programa de servicios públicos
Funciones variadic
Fecha y hora
Objetos Function
(C++11)
Operadores relacionales
Original:
Relational operators
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Pares y tuplas
Original:
Pairs and tuples
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(C++11)
Cambiar, hacia adelante y mover
Original:
Swap, forward and move
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(C++11)
(C++11)
(C++11)
 
std::tuple
Las funciones miembro
Original:
Member functions
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tuple::swap
Terceros funciones
Original:
Non-member functions
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Clases de ayuda
Original:
Helper classes
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Definido en la cabecera <tuple>
void swap( tuple& other );
(desde C++11)
std::swap llama para cada elemento en *this y su elemento correspondiente en other .
Original:
Calls std::swap for each element in *this and its corresponding element in other.
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Contenido

[editar] Parámetros

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

(Ninguno)
Original:
(none)
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[editar] Excepciones

noexcept specification:  (desde 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] Ejemplo

#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";
}

Salida:

(10, test, 3.14)

[editar] Ver también