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std::basic_istream::swap

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< cpp‎ | io‎ | basic istream

 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
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Buffers
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(obsoleto)
Arroyos
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Streams
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Abstracciones
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Abstractions
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File I / O
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File I/O
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Cadena de I / O
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String I/O
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Matriz I / O
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Array I/O
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(obsoleto)
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Tipos
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Types
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Error interfaz categoría
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Error category interface
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(C++11)
 
std::basic_istream
Los objetos globales
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Global objects
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Las funciones miembro
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Member functions
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Entrada con formato
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Formatted input
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Entrada sin formato
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Unformatted input
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Posicionamiento
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Positioning
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Varios
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Miscellaneous
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basic_istream::swap
(C++11)
Clases de miembros
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Member classes
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Terceros funciones
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Non-member functions
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protected:
void swap(basic_istream& rhs);
(desde C++11)
Llamadas basic_ios::swap(rhs) para intercambiar todos los miembros de datos de la clase base, excepto rdbuf() y swaps los valores de los contadores de gcount() entre *this y rhs. Esta función de intercambio es protegida: se llama a las funciones de intercambio de las clases de flujo de entrada intercambiables std::basic_ifstream y std::basic_istringstream, que sabe cómo intercambiar correctamente los streambuffers asociados .
Original:
Calls basic_ios::swap(rhs) to swap all data members of the base class except for rdbuf(), and swaps the values of the gcount() counters between *this and rhs. This swap function is protected: it is called by the swap functions of the swappable input stream classes std::basic_ifstream and std::basic_istringstream, which know how to correctly swap the associated streambuffers.
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[editar] Parámetros

rhs -
basic_istream objeto diferente del mismo tipo para intercambiar con
Original:
different basic_istream object of the same type to swap with
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[editar] Ejemplo

#include <sstream>
#include <iostream>
#include <utility>
int main()
{
    std::istringstream s1("hello");
    std::istringstream s2("bye");
 
    s1.swap(s2); // OK, istringstream has a public swap()
    std::swap(s1, s2); // OK, calls s1.swap(s2)
//  std::cin.swap(s2); // ERROR: swap is a protected member
 
    std::cout << s1.rdbuf();
}

Salida:

hello