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std::basic_istream::~basic_istream

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(C++11)
 
std::basic_istream
Los objetos globales
Original:
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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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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virtual ~basic_istream();
Destruye la corriente de entrada .
Original:
Destructs the input stream.
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Notas

Este destructor no lleva a cabo ninguna operación en la streambuffer subyacente (rdbuf()): los destructores de los flujos de entrada derivados como std::basic_ifstream y std::basic_istringstream son responsables de llamar a los destructores de los streambuffers .
Original:
This destructor does not perform any operation on the underlying streambuffer (rdbuf()): the destructors of the derived input streams such as std::basic_ifstream and std::basic_istringstream are responsible for calling the destructors of the streambuffers.
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Ejemplo

#include <sstream>
#include <iostream>

void print_stringbuf(std::streambuf* p)
{
    std::istream buf(p); // buf shares the buffer with s1
    int n;
    buf >> n;
    std::cout << n;
} // calls the destructor of buf. p remains unaffected

int main()
{
    std::istringstream s1("10 20");
    print_stringbuf(s1.rdbuf());
    int n;
    s1 >> n;
    std::cout << ',' << n << '\n';
}

Salida:

10,20