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std::basic_ostream::basic_ostream

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< cpp‎ | io‎ | basic ostream

 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
Original:
Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleto)
Arroyos
Original:
Streams
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Abstracciones
Original:
Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
Original:
File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Cadena de I / O
Original:
String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
Original:
Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
Original:
Types
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streamoff
streamsize
fpos
Error interfaz categoría
Original:
Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
std::basic_ostream
Los objetos globales
Original:
Global objects
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Las funciones miembro
Original:
Member functions
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basic_ostream::basic_ostream
basic_ostream::~basic_ostream
basic_ostream::operator=(C++11)
Entrada con formato
Original:
Formatted input
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basic_ostream::operator<<
Entrada sin formato
Original:
Unformatted input
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basic_ostream::put
basic_ostream::write
Posicionamiento
Original:
Positioning
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basic_ostream::tellp
basic_ostream::seekp
Varios
Original:
Miscellaneous
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basic_ostream::flush
basic_ostream::swap(C++11)
Clases de miembros
Original:
Member classes
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basic_ostream::sentry
Terceros funciones
Original:
Non-member functions
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operator<<(std::basic_ostream)
 
explicit basic_ostream( std::basic_streambuf<CharT, Traits>* sb );
(1)
protected:
basic_ostream( const basic_ostream& rhs ) = delete;
(2)
protected:
basic_ostream( basic_ostream&& rhs );
(3) (desde C++11)
1)
Construye el objeto basic_ostream, asignar valores iniciales a la clase base llamando basic_ios::init(sb) .
Original:
Constructs the basic_ostream object, assigning initial values to the base class by calling basic_ios::init(sb).
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2)
El constructor de copia está protegida, y se elimina. Flujos de salida no son copiables .
Original:
The copy constructor is protected, and is deleted. Output streams are not copyable.
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3)
El constructor movimiento basic_ios<CharT, Traits>::move(rhs) utiliza para mover todos los miembros basic_ios, a excepción de la rdbuf(), de rhs en *this. Este constructor movimiento está protegido: es llamado por los constructores de muebles se mueven las clases de flujo de salida std::basic_ofstream y std::basic_ostringstream, que sabe cómo mover correctamente el streambuffer asociado .
Original:
The move constructor uses basic_ios<CharT, Traits>::move(rhs) to move all basic_ios members, except for the rdbuf(), from rhs into *this. This move constructor is protected: it is called by the move constructors of movable output stream classes std::basic_ofstream and std::basic_ostringstream, which know how to correctly move the associated streambuffer.
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[editar] Parámetros

sb -
streambuffer utilizar como secuencia de salida
Original:
streambuffer to use as output sequence
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rhs -
basic_ostream para inicializar desde
Original:
basic_ostream to initialize from
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[editar] Ejemplo

#include <sstream>
#include <utility>
#include <iostream>
int main()
{
//  std::ostream myout(std::cout);              // ERROR: copy ctor is deleted
    std::ostream myout(std::cout.rdbuf());      // OK: shares buffer with cout
//  std::ostream s2(std::move(std::ostringstream() << 7.1));       // ERROR: move constructor
                                                                   // is protected
    std::ostringstream s2(std::move(std::ostringstream() << 7.1)); // OK: move ctor called
                                                                   // through the derived class
    myout << s2.str() << '\n';
}

Output:

7.1