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std::basic_streambuf::sputn, std::basic_streambuf::xsputn

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< cpp‎ | io‎ | basic streambuf

 
 
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_streambuf
Las funciones públicas miembros
Original:
Public member functions
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basic_streambuf::~basic_streambuf
Locales
Original:
Locales
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basic_streambuf::pubimbue
basic_streambuf::getloc
Posicionamiento
Original:
Positioning
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basic_streambuf::pubsetbuf
basic_streambuf::pubseekoff
basic_streambuf::pubseekpos
basic_streambuf::pubsync
Obtenga zona
Original:
Get area
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basic_streambuf::in_avail
basic_streambuf::snextc
basic_streambuf::sbumpc
basic_streambuf::sgetc
basic_streambuf::sgetn
Ponga zona
Original:
Put area
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basic_streambuf::sputc
basic_streambuf::sputn
Dos puntos
Original:
Putback
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basic_streambuf::sputbackc
basic_streambuf::sungetc
Protegido funciones miembro
Original:
Protected member functions
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basic_streambuf::basic_streambuf
basic_streambuf::operator=(C++11)
basic_streambuf::swap(C++11)
Locales
Original:
Locales
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basic_streambuf::imbue
Posicionamiento
Original:
Positioning
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basic_streambuf::setbuf
basic_streambuf::seekoff
basic_streambuf::seekpos
basic_streambuf::sync
Obtenga zona
Original:
Get area
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basic_streambuf::showmanyc
basic_streambuf::underflow
basic_streambuf::uflow
basic_streambuf::xsgetn
basic_streambuf::eback
basic_streambuf::gptr
basic_streambuf::egptr
basic_streambuf::gbump
basic_streambuf::setg
Ponga zona
Original:
Put area
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basic_streambuf::xsputn
basic_streambuf::overflow
basic_streambuf::pbase
basic_streambuf::pptr
basic_streambuf::epptr
basic_streambuf::pbump
basic_streambuf::setp
Dos puntos
Original:
Putback
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basic_streambuf::pbackfail
 
std::streamsize sputn( const char_type* s, std::streamsize count );
(1)
protected:
virtual std::streamsize xsputn( const char_type* s, std::streamsize count );
(2)
1)
Llamadas xsputn(s, count) de la clase más derivada .
Original:
Calls xsputn(s, count) of the most derived class.
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2)
Escribe los caracteres count a la secuencia de salida de la matriz de caracteres cuyo primer elemento es apuntado por s. Los personajes están escritos como por los repetidos llamamientos a sputc(). La escritura se detiene cuando se escriben caracteres count o una llamada a sputc() habría regresado traits::eof() .
Original:
Writes count characters to the output sequence from the character array whose first element is pointed to by s. The characters are written as if by repeated calls to sputc(). Writing stops when either count characters are written or a call to sputc() would have returned traits::eof().
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Si el área de poner se llena (pptr()==epptr()), esta función puede llamar overflow(), o lograr el efecto de overflow() que llama por algún otro no especificado,, significa .
Original:
If the put area becomes full (pptr()==epptr()), this function may call overflow(), or achieve the effect of calling overflow() by some other, unspecified, means.
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Contenido

[editar] Parámetros

(Ninguno)
Original:
(none)
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[editar] Valor de retorno

El número de caracteres escrito correctamente .
Original:
The number of characters successfully written.
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[editar] Ejemplo

#include <iostream>
#include <sstream>
 
int main()
{
    std::ostringstream s1;
    std::streamsize sz = s1.rdbuf()->sputn("This is a test", 14);
    s1 << '\n';
    std::cout << "The call to sputn() returned " << sz << '\n'
              << "The output sequence contains " << s1.str();
 
    std::istringstream s2;
    sz = s2.rdbuf()->sputn("This is a test", 14);
    std::cout << "The call to sputn() on an input stream returned " << sz << '\n';
}

Output:

The call to sputn() returned 14
The output sequence contains This is a test
The call to sputn() on an input stream returned 0

[editar] Ver también

Invoca xsgetn()
Original:
invokes xsgetn()
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(miembro público función) [edit]