Espacios de nombres
Variantes
Acciones

std::basic_streambuf::pubsetbuf, std::basic_streambuf::setbuf

De cppreference.com
< cpp‎ | io‎ | basic streambuf
 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
Original:
Buffers
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
(obsoleto)
Arroyos
Original:
Streams
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Abstracciones
Original:
Abstractions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
File I / O
Original:
File I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Cadena de I / O
Original:
String I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Matriz I / O
Original:
Array I/O
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
(obsoleto)
(obsoleto)
(obsoleto)
Tipos
Original:
Types
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Error interfaz categoría
Original:
Error category interface
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
(C++11)
 
std::basic_streambuf
Las funciones públicas miembros
Original:
Public member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Locales
Original:
Locales
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Posicionamiento
Original:
Positioning
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_streambuf::pubsetbuf
Obtenga zona
Original:
Get area
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Ponga zona
Original:
Put area
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Dos puntos
Original:
Putback
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Protegido funciones miembro
Original:
Protected member functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Locales
Original:
Locales
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Posicionamiento
Original:
Positioning
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
basic_streambuf::setbuf
Obtenga zona
Original:
Get area
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Ponga zona
Original:
Put area
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Dos puntos
Original:
Putback
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
 
basic_streambuf<CharT,Traits>* pubsetbuf( char_type* s, std::streamsize n )
(1)
protected:
virtual basic_streambuf<CharT,Traits>* setbuf( char_type* s, std::streamsize n )
(2)
1)
Llamadas setbuf(s, n) de la clase más derivada
Original:
Calls setbuf(s, n) of the most derived class
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
2)
La versión de la clase base de esta función no tiene ningún efecto. Las clases derivadas pueden anular esta función para permitir la remoción o reemplazo de la secuencia de caracteres de control (el buffer) con una matriz proporcionada por el usuario, o para cualquier otro propósito específico de la implementación .
Original:
The base class version of this function has no effect. The derived classes may override this function to allow removal or replacement of the controlled character sequence (the buffer) with a user-provided array, or for any other implementation-specific purpose.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Contenido

[editar] Parámetros

s -
puntero al primer byte en la memoria intermedia proporcionado por el usuario
Original:
pointer to the first byte in the user-provided buffer
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
n -
el número de bytes en el búfer proporcionado por el usuario
Original:
the number of bytes in the user-provided buffer
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Valor de retorno

*this

[editar] Ejemplo

proporcionar un tampón de 10k para la lectura. En Linux, la utilidad strace puede ser utilizado para observar el número real de bytes leídos
Original:
provide a 10k buffer for reading. On linux, the strace utility may be used to observe the actual number of bytes read
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

#include <fstream>
#include <iostream>
#include <string>
 
int main()
{
    int cnt=0;
    std::ifstream file;
    char buf[10241];
    file.rdbuf()->pubsetbuf(buf, sizeof buf);
    file.open("/usr/share/dict/words");
    for (std::string line; getline(file, line); ) {
        cnt++;
    }
 
    std::cout << cnt << '\n';
}


[editar] Ver también

[virtual]
proporciona suministrado por el usuario búfer o sin búfer convierte a esta filebuf
Original:
provides user-supplied buffer or turns this filebuf unbuffered
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(función miembro virtual protegido de std::basic_filebuf) [editar]