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std::basic_streambuf::showmanyc

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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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(obsoleto)
Arroyos
Original:
Streams
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Abstracciones
Original:
Abstractions
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File I / O
Original:
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)
(obsoleto)
(obsoleto)
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_streambuf
Las funciones públicas miembros
Original:
Public member functions
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Locales
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Locales
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Posicionamiento
Original:
Positioning
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Obtenga zona
Original:
Get area
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Ponga zona
Original:
Put area
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Dos puntos
Original:
Putback
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Protegido funciones miembro
Original:
Protected member functions
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Locales
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Locales
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Posicionamiento
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Positioning
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Obtenga zona
Original:
Get area
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basic_streambuf::showmanyc
Ponga zona
Original:
Put area
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Dos puntos
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Putback
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protected:
std::streamsize showmanyc();
Estima el número de caracteres disponibles para la entrada en la secuencia de caracteres asociados. underflow() se garantiza que no se vuelva traits::eof() por lo menos hasta que se extraen muchos personajes .
Original:
Estimates the number of characters available for input in the associated character sequence. underflow() is guaranteed not to return traits::eof() until at least that many characters are extracted.
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Contenido

[editar] Parámetros

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

El número de caracteres disponibles en la secuencia, o -1 si no hay caracteres disponibles. En ese caso, underflow() y uflow() fallará .
Original:
The number of characters available in the sequence, or -1 if no characters are available. In that case, underflow() and uflow() will fail.
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La versión de la clase base devuelve 0 .
Original:
The base class version returns 0.
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[editar] Ejemplo

[editar] Ver también

obtiene el número de caracteres disponibles de inmediato en la zona get
Original:
obtains the number of characters immediately available in the get area
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(función miembro público) [editar]
[virtual]
proporciona opcionalmente el número de caracteres disponibles para la entrada de los autos
Original:
optionally provides the number of characters available for input from the file
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(función miembro virtual protegido de std::basic_filebuf) [editar]