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std::basic_streambuf::in_avail

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< cpp‎ | io‎ | basic streambuf
 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
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Buffers
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(obsoleto)
Arroyos
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Streams
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Abstracciones
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Abstractions
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File I / O
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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
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Public 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
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Get area
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basic_streambuf::in_avail
Ponga zona
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Put area
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Dos puntos
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Putback
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Protegido funciones miembro
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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
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Get area
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Ponga zona
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Put area
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Dos puntos
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Putback
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std::streamsize in_avail();
Devuelve el número de caracteres disponibles en la zona get. Si una posición de lectura está disponible, devuelve egptr() - gptr() efectivamente, el tamaño de la zona de obtención. En este caso, el número de bytes devuelto es el número de bytes que se pueden extraer de la memoria intermedia sin llamar underflow() .
Original:
Returns the number of characters available in the get area. If a read position is available, effectively returns egptr() - gptr(), the size of the get area. In this case, the number of bytes returned is the number of bytes that can be extracted from the buffer without calling underflow().
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Si el área get está vacío, llama showmanyc() para determinar el número de bytes disponibles en la secuencia de caracteres asociado. En este caso, el valor devuelto es el número de bytes que se pueden extraer de la memoria intermedia, mientras que se garantiza que no se underflow() Traits::eof volver .
Original:
If the get area is empty, calls showmanyc() to determine the number of bytes available in the associated character sequence. In this case, the value returned is the number of bytes that can be extracted from the buffer while it's guaranteed that underflow() would not return Traits::eof.
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Contenido

[editar] Parámetros

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

El número de caracteres disponibles en el área get o en la secuencia de caracteres asociada, o -1 si no hay caracteres están disponibles en la secuencia asociada .
Original:
The number of characters available in the get area or in the associated character sequence, or -1 if no characters are available in the associated sequence.
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[editar] Ejemplo

[editar] Ver también

[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]
extrae los bloques que ya están disponibles los personajes
Original:
extracts already available blocks of characters
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(función miembro público de std::basic_istream) [editar]