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std::streamoff

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< cpp‎ | io

 
 
Entrada / salida de la biblioteca
I / O manipuladores
C-estilo I / O
Buffers
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Buffers
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basic_streambuf
basic_filebuf
basic_stringbuf
strstreambuf(obsoleto)
Arroyos
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Streams
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Abstracciones
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Abstractions
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ios_base
basic_ios
basic_istream
basic_ostream
basic_iostream
File I / O
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File I/O
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basic_ifstream
basic_ofstream
basic_fstream
Cadena de I / O
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String I/O
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basic_istringstream
basic_ostringstream
basic_stringstream
Matriz I / O
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Array I/O
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istrstream(obsoleto)
ostrstream(obsoleto)
strstream(obsoleto)
Tipos
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Types
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streamoff
streamsize
fpos
Error interfaz categoría
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Error category interface
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iostream_category(C++11)
io_errc(C++11)
 
Defined in header <ios>
typedef /*unspecified*/ streamoff;
El std::streamoff tipo es un tipo firmado integral de tamaño suficiente para representar el tamaño de archivo máximo posible soportado por el sistema operativo. Normalmente, este es un typedef a long long .
Original:
The type std::streamoff is a signed integral type of sufficient size to represent the maximum possible file size supported by the operating system. Typically, this is a typedef to long long.
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Se utiliza para representar las compensaciones de posiciones en el flujo (valores de std::fpos tipo). Un valor de std::streamoff -1 también se utiliza para representar las condiciones de error por algunas de las funciones de la biblioteca de E / S .
Original:
It is used to represent offsets from stream positions (values of type std::fpos). A std::streamoff value of -1 is also used to represent error conditions by some of the I/O library functions.
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[editar] Relación con std :: FPO

  • la diferencia entre dos objetos std::fpos es un valor de std::streamoff tipo
    Original:
    the difference between two std::fpos objects is a value of type std::streamoff
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  • un valor de std::streamoff tipo puede añadirse o restarse de std::fpos produciendo un std::fpos diferente .
    Original:
    a value of type std::streamoff may be added or subtracted from std::fpos yielding a different std::fpos.
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  • un valor de tipo std::fpos es implícitamente convertible a std::streamoff (los resultados de la conversión en el desplazamiento desde el principio del archivo .
    Original:
    a value of type std::fpos is implicitly convertible to std::streamoff (the conversion results in the offset from the beginning of the file.
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  • std::fpos un valor de tipo se puede construir a partir de un valor de tipo std::streamoff
    Original:
    a value of type std::fpos is constructible from a value of type std::streamoff
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[editar] Ver también

representa la posición absoluta en una corriente o un archivo
Original:
represents absolute position in a stream or a file
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(clase de plantilla)
sets the input position indicator
(miembro público of std::basic_istream función) [edit]
establece el indicador de posición de salida
Original:
sets the output position indicator
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(miembro público of std::basic_ostream función) [edit]