C-style file input/output
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El subconjunto CI / S del C + + biblioteca estándar C-estilo implementa flujo de entrada / salida de las operaciones. La cabecera
<cstdio> proporciona apoyo genérico operación de archivo y las funciones de los suministros estrechos y con carácter multibyte de entrada / salida de capacidades, y la cabecera <cwchar> proporciona funciones de entrada de caracteres de ancho / capacidades de salida . Original:
The C I/O subset of the C++ standard library implements C-style stream input/output operations. The
<cstdio> header provides generic file operation support and supplies functions with narrow and multibyte character input/output capabilities, and the <cwchar> header provides functions with wide character input/output capabilities. The text has been machine-translated via Google Translate.
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Flujos de C son objetos de tipo std::FILE que sólo se puede acceder y manipular a través de punteros de tipo std::FILE* (Nota: aunque puede ser posible crear un objeto local de std::FILE tipo de eliminación de referencias y copiar un FILE* válido, utilizando la dirección de dicha copia en las funciones de E / S es un comportamiento no definido). Cada corriente de C está asociada con un dispositivo externo físico (archivo, secuencia de entrada estándar, una impresora, un puerto serie, etc) .
Original:
C streams are objects of type std::FILE that can only be accessed and manipulated through pointers of type std::FILE* (Note: while it may be possible to create a local object of type std::FILE by dereferencing and copying a valid FILE*, using the address of such copy in the I/O functions is undefined behavior). Each C stream is associated with an external physical device (file, standard input stream, printer, serial port, etc).
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Corrientes de C se pueden utilizar tanto para la entrada sin formato y formateado y de salida. Son sensible a la localidad y pueden realizar todo / multibyte conversiones según sea necesario. A diferencia de C + + arroyos, donde se asocia cada corriente con local propio, todos los flujos de C acceso al objeto mismo lugar: la más reciente instalado con std::setlocale .
Original:
C streams can be used for both unformatted and formatted input and output. They are locale-sensitive and may perform wide/multibyte conversions as necessary. Unlike C++ streams, where each stream is associated with its own locale, all C streams access the same locale object: the one most recently installed with std::setlocale.
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Además de la información específica del sistema necesario para acceder al dispositivo (por ejemplo, un descriptor de archivo POSIX), cada objeto de secuencia C contiene lo siguiente:
Original:
Besides the system-specific information necessary to access the device (e.g. a POSIX file descriptor), each C stream object holds the following:
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1)
Anchura de caracteres: estrecho o ancho
Original:
Character width: narrow or wide
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2)
Buffering estado: sin búfer, la línea de búfer, con búfer completo .
Original:
Buffering state: unbuffered, line-buffered, fully buffered.
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3)
El tampón, el cual puede ser sustituido por un externo, proporcionado por el usuario tampón .
Original:
The buffer, which may be replaced by an external, user-provided buffer.
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4)
Modo I / O: entrada, salida o actualización (tanto de entrada como de salida) .
Original:
I/O mode: input, output, or update (both input and output).
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5)
Binary / indicador de modo de texto .
Original:
Binary/text mode indicator.
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6)
End-of-file indicador de estado .
Original:
End-of-file status indicator.
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7)
Error indicador de estado .
Original:
Error status indicator.
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8)
El archivo indicador de posición (un objeto de tipo std::fpos_t), que, para flujos de caracteres de ancho, incluye el estado de análisis (un objeto de tipo mbstate_t) .
Original:
File position indicator (an object of type std::fpos_t), which, for wide character streams, includes the parse state (an object of type mbstate_t).
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[editar] Funciones
Original: File access The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| se abre un archivo Original: opens a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| abrir una secuencia existente con un nombre diferente Original: open an existing stream with a different name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| cierra un archivo Original: closes a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| sincroniza un flujo de salida con el archivo real Original: synchronizes an output stream with the actual file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| cambia una secuencia de archivos entre el carácter amplio de E / S y el carácter limitado de I / O Original: switches a file stream between wide character I/O and narrow character I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| establece el tampón para una secuencia de archivo Original: sets the buffer for a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| establece el tampón y su tamaño para una secuencia de archivo Original: sets the buffer and its size for a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Direct input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| lee un archivo Original: reads from a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe en un archivo Original: writes to a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Unformatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
Original: Narrow character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| recibe un carácter de una secuencia de archivo Original: gets a character from a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| recibe una cadena de caracteres a partir de una secuencia de archivo Original: gets a character string from a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| Escribe un carácter en una secuencia de archivo Original: writes a character to a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe una cadena de caracteres en una secuencia de archivo Original: writes a character string to a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| dice un personaje de stdin Original: reads a character from stdin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| lee una cadena de caracteres de stdin Original: reads a character string from stdin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe un carácter a stdout Original: writes a character to stdout The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe una cadena de caracteres a stdout Original: writes a character string to stdout The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| pone un personaje nuevo en una secuencia de archivo Original: puts a character back into a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Wide character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| recibe un carácter ancho de una secuencia de archivo Original: gets a wide character from a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| obtiene una cadena amplia de una secuencia de archivo Original: gets a wide string from a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe un carácter ancho a un secuencia de archivo Original: writes a wide character to a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe una cadena ancha para una secuencia de archivo Original: writes a wide string to a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| lee un carácter ancho de stdin Original: reads a wide character from stdin The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| escribe un carácter ancho a stdout Original: writes a wide character to stdout The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| pone un carácter ancho de nuevo en una secuencia de archivo Original: puts a wide character back into a file stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Formatted input/output The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
Original: Narrow/multibyte character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| lee la entrada con formato desde stdin, una secuencia de archivo o un tampón Original: reads formatted input from stdin, a file stream or a buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| (C++11)(C++11)(C++11) |
lee la entrada con formato de stdin, una secuencia de archivo o una buffer con lista de argumentos variable Original: reads formatted input from stdin, a file stream or a buffer using variable argument list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) |
| (C++11) |
Imprime la salida formateada para stdout, una secuencia de archivo o un búfer. (función) |
| imprime el formato de salida a stdout, una secuencia de archivo o una buffer con lista de argumentos variable Original: prints formatted output to stdout, a file stream or a buffer using variable argument list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Wide character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| lee la entrada formateado carácter ancho de stdin, una secuencia de archivo o un tampón Original: reads formatted wide character input from stdin, a file stream or a buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| (C++11)(C++11)(C++11) |
lee la entrada con formato de caracteres anchos de stdin, un stream archivo o un buffer usando la lista de argumentos variable Original: reads formatted wide character input from stdin, a file stream or a buffer using variable argument list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) |
| imprime la salida formateada carácter ancho a stdout, una secuencia de archivo o un tampón Original: prints formatted wide character output to stdout, a file stream or a buffer The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| imprime el formato de salida de caracteres anchos a stdout, un stream archivo o un buffer usando la lista de argumentos variable Original: prints formatted wide character output to stdout, a file stream or a buffer using variable argument list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: File positioning The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| devuelve el indicador de archivo posición actual Original: returns the current file position indicator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| obtiene el indicador de posición del archivo Original: gets the file position indicator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| desplaza el indicador de posición de archivo a una ubicación específica en un archivo Original: moves the file position indicator to a specific location in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| desplaza el indicador de posición de archivo a una ubicación específica en un archivo Original: moves the file position indicator to a specific location in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| mueve el indicador de posición de archivo al principio en un archivo Original: moves the file position indicator to the beginning in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Error handling The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| borra los errores Original: clears errors The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| cheques para el final de archivo Original: checks for the end-of-file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| comprueba si hay un error de archivo Original: checks for a file error The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| muestra una cadena de caracteres correspondiente del error actual a stderr Original: displays a character string corresponding of the current error to stderr The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
Original: Operations on files The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |
| borra un archivo Original: erases a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| cambia el nombre de un archivo Original: renames a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| crea y abre un temporal, auto-eliminación de archivos Original: creates and opens a temporary, auto-removing file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
| devuelve un nombre de archivo único Original: returns a unique filename The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (función) | |
[editar] Tipos
| Definido en el archivo de encabezado
<cstdio> | |
| Tipo
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
| FILE | tipo, capaz de contener toda la información necesaria para controlar una corriente CI / O
Original: type, capable of holding all information needed to control a C I/O stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| fpos_t | tipo, capaz de especificar una posición única en un archivo
Original: type, capable of uniquely specifying a position in a file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[editar] Macros
| Definido en el archivo de encabezado
<cstdio> | |
| stdinstdoutstderr |
expresión de tipo FILE* asociado con la entrada de stream expression FILE* tipo asociado con la salida de stream expression FILE* tipo asociado con la corriente de salida de error Original: expression of type FILE* associated with the input stream expression of type FILE* associated with the output stream expression of type FILE* associated with the error output stream The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| EOF |
expresión constante entera de int tipo y valor negativo Original: integer constant expression of type int and negative value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| FOPEN_MAX |
número de archivos que pueden estar abiertos al mismo tiempo Original: number of files that can be open simultaneously The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| FILENAME_MAX |
el tamaño necesario para una matriz de char a mantener más tiempo el nombre de archivo compatible Original: size needed for an array of char to hold the longest supported file name The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| BUFSIZ |
tamaño del búfer utilizado por std::setbuf Original: size of the buffer used by std::setbuf The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| _IOFBF_IOLBF_IONBF |
argumento para std::setbuf indicando búfer completo de E / O argument a la línea que indica std::setbuf búfer de E / O argument a std::setbuf indicando unbuffered I / O Original: argument to std::setbuf indicating fully buffered I/O argument to std::setbuf indicating line buffered I/O argument to std::setbuf indicating unbuffered I/O The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| SEEK_SETSEEK_CURSEEK_END |
argumento a std::fseek indicando busca de comienzo de la file argument a std::fseek indicando busca desde el position argument archivo actual a std::fseek indicando busca de final del archivo Original: argument to std::fseek indicating seeking from beginning of the file argument to std::fseek indicating seeking from the current file position argument to std::fseek indicating seeking from end of the file The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| TMP_MAX |
número máximo de nombres de archivos únicos que pueden ser generados por std::tmpnam Original: maximum number of unique filenames that can be generated by std::tmpnam The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
| L_tmpnam |
el tamaño necesario para una matriz de char para guardar el resultado de std::tmpnam Original: size needed for an array of char to hold the result of std::tmpnam The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (constante de macro) |
