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feof

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< c‎ | io

 
 
File input/output
Funciones
Original:
Functions
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Acceso a archivos
Original:
File access
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Directo de entrada / salida
Original:
Direct input/output
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fread
fwrite
Entrada sin formato / salida
Original:
Unformatted input/output
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Formato de entrada / salida
Original:
Formatted input/output
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Presentar posicionamiento
Original:
File positioning
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ftell
fgetpos
fseek
fsetpos
rewind
Gestión de errores
Original:
Error handling
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clearerr
feof
ferror
perror
Las operaciones en los archivos
Original:
Operations on files
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remove
rename
tmpfile
tmpnam
 
Defined in header <stdio.h>
int feof( FILE *stream );
Comprueba si el fin de la secuencia de archivo dado se ha alcanzado .
Original:
Checks if the end of the given file stream has been reached.
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Contenido

[editar] Parámetros

stream -
la secuencia de archivo para comprobarlo
Original:
the file stream to check
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[editar] Valor de retorno

valor distinto de cero si el final de la secuencia se ha alcanzado, de lo contrario 0
Original:
nonzero value if the end of the stream has been reached, otherwise 0
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[editar] Notas

Esta función sólo informa sobre el estado corriente según lo informado por la más reciente operación I / O, no examina el origen de datos asociado. Por ejemplo, si la más reciente de E / S fue un fgetc, que devuelve el último byte de un archivo, feof devuelve no-cero. El próximo fgetc falla y cambia el estado corriente de al final de su archivo. Sólo entonces feof devuelve cero .
Original:
This function only reports the stream state as reported by the most recent I/O operation, it does not examine the associated data source. For example, if the most recent I/O was a fgetc, which returned the last byte of a file, feof returns non-zero. The next fgetc fails and changes the stream state to end-of-file. Only then feof returns zero.
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En el uso típico, el procesamiento de flujo de entrada se detiene en cualquier error; feof ferrror y se utilizan entonces para distinguir entre diferentes circunstancias de error .
Original:
In typical usage, input stream processing stops on any error; feof and ferrror are then used to distinguish between different error conditions.
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[editar] Ejemplo

#include <stdio.h>
#include <stdlib.h>
 
int main()
{
    FILE* fp = fopen("test.txt", "r");
    if(!fp) {
        perror("File opening failed");
        return EXIT_FAILURE;
    }
 
    int c; // note: int, not char, required to handle EOF
    while ((c = fgetc(fp)) != EOF) { // typical file reading loop
       putchar(c);
    }
 
    if (ferror(fp))
        puts("I/O error when reading");
    else if (feof(fp))
        puts("End of file reached successfully");
}


[editar] Ver también

borra los errores
Original:
clears errors
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(función) [edit]
muestra una cadena de caracteres correspondiente del error actual a stderr
Original:
displays a character string corresponding of the current error to stderr
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(función) [edit]
comprueba si hay un error de archivo
Original:
checks for a file error
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(función) [edit]