fclose: zavřít proud

Originální popis anglicky: fclose - close a stream

Návod, kniha: Linux Programmer's Manual

STRUČNĚ

#include <stdio.h> int fclose(FILE *fp);

POPIS / INSTRUKCE

The fclose function will flush the stream pointed to by fp (writing any buffered output data using fflush(3)) and close the underlying file descriptor.

NÁVRATOVÁ HODNOTA

Upon successful completion 0 is returned. Otherwise, EOF is returned and the global variable errno is set to indicate the error. In either case any further access (including another call to fclose()) to the stream results in undefined behaviour.

CHYBY / ERRORY

EBADF

The filedescriptor underlying fp is not valid.

The fclose function may also fail and set errno for any of the errors specified for the routines close(2), write(2) or fflush(3).

NOTES

Note that fclose only flushes the user space buffers provided by the C library. To ensure that the data is physically stored on disk the kernel buffers must be flushed too, e.g. with sync(2) or fsync(2).

ODPOVÍDAJÍCÍ

The fclose function conforms to ANSI X3.159-1989 (``ANSI C'').

SOUVISEJÍCÍ

close(2), fcloseall(3), fflush(3), fopen(3), setbuf(3)