FCLOSE(3) Linux Programmer's Manual FCLOSE(3)NAMEfclose - close a stream
int fclose(FILE *fp);
The fclose() function will flushes the stream pointed to by fp (writing
any buffered output data using fflush(3)) and closes the underlying
Upon successful completion 0 is returned. Otherwise, EOF is returned
and errno is set to indicate the error. In either case any further
access (including another call to fclose()) to the stream results in
EBADF The file descriptor 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).
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, for example, with sync(2) or
SEE ALSOclose(2), fcloseall(3), fflush(3), fopen(3), setbuf(3)COLOPHON
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GNU 2009-02-23 FCLOSE(3)