FCLOSE(3) | Library Functions Manual | FCLOSE(3) |
fclose
, fcloseall
— close a stream
Standard C Library (libc, -lc)
#include
<stdio.h>
int
fclose
(FILE
*stream);
void
fcloseall
(void);
The
fclose
()
function dissociates the named stream from its
underlying file or set of functions. If the stream was being used for
output, any buffered data is written first, using
fflush(3).
The
fcloseall
()
function calls fclose
() on all open streams.
Upon successful completion 0 is returned. Otherwise,
EOF
is returned and the global variable
errno is set to indicate the error. In either case no
further access to the stream is possible.
The fclose
() function may also fail and
set errno for any of the errors specified for the
routines close(2) or
fflush(3).
The fclose
() function does not handle NULL
arguments; they will result in a segmentation violation. This is intentional
- it makes it easier to make sure programs written under
FreeBSD are bug free. This behaviour is an
implementation detail, and programs should not rely upon it.
The fclose
() function conforms to
ISO/IEC 9899:1990
(“ISO C90”).
The fcloseall
() function first appeared in
FreeBSD 7.0.
April 22, 2006 | macOS 14.6 |