DragonFly On-Line Manual Pages
FCLOSE(3) DragonFly Library Functions Manual FCLOSE(3)
fclose, fcloseall -- close a stream
Standard C Library (libc, -lc)
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 DragonFly are bug free. This behaviour
is an implementation detail, and programs should not rely upon it.
close(2), fflush(3), fopen(3), setbuf(3)
The fclose() function conforms to ISO/IEC 9899:1990 (``ISO C90'').
The fcloseall() function first appeared in DragonFly 2.3.
DragonFly 3.9 April 22, 2006 DragonFly 3.9