NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

FCLOSE(3)                 Linux Programmer's Manual                FCLOSE(3)

NAME         top

       fclose - close a stream

SYNOPSIS         top

       #include <stdio.h>

       int fclose(FILE *stream);

DESCRIPTION         top

       The fclose() function flushes the stream pointed to by stream
       (writing any buffered output data using fflush(3)) and closes the
       underlying file descriptor.

RETURN VALUE         top

       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
       undefined behavior.

ERRORS         top

       EBADF  The file descriptor underlying stream 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).

ATTRIBUTES         top

       For an explanation of the terms used in this section, see
       attributes(7).

       ┌──────────┬───────────────┬─────────┐
       │Interface Attribute     Value   │
       ├──────────┼───────────────┼─────────┤
       │fclose()  │ Thread safety │ MT-Safe │
       └──────────┴───────────────┴─────────┘

CONFORMING TO         top

       POSIX.1-2001, POSIX.1-2008, C89, C99.

NOTES         top

       Note that fclose() flushes only 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
       fsync(2).

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 4.07 of the Linux man-pages project.  A
       description of the project, information about reporting bugs, and the
       latest version of this page, can be found at
       https://www.kernel.org/doc/man-pages/.

GNU                              2015-08-08                        FCLOSE(3)