fclose(S)                      6 January 1993                      fclose(S)


 Name

    fclose, fflush - close or flush a stream

 Syntax


    cc  . . .  -lc


    #include  <stdio.h>

    int fclose (stream)
    FILE *stream;

    int fflush (stream)
    FILE *stream;


 Description

    The fclose function causes any buffered data for the named stream to be
    written out, and the stream to be closed.

    The fclose function is performed automatically for all open files upon
    calling exit.

    fflush causes any buffered data for the named stream to be written to
    that file.  The stream remains open.

 Diagnostics

    These functions return 0 for success and EOF if any error (such as trying
    to write to a file that has not been opened for writing) was detected.

 See also

    close(S), exit(S), fopen(S), setbuf(S), stdio(S)

 Standards conformance

    fclose and fflush are conformant with:
    AT&T SVID Issue 2;
    X/Open Portability Guide, Issue 3, 1989;
    ANSI X3.159-1989 Programming Language -- C;
    Intel386 Binary Compatibility Specification, Edition 2 (iBCSe2);
    IEEE POSIX Std 1003.1-1990 System Application Program Interface (API) [C
    Language] (ISO/IEC 9945-1);
    and NIST FIPS 151-1.