NAME
    fflush - flush output to file

SYNOPSIS
    fflush(fd)

TYPES
    fd		file

    return	nil

DESCRIPTION
    This function forces a buffered output to the file associated with fd.

EXAMPLE
    > fd = fopen("/tmp/file", "w")
    > fputc(fd, "@");
    > fflush(fd)

LIMITS
    fd must be associated with an open file

LIBRARY
    none

SEE ALSO
    errno, fclose, feof, ferror, fflush, fgetc, fgetline, fgets, files, fopen,
    fprintf, fputc, fputs, fseek, fsize, ftell, isfile, printf, prompt