newlib-cygwin/newlib/libc/stdio/feof.c

66 lines
1.6 KiB
C

/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/*
FUNCTION
<<feof>>---test for end of file
INDEX
feof
ANSI_SYNOPSIS
#include <stdio.h>
int feof(FILE *<[fp]>);
TRAD_SYNOPSIS
#include <stdio.h>
int feof(<[fp]>)
FILE *<[fp]>;
DESCRIPTION
<<feof>> tests whether or not the end of the file identified by <[fp]>
has been reached.
RETURNS
<<feof>> returns <<0>> if the end of file has not yet been reached; if
at end of file, the result is nonzero.
PORTABILITY
<<feof>> is required by ANSI C.
No supporting OS subroutines are required.
*/
#include <stdio.h>
#include "local.h"
/* A subroutine version of the macro feof. */
#undef feof
int
_DEFUN(feof, (fp),
FILE * fp)
{
int result;
CHECK_INIT(_REENT);
_flockfile (fp);
result = __sfeof (fp);
_funlockfile (fp);
return result;
}