toolchain/gcc/newlib/libc/stdio/feof.c

   1 /*
   2 FUNCTION
   3 <<feof>>---test for end of file
   4
   5 INDEX
   6         feof
   7
   8 ANSI_SYNOPSIS
   9         #include <stdio.h>
  10         int feof(FILE *<[fp]>);
  11
  12 TRAD_SYNOPSIS
  13         #include <stdio.h>
  14         int feof(<[fp]>)
  15         FILE *<[fp]>;
  16
  17 DESCRIPTION
  18 <<feof>> tests whether or not the end of the file identified by <[fp]>
  19 has been reached.
  20
  21 RETURNS
  22 <<feof>> returns <<0>> if the end of file has not yet been reached; if
  23 at end of file, the result is nonzero.
  24
  25 PORTABILITY
  26 <<feof>> is required by ANSI C.
  27
  28 No supporting OS subroutines are required.
  29 */
  30
  31 #include <stdio.h>
  32
  33 #undef feof
  34
  35 int
  36 _DEFUN (feof, (fp),
  37         FILE * fp)
  38 {
  39   int result;
  40   _flockfile(fp);
  41   result = __sfeof (fp);
  42   _funlockfile(fp);
  43   return result;
  44 }