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  1. /*
  2.  * Copyright (c) 1990 The Regents of the University of California.
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms are permitted
  6.  * provided that the above copyright notice and this paragraph are
  7.  * duplicated in all such forms and that any documentation,
  8.  * advertising materials, and other materials related to such
  9.  * distribution and use acknowledge that the software was developed
  10.  * by the University of California, Berkeley.  The name of the
  11.  * University may not be used to endorse or promote products derived
  12.  * from this software without specific prior written permission.
  13.  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
  14.  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
  15.  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  16.  */
  17.  
  18. /*
  19. FUNCTION
  20. <<feof>>---test for end of file
  21.  
  22. INDEX
  23.         feof
  24.  
  25. ANSI_SYNOPSIS
  26.         #include <stdio.h>
  27.         int feof(FILE *<[fp]>);
  28.  
  29. TRAD_SYNOPSIS
  30.         #include <stdio.h>
  31.         int feof(<[fp]>)
  32.         FILE *<[fp]>;
  33.  
  34. DESCRIPTION
  35. <<feof>> tests whether or not the end of the file identified by <[fp]>
  36. has been reached.
  37.  
  38. RETURNS
  39. <<feof>> returns <<0>> if the end of file has not yet been reached; if
  40. at end of file, the result is nonzero.
  41.  
  42. PORTABILITY
  43. <<feof>> is required by ANSI C.
  44.  
  45. No supporting OS subroutines are required.
  46. */
  47.  
  48. #include <stdio.h>
  49. #include "local.h"
  50.  
  51. /* A subroutine version of the macro feof.  */
  52.  
  53. #undef feof
  54.  
  55. int
  56. _DEFUN(feof, (fp),
  57.        FILE * fp)
  58. {
  59.   int result;
  60.   CHECK_INIT(_REENT, fp);
  61.   _newlib_flockfile_start (fp);
  62.   result = __sfeof (fp);
  63.   _newlib_flockfile_end (fp);
  64.   return result;
  65. }
  66.