compiler/clib/sigdelset.c

   1 /*
   2     Copyright © 1995-2002, The AROS Development Team. All rights reserved.
   3     $Id$
   4
   5     ANSI C function sigdelset().
   6 */
   7
   8 /*****************************************************************************
   9
  10     NAME */
  11
  12 #include "__arosc_privdata.h"
  13
  14 #include <signal.h>
  15
  16         int sigdelset (
  17
  18 /*  SYNOPSIS */
  19         sigset_t *set,
  20         int signum)
  21
  22 /*  FUNCTION
  23
  24     INPUTS
  25
  26     RESULT
  27
  28     NOTES
  29
  30     EXAMPLE
  31
  32     BUGS
  33
  34     SEE ALSO
  35
  36     INTERNALS
  37
  38 ******************************************************************************/
  39 {
  40         if (NULL != set) {
  41                 ULONG i = (signum >> 5);
  42                 set->__val[i] &= ~(1 << (signum & 0x1f));
  43                 return 0;
  44         }
  45
  46         return -1;
  47 } /* sigdelset */