OpenXM_contrib/gmp/errno.c - diff

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Diff for /OpenXM_contrib/gmp/Attic/errno.c between version 1.1 and 1.1.1.2

-version 1.1, 2000/09/09 14:12:15
+version 1.1.1.2, 2003/08/25 16:06:00
 Line 1
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- /* gmp_errno -- The largest and most complex file in GMP.
+ /* gmp_errno, __gmp_exception -- exception handling and reporting.
- Copyright (C) 2000 Free Software Foundation, Inc.
+ Copyright 2000, 2001 Free Software Foundation, Inc.
  This file is part of the GNU MP Library.
 Line 19  along with the GNU MP Library; see the file COPYING.LI
 Line 19  along with the GNU MP Library; see the file COPYING.LI
 Line 19  along with the GNU MP Library; see the file COPYING.LI
  the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  MA 02111-1307, USA. */
+ #include <stdlib.h>
  #include "gmp.h"
  #include "gmp-impl.h"
  int gmp_errno = 0;
+ /* The deliberate divide by zero triggers an exception on most systems.  On
+    those where it doesn't, for example power and powerpc, use abort instead.
+    Enhancement: Perhaps raise(SIGFPE) (or the same with kill()) would be
+    better than abort.  Perhaps it'd be possible to get the BSD style
+    FPE_INTDIV_TRAP parameter in there too.  */
+ void
+ __gmp_exception (int error_bit)
+ {
+   gmp_errno |= error_bit;
+   __gmp_junk = 10 / __gmp_0;
+   abort ();
+ }
+ /* These functions minimize the amount of code required in functions raising
+    exceptions.  Since they're "noreturn" and don't take any parameters, a
+    test and call might even come out as a simple conditional jump.  */
+ void
+ __gmp_sqrt_of_negative (void)
+ {
+   __gmp_exception (GMP_ERROR_SQRT_OF_NEGATIVE);
+ }
+ void
+ __gmp_divide_by_zero (void)
+ {
+   __gmp_exception (GMP_ERROR_DIVISION_BY_ZERO);
+ }

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