diff options
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/errno.c')
-rw-r--r-- | Build/source/libs/gmp/gmp-6.0.0/errno.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/Build/source/libs/gmp/gmp-6.0.0/errno.c b/Build/source/libs/gmp/gmp-6.0.0/errno.c new file mode 100644 index 00000000000..d3c02ef4b82 --- /dev/null +++ b/Build/source/libs/gmp/gmp-6.0.0/errno.c @@ -0,0 +1,70 @@ +/* gmp_errno, __gmp_exception -- exception handling and reporting. + + THE FUNCTIONS IN THIS FILE, APART FROM gmp_errno, ARE FOR INTERNAL USE + ONLY. THEY'RE ALMOST CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR + DISAPPEAR COMPLETELY IN FUTURE GNU MP RELEASES. + +Copyright 2000, 2001, 2003 Free Software Foundation, Inc. + +This file is part of the GNU MP Library. + +The GNU MP Library is free software; you can redistribute it and/or modify +it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + +or + + * the GNU General Public License as published by the Free Software + Foundation; either version 2 of the License, or (at your option) any + later version. + +or both in parallel, as here. + +The GNU MP Library is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received copies of the GNU General Public License and the +GNU Lesser General Public License along with the GNU MP Library. If not, +see https://www.gnu.org/licenses/. */ + +#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); +} |