From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/errno.c | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 gmp-6.3.0/errno.c (limited to 'gmp-6.3.0/errno.c') diff --git a/gmp-6.3.0/errno.c b/gmp-6.3.0/errno.c new file mode 100644 index 0000000..d71c146 --- /dev/null +++ b/gmp-6.3.0/errno.c @@ -0,0 +1,77 @@ +/* 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, 2021 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 + +#include + +#include "gmp-impl.h" + +int gmp_errno = 0; + + +/* Use SIGFPE on systems which have it. Otherwise, deliberate divide + by zero, which triggers an exception on most systems. On those + where it doesn't, for example power and powerpc, use abort instead. */ +void +__gmp_exception (int error_bit) +{ + gmp_errno |= error_bit; +#ifdef SIGFPE + raise (SIGFPE); +#else + __gmp_junk = 10 / __gmp_0; +#endif + 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); +} +void +__gmp_overflow_in_mpz (void) +{ + __gmp_exception (GMP_ERROR_MPZ_OVERFLOW); +} -- cgit v1.2.3