X-Git-Url: https://oss.titaniummirror.com/gitweb/?a=blobdiff_plain;f=gmp%2Ftests%2Fmpz%2Ft-gcd_ui.c;fp=gmp%2Ftests%2Fmpz%2Ft-gcd_ui.c;h=ac6431ceb26c79adc5bae3bc64d44c50a4e1ea8d;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=0000000000000000000000000000000000000000;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/gmp/tests/mpz/t-gcd_ui.c b/gmp/tests/mpz/t-gcd_ui.c new file mode 100644 index 00000000..ac6431ce --- /dev/null +++ b/gmp/tests/mpz/t-gcd_ui.c @@ -0,0 +1,63 @@ +/* Test mpz_gcd_ui. + +Copyright 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 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. + +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 Lesser General Public +License for more details. + +You should have received a copy of the GNU Lesser General Public License +along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */ + +#include +#include + +#include "gmp.h" +#include "gmp-impl.h" +#include "tests.h" + +/* Check mpz_gcd_ui doesn't try to return a value out of range. + This was wrong in gmp 4.1.2 with a long long limb. */ +static void +check_ui_range (void) +{ + unsigned long got; + mpz_t x; + int i; + + mpz_init_set_ui (x, ULONG_MAX); + + for (i = 0; i < 20; i++) + { + mpz_mul_2exp (x, x, 1L); + got = mpz_gcd_ui (NULL, x, 0L); + if (got != 0) + { + printf ("mpz_gcd_ui (ULONG_MAX*2^%d, 0)\n", i); + printf (" return %#lx\n", got); + printf (" should be 0\n"); + abort (); + } + } + + mpz_clear (x); +} + +int +main (void) +{ + tests_start (); + + check_ui_range (); + + tests_end (); + exit (0); +}