diff options
Diffstat (limited to 'gmp-6.3.0/tests/mpf/t-cmp_si.c')
| -rw-r--r-- | gmp-6.3.0/tests/mpf/t-cmp_si.c | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/gmp-6.3.0/tests/mpf/t-cmp_si.c b/gmp-6.3.0/tests/mpf/t-cmp_si.c new file mode 100644 index 0000000..29f7cdb --- /dev/null +++ b/gmp-6.3.0/tests/mpf/t-cmp_si.c @@ -0,0 +1,134 @@ +/* Test mpf_cmp_si and mpf_cmp_z. + +Copyright 2000, 2001, 2004, 2015 Free Software Foundation, Inc. + +This file is part of the GNU MP Library test suite. + +The GNU MP Library test suite is free software; you can redistribute it +and/or modify it under the terms of the GNU 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 test suite 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 a copy of the GNU General Public License along with +the GNU MP Library test suite. If not, see https://www.gnu.org/licenses/. */ + +#include <stdio.h> +#include <stdlib.h> +#include "gmp-impl.h" +#include "tests.h" + +#define SGN(x) ((x) < 0 ? -1 : (x) == 0 ? 0 : 1) + +void +check_data (void) +{ + static const struct { + int a_base; + const char *a; + const char *b; + int want; + } data[] = { + { 10, "0", "1", -1 }, + { 10, "0", "0", 0 }, + { 10, "0", "-1", 1 }, + + { 10, "1", "1", 0 }, + { 10, "1", "0", 1 }, + { 10, "1", "-1", 1 }, + + { 10, "-1", "1", -1 }, + { 10, "-1", "0", -1 }, + { 10, "-1", "-1", 0 }, + + { 10, "1.5", "2", -1 }, + { 10, "1.5", "1", 1 }, + { 10, "0.5", "1", -1 }, + + { 10, "-1.5", "-2", 1 }, + { 10, "-1.5", "-1", -1 }, + { 10, "-0.5", "-1", 1 }, + + { 16, "0", "-0x80000000", 1 }, + { 16, "80000000", "-0x80000000", 1 }, + { 16, "80000001", "-0x80000000", 1 }, + { 16, "-80000000", "-0x80000000", 0 }, + { 16, "-80000001", "-0x80000000", -1 }, + { 16, "-FF0080000001", "-0x80000000", -1 }, + + { 16, "0", "-0x8000000000000000", 1 }, + { 16, "8000000000000000", "-0x8000000000000000", 1 }, + { 16, "8000000000000001", "-0x8000000000000000", 1 }, + { 16, "-8000000000000000", "-0x8000000000000000", 0 }, + { 16, "-8000000000000000.1", "-0x8000000000000000", -1 }, + { 16, "-FF008000000000000001", "-0x8000000000000000", -1 }, + + { 16, "0", "-0x876543210FEDCBA9876543210000000", 1 }, + { 16, "876543210FEDCBA9876543210000000", "-0x876543210FEDCBA9876543210000000", 1 }, + { 16, "876543210FEDCBA9876543210000001", "-0x876543210FEDCBA9876543210000000", 1 }, + { 16, "-876543210FEDCBA9876543210000000", "-0x876543210FEDCBA9876543210000000", 0 }, + { 16, "-876543210FEDCBA9876543210000000.1", "-0x876543210FEDCBA9876543210000000", -1 }, + { 16, "-FF00876543210FEDCBA9876543210000000", "-0x876543210FEDCBA9876543210000000", -1 }, + }; + + mpf_t a; + mpz_t bz; + long b; + int got; + int i; + + mpf_init2 (a, 128); + mpz_init (bz); + for (i = 0; i < numberof (data); i++) + { + mpf_set_str_or_abort (a, data[i].a, data[i].a_base); + mpz_set_str_or_abort (bz, data[i].b, 0); + + if (mpz_fits_slong_p (bz)) + { + b = mpz_get_si (bz); + got = mpf_cmp_si (a, b); + if (SGN (got) != data[i].want) + { + printf ("mpf_cmp_si wrong on data[%d]\n", i); + printf (" a="); mpf_out_str (stdout, 10, 0, a); + printf (" (%s)\n", data[i].a); + printf (" b=%ld (%s)\n", b, data[i].b); + printf (" got=%d\n", got); + printf (" want=%d\n", data[i].want); + abort(); + } + } + + got = mpf_cmp_z (a, bz); + if (SGN (got) != data[i].want) + { + b = mpz_get_si (bz); + printf ("mpf_cmp_z wrong on data[%d]\n", i); + printf (" a="); mpf_out_str (stdout, 10, 0, a); + printf (" (%s)\n", data[i].a); + printf (" b=%ld (%s)\n", b, data[i].b); + printf (" got=%d\n", got); + printf (" want=%d\n", data[i].want); + abort(); + } + } + + mpf_clear (a); + mpz_clear (bz); +} + +int +main (void) +{ + tests_start (); + + check_data (); + + tests_end (); + exit (0); +} |