115 lines
3.7 KiB
C
115 lines
3.7 KiB
C
/* Test iscanonical for ldbl-96.
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Copyright (C) 2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <float.h>
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#include <math.h>
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#include <math_private.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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struct test
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{
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bool sign;
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uint16_t exponent;
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bool high;
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uint64_t mantissa;
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bool canonical;
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};
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#define M68K_VARIANT (LDBL_MIN_EXP == -16382)
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static const struct test tests[] =
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{
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{ false, 0, true, 0, M68K_VARIANT },
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{ true, 0, true, 0, M68K_VARIANT },
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{ false, 0, true, 1, M68K_VARIANT },
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{ true, 0, true, 1, M68K_VARIANT },
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{ false, 0, true, 0x100000000ULL, M68K_VARIANT },
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{ true, 0, true, 0x100000000ULL, M68K_VARIANT },
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{ false, 0, false, 0, true },
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{ true, 0, false, 0, true },
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{ false, 0, false, 1, true },
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{ true, 0, false, 1, true },
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{ false, 0, false, 0x100000000ULL, true },
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{ true, 0, false, 0x100000000ULL, true },
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{ false, 1, true, 0, true },
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{ true, 1, true, 0, true },
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{ false, 1, true, 1, true },
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{ true, 1, true, 1, true },
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{ false, 1, true, 0x100000000ULL, true },
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{ true, 1, true, 0x100000000ULL, true },
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{ false, 1, false, 0, false },
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{ true, 1, false, 0, false },
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{ false, 1, false, 1, false },
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{ true, 1, false, 1, false },
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{ false, 1, false, 0x100000000ULL, false },
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{ true, 1, false, 0x100000000ULL, false },
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{ false, 0x7ffe, true, 0, true },
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{ true, 0x7ffe, true, 0, true },
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{ false, 0x7ffe, true, 1, true },
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{ true, 0x7ffe, true, 1, true },
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{ false, 0x7ffe, true, 0x100000000ULL, true },
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{ true, 0x7ffe, true, 0x100000000ULL, true },
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{ false, 0x7ffe, false, 0, false },
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{ true, 0x7ffe, false, 0, false },
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{ false, 0x7ffe, false, 1, false },
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{ true, 0x7ffe, false, 1, false },
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{ false, 0x7ffe, false, 0x100000000ULL, false },
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{ true, 0x7ffe, false, 0x100000000ULL, false },
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{ false, 0x7fff, true, 0, true },
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{ true, 0x7fff, true, 0, true },
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{ false, 0x7fff, true, 1, true },
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{ true, 0x7fff, true, 1, true },
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{ false, 0x7fff, true, 0x100000000ULL, true },
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{ true, 0x7fff, true, 0x100000000ULL, true },
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{ false, 0x7fff, false, 0, M68K_VARIANT },
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{ true, 0x7fff, false, 0, M68K_VARIANT },
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{ false, 0x7fff, false, 1, M68K_VARIANT },
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{ true, 0x7fff, false, 1, M68K_VARIANT },
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{ false, 0x7fff, false, 0x100000000ULL, M68K_VARIANT },
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{ true, 0x7fff, false, 0x100000000ULL, M68K_VARIANT },
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};
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static int
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do_test (void)
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{
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int result = 0;
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for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); i++)
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{
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long double ld;
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SET_LDOUBLE_WORDS (ld, tests[i].exponent | (tests[i].sign << 15),
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(tests[i].mantissa >> 32) | (tests[i].high << 31),
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tests[i].mantissa & 0xffffffffULL);
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bool canonical = iscanonical (ld);
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if (canonical == tests[i].canonical)
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printf ("PASS: test %zu\n", i);
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else
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{
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printf ("FAIL: test %zu\n", i);
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result = 1;
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}
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}
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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