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231 lines
7.9 KiB
C
231 lines
7.9 KiB
C
/* Test iscanonical and canonicalizel for ldbl-128ibm.
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Copyright (C) 2016-2020 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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<https://www.gnu.org/licenses/>. */
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#include <float.h>
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#include <math.h>
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#include <math_ldbl.h>
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#include <stdbool.h>
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#include <stdio.h>
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struct test
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{
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double hi, lo;
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bool canonical;
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};
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static const struct test tests[] =
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{
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{ __builtin_nan (""), 0.0, true },
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{ __builtin_nan (""), DBL_MAX, true },
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{ __builtin_nan (""), __builtin_inf (), true },
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{ __builtin_nan (""), __builtin_nan (""), true },
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{ __builtin_nan (""), __builtin_nans (""), true },
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{ __builtin_nans (""), 0.0, true },
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{ __builtin_nans (""), DBL_MAX, true },
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{ __builtin_nans (""), __builtin_inf (), true },
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{ __builtin_nans (""), __builtin_nan (""), true },
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{ __builtin_nans (""), __builtin_nans (""), true },
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{ __builtin_inf (), 0.0, true },
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{ __builtin_inf (), -0.0, true },
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{ -__builtin_inf (), 0.0, true },
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{ -__builtin_inf (), -0.0, true },
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{ __builtin_inf (), DBL_TRUE_MIN, false },
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{ __builtin_inf (), -DBL_TRUE_MIN, false },
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{ -__builtin_inf (), DBL_TRUE_MIN, false },
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{ -__builtin_inf (), -DBL_TRUE_MIN, false },
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{ __builtin_inf (), DBL_MIN, false },
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{ __builtin_inf (), -DBL_MIN, false },
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{ -__builtin_inf (), DBL_MIN, false },
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{ -__builtin_inf (), -DBL_MIN, false },
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{ __builtin_inf (), __builtin_inf (), false },
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{ __builtin_inf (), -__builtin_inf (), false },
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{ -__builtin_inf (), __builtin_inf (), false },
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{ -__builtin_inf (), -__builtin_inf (), false },
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{ __builtin_inf (), __builtin_nan (""), false },
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{ __builtin_inf (), -__builtin_nan (""), false },
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{ -__builtin_inf (), __builtin_nan (""), false },
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{ -__builtin_inf (), -__builtin_nan (""), false },
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{ 0.0, 0.0, true },
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{ 0.0, -0.0, true },
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{ -0.0, 0.0, true },
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{ -0.0, -0.0, true },
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{ 0.0, DBL_TRUE_MIN, false },
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{ 0.0, -DBL_TRUE_MIN, false },
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{ -0.0, DBL_TRUE_MIN, false },
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{ -0.0, -DBL_TRUE_MIN, false },
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{ 0.0, DBL_MAX, false },
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{ 0.0, -DBL_MAX, false },
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{ -0.0, DBL_MAX, false },
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{ -0.0, -DBL_MAX, false },
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{ 0.0, __builtin_inf (), false },
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{ 0.0, -__builtin_inf (), false },
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{ -0.0, __builtin_inf (), false },
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{ -0.0, -__builtin_inf (), false },
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{ 0.0, __builtin_nan (""), false },
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{ 0.0, -__builtin_nan (""), false },
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{ -0.0, __builtin_nan (""), false },
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{ -0.0, -__builtin_nan (""), false },
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{ 1.0, 0.0, true },
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{ 1.0, -0.0, true },
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{ -1.0, 0.0, true },
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{ -1.0, -0.0, true },
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{ 1.0, DBL_TRUE_MIN, true },
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{ 1.0, -DBL_TRUE_MIN, true },
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{ -1.0, DBL_TRUE_MIN, true },
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{ -1.0, -DBL_TRUE_MIN, true },
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{ 1.0, DBL_MAX, false },
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{ 1.0, -DBL_MAX, false },
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{ -1.0, DBL_MAX, false },
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{ -1.0, -DBL_MAX, false },
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{ 1.0, __builtin_inf (), false },
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{ 1.0, -__builtin_inf (), false },
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{ -1.0, __builtin_inf (), false },
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{ -1.0, -__builtin_inf (), false },
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{ 1.0, __builtin_nan (""), false },
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{ 1.0, -__builtin_nan (""), false },
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{ -1.0, __builtin_nan (""), false },
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{ -1.0, -__builtin_nan (""), false },
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{ 0x1p1023, 0x1.1p969, true },
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{ 0x1p1023, -0x1.1p969, true },
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{ -0x1p1023, 0x1.1p969, true },
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{ -0x1p1023, -0x1.1p969, true },
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{ 0x1p1023, 0x1.1p970, false },
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{ 0x1p1023, -0x1.1p970, false },
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{ -0x1p1023, 0x1.1p970, false },
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{ -0x1p1023, -0x1.1p970, false },
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{ 0x1p1023, 0x1p970, true },
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{ 0x1p1023, -0x1p970, true },
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{ -0x1p1023, 0x1p970, true },
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{ -0x1p1023, -0x1p970, true },
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{ 0x1.0000000000001p1023, 0x1p970, false },
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{ 0x1.0000000000001p1023, -0x1p970, false },
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{ -0x1.0000000000001p1023, 0x1p970, false },
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{ -0x1.0000000000001p1023, -0x1p970, false },
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{ 0x1p-969, 0x1.1p-1023, true },
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{ 0x1p-969, -0x1.1p-1023, true },
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{ -0x1p-969, 0x1.1p-1023, true },
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{ -0x1p-969, -0x1.1p-1023, true },
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{ 0x1p-969, 0x1.1p-1022, false },
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{ 0x1p-969, -0x1.1p-1022, false },
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{ -0x1p-969, 0x1.1p-1022, false },
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{ -0x1p-969, -0x1.1p-1022, false },
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{ 0x1p-969, 0x1p-1022, true },
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{ 0x1p-969, -0x1p-1022, true },
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{ -0x1p-969, 0x1p-1022, true },
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{ -0x1p-969, -0x1p-1022, true },
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{ 0x1.0000000000001p-969, 0x1p-1022, false },
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{ 0x1.0000000000001p-969, -0x1p-1022, false },
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{ -0x1.0000000000001p-969, 0x1p-1022, false },
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{ -0x1.0000000000001p-969, -0x1p-1022, false },
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{ 0x1p-970, 0x1.1p-1024, true },
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{ 0x1p-970, -0x1.1p-1024, true },
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{ -0x1p-970, 0x1.1p-1024, true },
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{ -0x1p-970, -0x1.1p-1024, true },
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{ 0x1p-970, 0x1.1p-1023, false },
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{ 0x1p-970, -0x1.1p-1023, false },
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{ -0x1p-970, 0x1.1p-1023, false },
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{ -0x1p-970, -0x1.1p-1023, false },
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{ 0x1p-970, 0x1p-1023, true },
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{ 0x1p-970, -0x1p-1023, true },
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{ -0x1p-970, 0x1p-1023, true },
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{ -0x1p-970, -0x1p-1023, true },
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{ 0x1.0000000000001p-970, 0x1p-1023, false },
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{ 0x1.0000000000001p-970, -0x1p-1023, false },
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{ -0x1.0000000000001p-970, 0x1p-1023, false },
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{ -0x1.0000000000001p-970, -0x1p-1023, false },
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{ 0x1p-1000, 0x1.1p-1054, true },
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{ 0x1p-1000, -0x1.1p-1054, true },
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{ -0x1p-1000, 0x1.1p-1054, true },
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{ -0x1p-1000, -0x1.1p-1054, true },
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{ 0x1p-1000, 0x1.1p-1053, false },
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{ 0x1p-1000, -0x1.1p-1053, false },
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{ -0x1p-1000, 0x1.1p-1053, false },
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{ -0x1p-1000, -0x1.1p-1053, false },
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{ 0x1p-1000, 0x1p-1053, true },
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{ 0x1p-1000, -0x1p-1053, true },
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{ -0x1p-1000, 0x1p-1053, true },
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{ -0x1p-1000, -0x1p-1053, true },
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{ 0x1.0000000000001p-1000, 0x1p-1053, false },
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{ 0x1.0000000000001p-1000, -0x1p-1053, false },
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{ -0x1.0000000000001p-1000, 0x1p-1053, false },
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{ -0x1.0000000000001p-1000, -0x1p-1053, false },
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{ 0x1p-1021, 0x1p-1074, true },
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{ 0x1p-1021, -0x1p-1074, true },
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{ -0x1p-1021, 0x1p-1074, true },
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{ -0x1p-1021, -0x1p-1074, true },
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{ 0x1.0000000000001p-1021, 0x1p-1074, false },
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{ 0x1.0000000000001p-1021, -0x1p-1074, false },
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{ -0x1.0000000000001p-1021, 0x1p-1074, false },
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{ -0x1.0000000000001p-1021, -0x1p-1074, false },
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{ 0x1p-1022, 0x1p-1074, false },
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{ 0x1p-1022, -0x1p-1074, false },
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{ -0x1p-1022, 0x1p-1074, false },
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{ -0x1p-1022, -0x1p-1074, false },
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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 = ldbl_pack (tests[i].hi, tests[i].lo);
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bool canonical = iscanonical (ld);
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if (canonical == tests[i].canonical)
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{
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printf ("PASS: iscanonical test %zu\n", i);
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long double ldc = 12345.0L;
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bool canonicalize_ret = canonicalizel (&ldc, &ld);
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if (canonicalize_ret == !canonical)
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{
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printf ("PASS: canonicalizel test %zu\n", i);
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bool canon_ok;
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if (!canonical)
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canon_ok = ldc == 12345.0L;
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else if (isnan (ld))
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canon_ok = isnan (ldc) && !issignaling (ldc);
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else
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canon_ok = ldc == ld;
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if (canon_ok)
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printf ("PASS: canonicalized value test %zu\n", i);
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else
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{
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printf ("FAIL: canonicalized value test %zu\n", i);
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result = 1;
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}
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}
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else
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{
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printf ("FAIL: canonicalizel test %zu\n", i);
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result = 1;
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}
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}
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else
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{
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printf ("FAIL: iscanonical 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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