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/* Test iscanonical and canonicalizel for ldbl-128ibm.
Copyright (C) 2016-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C 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 2.1 of the License, or (at your option) any later version.
The GNU C 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 C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <float.h>
#include <math.h>
#include <math_ldbl.h>
#include <stdbool.h>
#include <stdio.h>
struct test
{
double hi, lo;
bool canonical;
};
static const struct test tests[] =
{
{ __builtin_nan (""), 0.0, true },
{ __builtin_nan (""), DBL_MAX, true },
{ __builtin_nan (""), __builtin_inf (), true },
{ __builtin_nan (""), __builtin_nan (""), true },
{ __builtin_nan (""), __builtin_nans (""), true },
{ __builtin_nans (""), 0.0, true },
{ __builtin_nans (""), DBL_MAX, true },
{ __builtin_nans (""), __builtin_inf (), true },
{ __builtin_nans (""), __builtin_nan (""), true },
{ __builtin_nans (""), __builtin_nans (""), true },
{ __builtin_inf (), 0.0, true },
{ __builtin_inf (), -0.0, true },
{ -__builtin_inf (), 0.0, true },
{ -__builtin_inf (), -0.0, true },
{ __builtin_inf (), DBL_TRUE_MIN, false },
{ __builtin_inf (), -DBL_TRUE_MIN, false },
{ -__builtin_inf (), DBL_TRUE_MIN, false },
{ -__builtin_inf (), -DBL_TRUE_MIN, false },
{ __builtin_inf (), DBL_MIN, false },
{ __builtin_inf (), -DBL_MIN, false },
{ -__builtin_inf (), DBL_MIN, false },
{ -__builtin_inf (), -DBL_MIN, false },
{ __builtin_inf (), __builtin_inf (), false },
{ __builtin_inf (), -__builtin_inf (), false },
{ -__builtin_inf (), __builtin_inf (), false },
{ -__builtin_inf (), -__builtin_inf (), false },
{ __builtin_inf (), __builtin_nan (""), false },
{ __builtin_inf (), -__builtin_nan (""), false },
{ -__builtin_inf (), __builtin_nan (""), false },
{ -__builtin_inf (), -__builtin_nan (""), false },
{ 0.0, 0.0, true },
{ 0.0, -0.0, true },
{ -0.0, 0.0, true },
{ -0.0, -0.0, true },
{ 0.0, DBL_TRUE_MIN, false },
{ 0.0, -DBL_TRUE_MIN, false },
{ -0.0, DBL_TRUE_MIN, false },
{ -0.0, -DBL_TRUE_MIN, false },
{ 0.0, DBL_MAX, false },
{ 0.0, -DBL_MAX, false },
{ -0.0, DBL_MAX, false },
{ -0.0, -DBL_MAX, false },
{ 0.0, __builtin_inf (), false },
{ 0.0, -__builtin_inf (), false },
{ -0.0, __builtin_inf (), false },
{ -0.0, -__builtin_inf (), false },
{ 0.0, __builtin_nan (""), false },
{ 0.0, -__builtin_nan (""), false },
{ -0.0, __builtin_nan (""), false },
{ -0.0, -__builtin_nan (""), false },
{ 1.0, 0.0, true },
{ 1.0, -0.0, true },
{ -1.0, 0.0, true },
{ -1.0, -0.0, true },
{ 1.0, DBL_TRUE_MIN, true },
{ 1.0, -DBL_TRUE_MIN, true },
{ -1.0, DBL_TRUE_MIN, true },
{ -1.0, -DBL_TRUE_MIN, true },
{ 1.0, DBL_MAX, false },
{ 1.0, -DBL_MAX, false },
{ -1.0, DBL_MAX, false },
{ -1.0, -DBL_MAX, false },
{ 1.0, __builtin_inf (), false },
{ 1.0, -__builtin_inf (), false },
{ -1.0, __builtin_inf (), false },
{ -1.0, -__builtin_inf (), false },
{ 1.0, __builtin_nan (""), false },
{ 1.0, -__builtin_nan (""), false },
{ -1.0, __builtin_nan (""), false },
{ -1.0, -__builtin_nan (""), false },
{ 0x1p1023, 0x1.1p969, true },
{ 0x1p1023, -0x1.1p969, true },
{ -0x1p1023, 0x1.1p969, true },
{ -0x1p1023, -0x1.1p969, true },
{ 0x1p1023, 0x1.1p970, false },
{ 0x1p1023, -0x1.1p970, false },
{ -0x1p1023, 0x1.1p970, false },
{ -0x1p1023, -0x1.1p970, false },
{ 0x1p1023, 0x1p970, true },
{ 0x1p1023, -0x1p970, true },
{ -0x1p1023, 0x1p970, true },
{ -0x1p1023, -0x1p970, true },
{ 0x1.0000000000001p1023, 0x1p970, false },
{ 0x1.0000000000001p1023, -0x1p970, false },
{ -0x1.0000000000001p1023, 0x1p970, false },
{ -0x1.0000000000001p1023, -0x1p970, false },
{ 0x1p-969, 0x1.1p-1023, true },
{ 0x1p-969, -0x1.1p-1023, true },
{ -0x1p-969, 0x1.1p-1023, true },
{ -0x1p-969, -0x1.1p-1023, true },
{ 0x1p-969, 0x1.1p-1022, false },
{ 0x1p-969, -0x1.1p-1022, false },
{ -0x1p-969, 0x1.1p-1022, false },
{ -0x1p-969, -0x1.1p-1022, false },
{ 0x1p-969, 0x1p-1022, true },
{ 0x1p-969, -0x1p-1022, true },
{ -0x1p-969, 0x1p-1022, true },
{ -0x1p-969, -0x1p-1022, true },
{ 0x1.0000000000001p-969, 0x1p-1022, false },
{ 0x1.0000000000001p-969, -0x1p-1022, false },
{ -0x1.0000000000001p-969, 0x1p-1022, false },
{ -0x1.0000000000001p-969, -0x1p-1022, false },
{ 0x1p-970, 0x1.1p-1024, true },
{ 0x1p-970, -0x1.1p-1024, true },
{ -0x1p-970, 0x1.1p-1024, true },
{ -0x1p-970, -0x1.1p-1024, true },
{ 0x1p-970, 0x1.1p-1023, false },
{ 0x1p-970, -0x1.1p-1023, false },
{ -0x1p-970, 0x1.1p-1023, false },
{ -0x1p-970, -0x1.1p-1023, false },
{ 0x1p-970, 0x1p-1023, true },
{ 0x1p-970, -0x1p-1023, true },
{ -0x1p-970, 0x1p-1023, true },
{ -0x1p-970, -0x1p-1023, true },
{ 0x1.0000000000001p-970, 0x1p-1023, false },
{ 0x1.0000000000001p-970, -0x1p-1023, false },
{ -0x1.0000000000001p-970, 0x1p-1023, false },
{ -0x1.0000000000001p-970, -0x1p-1023, false },
{ 0x1p-1000, 0x1.1p-1054, true },
{ 0x1p-1000, -0x1.1p-1054, true },
{ -0x1p-1000, 0x1.1p-1054, true },
{ -0x1p-1000, -0x1.1p-1054, true },
{ 0x1p-1000, 0x1.1p-1053, false },
{ 0x1p-1000, -0x1.1p-1053, false },
{ -0x1p-1000, 0x1.1p-1053, false },
{ -0x1p-1000, -0x1.1p-1053, false },
{ 0x1p-1000, 0x1p-1053, true },
{ 0x1p-1000, -0x1p-1053, true },
{ -0x1p-1000, 0x1p-1053, true },
{ -0x1p-1000, -0x1p-1053, true },
{ 0x1.0000000000001p-1000, 0x1p-1053, false },
{ 0x1.0000000000001p-1000, -0x1p-1053, false },
{ -0x1.0000000000001p-1000, 0x1p-1053, false },
{ -0x1.0000000000001p-1000, -0x1p-1053, false },
{ 0x1p-1021, 0x1p-1074, true },
{ 0x1p-1021, -0x1p-1074, true },
{ -0x1p-1021, 0x1p-1074, true },
{ -0x1p-1021, -0x1p-1074, true },
{ 0x1.0000000000001p-1021, 0x1p-1074, false },
{ 0x1.0000000000001p-1021, -0x1p-1074, false },
{ -0x1.0000000000001p-1021, 0x1p-1074, false },
{ -0x1.0000000000001p-1021, -0x1p-1074, false },
{ 0x1p-1022, 0x1p-1074, false },
{ 0x1p-1022, -0x1p-1074, false },
{ -0x1p-1022, 0x1p-1074, false },
{ -0x1p-1022, -0x1p-1074, false },
};
static int
do_test (void)
{
int result = 0;
for (size_t i = 0; i < sizeof (tests) / sizeof (tests[0]); i++)
{
long double ld = ldbl_pack (tests[i].hi, tests[i].lo);
bool canonical = iscanonical (ld);
if (canonical == tests[i].canonical)
{
printf ("PASS: iscanonical test %zu\n", i);
long double ldc = 12345.0L;
bool canonicalize_ret = canonicalizel (&ldc, &ld);
if (canonicalize_ret == !canonical)
{
printf ("PASS: canonicalizel test %zu\n", i);
bool canon_ok;
if (!canonical)
canon_ok = ldc == 12345.0L;
else if (isnan (ld))
canon_ok = isnan (ldc) && !issignaling (ldc);
else
canon_ok = ldc == ld;
if (canon_ok)
printf ("PASS: canonicalized value test %zu\n", i);
else
{
printf ("FAIL: canonicalized value test %zu\n", i);
result = 1;
}
}
else
{
printf ("FAIL: canonicalizel test %zu\n", i);
result = 1;
}
}
else
{
printf ("FAIL: iscanonical test %zu\n", i);
result = 1;
}
}
return result;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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