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glibc/math/test-math-iseqsig.cc

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/* Test for the C++ implementation of iseqsig.
Copyright (C) 2017-2024 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/>. */
#define _GNU_SOURCE 1
#include <float.h>
#include <math.h>
#include <stdio.h>
#include <limits>
/* There is no NaN for _Float128 in std::numeric_limits.
Include ieee754_float128.h and use the bitfields in the union
ieee854_float128.ieee_nan to build a NaN. */
#if __HAVE_DISTINCT_FLOAT128
# include <ieee754_float128.h>
#endif
#include <support/check.h>
static void
check (int actual, int expected, const char *actual_expr, int line)
{
if (actual != expected)
{
support_record_failure ();
printf ("%s:%d: error: %s\n", __FILE__, line, actual_expr);
printf ("%s:%d: expected: %d\n", __FILE__, line, expected);
printf ("%s:%d: actual: %d\n", __FILE__, line, actual);
}
}
#define CHECK(actual, expected) \
check ((actual), (expected), #actual, __LINE__)
template <class T1, class T2>
static void
check_type ()
{
T1 t1 = 0;
T2 t2 = 0;
CHECK (iseqsig (t1, t2), 1);
t2 = 1;
CHECK (iseqsig (t1, t2), 0);
if (std::numeric_limits<T1>::has_quiet_NaN
&& std::numeric_limits<T2>::has_quiet_NaN)
{
CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (), t2), 0);
CHECK (iseqsig (t1, std::numeric_limits<T2>::quiet_NaN ()), 0);
CHECK (iseqsig (std::numeric_limits<T1>::quiet_NaN (),
std::numeric_limits<T2>::quiet_NaN ()), 0);
}
}
/* Run minimal tests of iseqsig for a pair of types, without relying
on C++ library support or knowledge of the representation. */
template <class T1, class T2>
static void
check_type_minimal ()
{
T1 t1 = 0;
T2 t2 = 0;
CHECK (iseqsig (t1, t2), 1);
t2 = 1;
CHECK (iseqsig (t1, t2), 0);
}
#if __HAVE_DISTINCT_FLOAT128
static void
check_float128 ()
{
ieee854_float128 q1, q2, q3_nan;
q1.d = 0;
q2.d = 1;
q3_nan.ieee_nan.negative = 0;
q3_nan.ieee_nan.exponent = 0x7FFF;
q3_nan.ieee_nan.quiet_nan = 1;
q3_nan.ieee_nan.mantissa0 = 0x0000;
q3_nan.ieee_nan.mantissa1 = 0x00000000;
q3_nan.ieee_nan.mantissa2 = 0x00000000;
q3_nan.ieee_nan.mantissa3 = 0x00000000;
CHECK (iseqsig (q1.d, q1.d), 1);
CHECK (iseqsig (q1.d, q2.d), 0);
CHECK (iseqsig (q1.d, q3_nan.d), 0);
CHECK (iseqsig (q3_nan.d, q3_nan.d), 0);
}
#endif
static int
do_test (void)
{
check_type<float, float> ();
check_type<float, double> ();
check_type<float, long double> ();
check_type<double, float> ();
check_type<double, double> ();
check_type<double, long double> ();
check_type<long double, float> ();
check_type<long double, double> ();
check_type<long double, long double> ();
#if __HAVE_DISTINCT_FLOAT128
check_float128 ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<float, _Float16> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<float, _Float32> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<float, _Float64> ();
#endif
#if __HAVE_FLOAT128
check_type_minimal<float, _Float128> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<float, _Float32x> ();
#endif
#if __HAVE_FLOAT64X
check_type_minimal<float, _Float64x> ();
#endif
#if __HAVE_FLOAT128X
check_type_minimal<float, _Float128x> ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<double, _Float16> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<double, _Float32> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<double, _Float64> ();
#endif
#if __HAVE_FLOAT128
check_type_minimal<double, _Float128> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<double, _Float32x> ();
#endif
#if __HAVE_FLOAT64X
check_type_minimal<double, _Float64x> ();
#endif
#if __HAVE_FLOAT128X
check_type_minimal<double, _Float128x> ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<long double, _Float16> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<long double, _Float32> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<long double, _Float64> ();
#endif
#if __HAVE_FLOAT128 && LDBL_MANT_DIG != 106
check_type_minimal<long double, _Float128> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<long double, _Float32x> ();
#endif
#if __HAVE_FLOAT64X && LDBL_MANT_DIG != 106
check_type_minimal<long double, _Float64x> ();
#endif
#if __HAVE_FLOAT128X && LDBL_MANT_DIG != 106
check_type_minimal<long double, _Float128x> ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<_Float16, float> ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<_Float16, double> ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<_Float16, long double> ();
#endif
#if __HAVE_FLOAT16
check_type_minimal<_Float16, _Float16> ();
#endif
#if __HAVE_FLOAT16 && __HAVE_FLOAT32
check_type_minimal<_Float16, _Float32> ();
#endif
#if __HAVE_FLOAT16 && __HAVE_FLOAT64
check_type_minimal<_Float16, _Float64> ();
#endif
#if __HAVE_FLOAT16 && __HAVE_FLOAT128
check_type_minimal<_Float16, _Float128> ();
#endif
#if __HAVE_FLOAT16 && __HAVE_FLOAT32X
check_type_minimal<_Float16, _Float32x> ();
#endif
#if __HAVE_FLOAT16 && __HAVE_FLOAT64X
check_type_minimal<_Float16, _Float64x> ();
#endif
#if __HAVE_FLOAT16 && __HAVE_FLOAT128X
check_type_minimal<_Float16, _Float128x> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<_Float32, float> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<_Float32, double> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<_Float32, long double> ();
#endif
#if __HAVE_FLOAT32 && __HAVE_FLOAT16
check_type_minimal<_Float32, _Float16> ();
#endif
#if __HAVE_FLOAT32
check_type_minimal<_Float32, _Float32> ();
#endif
#if __HAVE_FLOAT32 && __HAVE_FLOAT64
check_type_minimal<_Float32, _Float64> ();
#endif
#if __HAVE_FLOAT32 && __HAVE_FLOAT128
check_type_minimal<_Float32, _Float128> ();
#endif
#if __HAVE_FLOAT32 && __HAVE_FLOAT32X
check_type_minimal<_Float32, _Float32x> ();
#endif
#if __HAVE_FLOAT32 && __HAVE_FLOAT64X
check_type_minimal<_Float32, _Float64x> ();
#endif
#if __HAVE_FLOAT32 && __HAVE_FLOAT128X
check_type_minimal<_Float32, _Float128x> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<_Float64, float> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<_Float64, double> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<_Float64, long double> ();
#endif
#if __HAVE_FLOAT64 && __HAVE_FLOAT16
check_type_minimal<_Float64, _Float16> ();
#endif
#if __HAVE_FLOAT64 && __HAVE_FLOAT32
check_type_minimal<_Float64, _Float32> ();
#endif
#if __HAVE_FLOAT64
check_type_minimal<_Float64, _Float64> ();
#endif
#if __HAVE_FLOAT64 && __HAVE_FLOAT128
check_type_minimal<_Float64, _Float128> ();
#endif
#if __HAVE_FLOAT64 && __HAVE_FLOAT32X
check_type_minimal<_Float64, _Float32x> ();
#endif
#if __HAVE_FLOAT64 && __HAVE_FLOAT64X
check_type_minimal<_Float64, _Float64x> ();
#endif
#if __HAVE_FLOAT64 && __HAVE_FLOAT128X
check_type_minimal<_Float64, _Float128x> ();
#endif
#if __HAVE_FLOAT128
check_type_minimal<_Float128, float> ();
#endif
#if __HAVE_FLOAT128
check_type_minimal<_Float128, double> ();
#endif
#if __HAVE_FLOAT128 && LDBL_MANT_DIG != 106
check_type_minimal<_Float128, long double> ();
#endif
#if __HAVE_FLOAT128 && __HAVE_FLOAT16
check_type_minimal<_Float128, _Float16> ();
#endif
#if __HAVE_FLOAT128 && __HAVE_FLOAT32
check_type_minimal<_Float128, _Float32> ();
#endif
#if __HAVE_FLOAT128 && __HAVE_FLOAT64
check_type_minimal<_Float128, _Float64> ();
#endif
#if __HAVE_FLOAT128
check_type_minimal<_Float128, _Float128> ();
#endif
#if __HAVE_FLOAT128 && __HAVE_FLOAT32X
check_type_minimal<_Float128, _Float32x> ();
#endif
#if __HAVE_FLOAT128 && __HAVE_FLOAT64X
check_type_minimal<_Float128, _Float64x> ();
#endif
#if __HAVE_FLOAT128 && __HAVE_FLOAT128X
check_type_minimal<_Float128, _Float128x> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<_Float32x, float> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<_Float32x, double> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<_Float32x, long double> ();
#endif
#if __HAVE_FLOAT32X && __HAVE_FLOAT16
check_type_minimal<_Float32x, _Float16> ();
#endif
#if __HAVE_FLOAT32X && __HAVE_FLOAT32
check_type_minimal<_Float32x, _Float32> ();
#endif
#if __HAVE_FLOAT32X && __HAVE_FLOAT64
check_type_minimal<_Float32x, _Float64> ();
#endif
#if __HAVE_FLOAT32X && __HAVE_FLOAT128
check_type_minimal<_Float32x, _Float128> ();
#endif
#if __HAVE_FLOAT32X
check_type_minimal<_Float32x, _Float32x> ();
#endif
#if __HAVE_FLOAT32X && __HAVE_FLOAT64X
check_type_minimal<_Float32x, _Float64x> ();
#endif
#if __HAVE_FLOAT32X && __HAVE_FLOAT128X
check_type_minimal<_Float32x, _Float128x> ();
#endif
#if __HAVE_FLOAT64X
check_type_minimal<_Float64x, float> ();
#endif
#if __HAVE_FLOAT64X
check_type_minimal<_Float64x, double> ();
#endif
#if __HAVE_FLOAT64X && LDBL_MANT_DIG != 106
check_type_minimal<_Float64x, long double> ();
#endif
#if __HAVE_FLOAT64X && __HAVE_FLOAT16
check_type_minimal<_Float64x, _Float16> ();
#endif
#if __HAVE_FLOAT64X && __HAVE_FLOAT32
check_type_minimal<_Float64x, _Float32> ();
#endif
#if __HAVE_FLOAT64X && __HAVE_FLOAT64
check_type_minimal<_Float64x, _Float64> ();
#endif
#if __HAVE_FLOAT64X && __HAVE_FLOAT128
check_type_minimal<_Float64x, _Float128> ();
#endif
#if __HAVE_FLOAT64X && __HAVE_FLOAT32X
check_type_minimal<_Float64x, _Float32x> ();
#endif
#if __HAVE_FLOAT64X
check_type_minimal<_Float64x, _Float64x> ();
#endif
#if __HAVE_FLOAT64X && __HAVE_FLOAT128X
check_type_minimal<_Float64x, _Float128x> ();
#endif
#if __HAVE_FLOAT128X
check_type_minimal<_Float128x, float> ();
#endif
#if __HAVE_FLOAT128X
check_type_minimal<_Float128x, double> ();
#endif
#if __HAVE_FLOAT128X && LDBL_MANT_DIG != 106
check_type_minimal<_Float128x, long double> ();
#endif
#if __HAVE_FLOAT128X && __HAVE_FLOAT16
check_type_minimal<_Float128x, _Float16> ();
#endif
#if __HAVE_FLOAT128X && __HAVE_FLOAT32
check_type_minimal<_Float128x, _Float32> ();
#endif
#if __HAVE_FLOAT128X && __HAVE_FLOAT64
check_type_minimal<_Float128x, _Float64> ();
#endif
#if __HAVE_FLOAT128X && __HAVE_FLOAT128
check_type_minimal<_Float128x, _Float128> ();
#endif
#if __HAVE_FLOAT128X && __HAVE_FLOAT32X
check_type_minimal<_Float128x, _Float32x> ();
#endif
#if __HAVE_FLOAT128X && __HAVE_FLOAT64X
check_type_minimal<_Float128x, _Float64x> ();
#endif
#if __HAVE_FLOAT128X
check_type_minimal<_Float128x, _Float128x> ();
#endif
return 0;
}
#include <support/test-driver.c>
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