//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <complex>
// test cases
#ifndef CASES_H
#define CASES_H
#include <cassert>
#include <complex>
#include <type_traits>
#include "test_macros.h"
TEST_CONSTEXPR_CXX20 const std::complex<double> testcases[] =
{
std::complex<double>( 1.e-6, 1.e-6),
std::complex<double>(-1.e-6, 1.e-6),
std::complex<double>(-1.e-6, -1.e-6),
std::complex<double>( 1.e-6, -1.e-6),
std::complex<double>( 1.e+6, 1.e-6),
std::complex<double>(-1.e+6, 1.e-6),
std::complex<double>(-1.e+6, -1.e-6),
std::complex<double>( 1.e+6, -1.e-6),
std::complex<double>( 1.e-6, 1.e+6),
std::complex<double>(-1.e-6, 1.e+6),
std::complex<double>(-1.e-6, -1.e+6),
std::complex<double>( 1.e-6, -1.e+6),
std::complex<double>( 1.e+6, 1.e+6),
std::complex<double>(-1.e+6, 1.e+6),
std::complex<double>(-1.e+6, -1.e+6),
std::complex<double>( 1.e+6, -1.e+6),
std::complex<double>(-0, -1.e-6),
std::complex<double>(-0, 1.e-6),
std::complex<double>(-0, 1.e+6),
std::complex<double>(-0, -1.e+6),
std::complex<double>( 0, -1.e-6),
std::complex<double>( 0, 1.e-6),
std::complex<double>( 0, 1.e+6),
std::complex<double>( 0, -1.e+6),
std::complex<double>(-1.e-6, -0),
std::complex<double>( 1.e-6, -0),
std::complex<double>( 1.e+6, -0),
std::complex<double>(-1.e+6, -0),
std::complex<double>(-1.e-6, 0),
std::complex<double>( 1.e-6, 0),
std::complex<double>( 1.e+6, 0),
std::complex<double>(-1.e+6, 0),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(-std::numeric_limits<double>::infinity(), std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(-2, std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(-1, std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(-0.5, std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(-0., std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(+0., std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(0.5, std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(1, std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(2, std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(std::numeric_limits<double>::infinity(), std::numeric_limits<double>::quiet_NaN()),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), -std::numeric_limits<double>::infinity()),
std::complex<double>(-std::numeric_limits<double>::infinity(), -std::numeric_limits<double>::infinity()),
std::complex<double>(-2, -std::numeric_limits<double>::infinity()),
std::complex<double>(-1, -std::numeric_limits<double>::infinity()),
std::complex<double>(-0.5, -std::numeric_limits<double>::infinity()),
std::complex<double>(-0., -std::numeric_limits<double>::infinity()),
std::complex<double>(+0., -std::numeric_limits<double>::infinity()),
std::complex<double>(0.5, -std::numeric_limits<double>::infinity()),
std::complex<double>(1, -std::numeric_limits<double>::infinity()),
std::complex<double>(2, -std::numeric_limits<double>::infinity()),
std::complex<double>(std::numeric_limits<double>::infinity(), -std::numeric_limits<double>::infinity()),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), -2),
std::complex<double>(-std::numeric_limits<double>::infinity(), -2),
std::complex<double>(-2, -2),
std::complex<double>(-1, -2),
std::complex<double>(-0.5, -2),
std::complex<double>(-0., -2),
std::complex<double>(+0., -2),
std::complex<double>(0.5, -2),
std::complex<double>(1, -2),
std::complex<double>(2, -2),
std::complex<double>(std::numeric_limits<double>::infinity(), -2),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), -1),
std::complex<double>(-std::numeric_limits<double>::infinity(), -1),
std::complex<double>(-2, -1),
std::complex<double>(-1, -1),
std::complex<double>(-0.5, -1),
std::complex<double>(-0., -1),
std::complex<double>(+0., -1),
std::complex<double>(0.5, -1),
std::complex<double>(1, -1),
std::complex<double>(2, -1),
std::complex<double>(std::numeric_limits<double>::infinity(), -1),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), -0.5),
std::complex<double>(-std::numeric_limits<double>::infinity(), -0.5),
std::complex<double>(-2, -0.5),
std::complex<double>(-1, -0.5),
std::complex<double>(-0.5, -0.5),
std::complex<double>(-0., -0.5),
std::complex<double>(+0., -0.5),
std::complex<double>(0.5, -0.5),
std::complex<double>(1, -0.5),
std::complex<double>(2, -0.5),
std::complex<double>(std::numeric_limits<double>::infinity(), -0.5),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), -0.),
std::complex<double>(-std::numeric_limits<double>::infinity(), -0.),
std::complex<double>(-2, -0.),
std::complex<double>(-1, -0.),
std::complex<double>(-0.5, -0.),
std::complex<double>(-0., -0.),
std::complex<double>(+0., -0.),
std::complex<double>(0.5, -0.),
std::complex<double>(1, -0.),
std::complex<double>(2, -0.),
std::complex<double>(std::numeric_limits<double>::infinity(), -0.),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), +0.),
std::complex<double>(-std::numeric_limits<double>::infinity(), +0.),
std::complex<double>(-2, +0.),
std::complex<double>(-1, +0.),
std::complex<double>(-0.5, +0.),
std::complex<double>(-0., +0.),
std::complex<double>(+0., +0.),
std::complex<double>(0.5, +0.),
std::complex<double>(1, +0.),
std::complex<double>(2, +0.),
std::complex<double>(std::numeric_limits<double>::infinity(), +0.),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), 0.5),
std::complex<double>(-std::numeric_limits<double>::infinity(), 0.5),
std::complex<double>(-2, 0.5),
std::complex<double>(-1, 0.5),
std::complex<double>(-0.5, 0.5),
std::complex<double>(-0., 0.5),
std::complex<double>(+0., 0.5),
std::complex<double>(0.5, 0.5),
std::complex<double>(1, 0.5),
std::complex<double>(2, 0.5),
std::complex<double>(std::numeric_limits<double>::infinity(), 0.5),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), 1),
std::complex<double>(-std::numeric_limits<double>::infinity(), 1),
std::complex<double>(-2, 1),
std::complex<double>(-1, 1),
std::complex<double>(-0.5, 1),
std::complex<double>(-0., 1),
std::complex<double>(+0., 1),
std::complex<double>(0.5, 1),
std::complex<double>(1, 1),
std::complex<double>(2, 1),
std::complex<double>(std::numeric_limits<double>::infinity(), 1),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), 2),
std::complex<double>(-std::numeric_limits<double>::infinity(), 2),
std::complex<double>(-2, 2),
std::complex<double>(-1, 2),
std::complex<double>(-0.5, 2),
std::complex<double>(-0., 2),
std::complex<double>(+0., 2),
std::complex<double>(0.5, 2),
std::complex<double>(1, 2),
std::complex<double>(2, 2),
std::complex<double>(std::numeric_limits<double>::infinity(), 2),
std::complex<double>(std::numeric_limits<double>::quiet_NaN(), std::numeric_limits<double>::infinity()),
std::complex<double>(-std::numeric_limits<double>::infinity(), std::numeric_limits<double>::infinity()),
std::complex<double>(-2, std::numeric_limits<double>::infinity()),
std::complex<double>(-1, std::numeric_limits<double>::infinity()),
std::complex<double>(-0.5, std::numeric_limits<double>::infinity()),
std::complex<double>(-0., std::numeric_limits<double>::infinity()),
std::complex<double>(+0., std::numeric_limits<double>::infinity()),
std::complex<double>(0.5, std::numeric_limits<double>::infinity()),
std::complex<double>(1, std::numeric_limits<double>::infinity()),
std::complex<double>(2, std::numeric_limits<double>::infinity()),
std::complex<double>(std::numeric_limits<double>::infinity(), std::numeric_limits<double>::infinity())
};
enum {zero, non_zero, inf, NaN, non_zero_nan};
template <class T, typename std::enable_if<std::is_floating_point<T>::value, int>::type = 0>
TEST_CONSTEXPR_CXX20 bool test_isinf(T v) {
return v == std::numeric_limits<T>::infinity() || v == -std::numeric_limits<T>::infinity();
}
template <class T, typename std::enable_if<std::is_arithmetic<T>::value, int>::type = 0>
TEST_CONSTEXPR_CXX20 bool test_isnan(T v) {
return v != v;
}
template <class T>
TEST_CONSTEXPR_CXX20
int
classify(const std::complex<T>& x)
{
if (x == std::complex<T>())
return zero;
if (test_isinf(x.real()) || test_isinf(x.imag()))
return inf;
if (test_isnan(x.real()) && test_isnan(x.imag()))
return NaN;
if (test_isnan(x.real()))
{
if (x.imag() == T(0))
return NaN;
return non_zero_nan;
}
if (test_isnan(x.imag()))
{
if (x.real() == T(0))
return NaN;
return non_zero_nan;
}
return non_zero;
}
inline
int
classify(double x)
{
if (x == 0)
return zero;
if (std::isinf(x))
return inf;
if (std::isnan(x))
return NaN;
return non_zero;
}
void is_about(float x, float y)
{
assert(std::abs((x-y)/(x+y)) < 1.e-6);
}
void is_about(double x, double y)
{
assert(std::abs((x-y)/(x+y)) < 1.e-14);
}
void is_about(long double x, long double y)
{
assert(std::abs((x-y)/(x+y)) < 1.e-14);
}
#endif // CASES_H