You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
2.8 KiB
C++
115 lines
2.8 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// 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>
|
|
|
|
// template<class T>
|
|
// complex<T>
|
|
// polar(const T& rho, const T& theta = T()); // changed from '0' by LWG#2870
|
|
|
|
#include <complex>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "../cases.h"
|
|
|
|
template <class T>
|
|
void
|
|
test(const T& rho, std::complex<T> x)
|
|
{
|
|
assert(std::polar(rho) == x);
|
|
}
|
|
|
|
template <class T>
|
|
void
|
|
test(const T& rho, const T& theta, std::complex<T> x)
|
|
{
|
|
assert(std::polar(rho, theta) == x);
|
|
}
|
|
|
|
template <class T>
|
|
void
|
|
test()
|
|
{
|
|
test(T(0), std::complex<T>(0, 0));
|
|
test(T(1), std::complex<T>(1, 0));
|
|
test(T(100), std::complex<T>(100, 0));
|
|
test(T(0), T(0), std::complex<T>(0, 0));
|
|
test(T(1), T(0), std::complex<T>(1, 0));
|
|
test(T(100), T(0), std::complex<T>(100, 0));
|
|
}
|
|
|
|
void test_edges()
|
|
{
|
|
const unsigned N = sizeof(testcases) / sizeof(testcases[0]);
|
|
for (unsigned i = 0; i < N; ++i)
|
|
{
|
|
double r = real(testcases[i]);
|
|
double theta = imag(testcases[i]);
|
|
std::complex<double> z = std::polar(r, theta);
|
|
switch (classify(r))
|
|
{
|
|
case zero:
|
|
if (std::signbit(r) || classify(theta) == inf || classify(theta) == NaN)
|
|
{
|
|
int c = classify(z);
|
|
assert(c == NaN || c == non_zero_nan);
|
|
}
|
|
else
|
|
{
|
|
assert(z == std::complex<double>());
|
|
}
|
|
break;
|
|
case non_zero:
|
|
if (std::signbit(r) || classify(theta) == inf || classify(theta) == NaN)
|
|
{
|
|
int c = classify(z);
|
|
assert(c == NaN || c == non_zero_nan);
|
|
}
|
|
else
|
|
{
|
|
is_about(std::abs(z), r);
|
|
}
|
|
break;
|
|
case inf:
|
|
if (r < 0)
|
|
{
|
|
int c = classify(z);
|
|
assert(c == NaN || c == non_zero_nan);
|
|
}
|
|
else
|
|
{
|
|
assert(classify(z) == inf);
|
|
if (classify(theta) != NaN && classify(theta) != inf)
|
|
{
|
|
assert(classify(real(z)) != NaN);
|
|
assert(classify(imag(z)) != NaN);
|
|
}
|
|
}
|
|
break;
|
|
case NaN:
|
|
case non_zero_nan:
|
|
{
|
|
int c = classify(z);
|
|
assert(c == NaN || c == non_zero_nan);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
test<float>();
|
|
test<double>();
|
|
test<long double>();
|
|
test_edges();
|
|
|
|
return 0;
|
|
}
|