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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <complex>
// template<class T>
// T
// abs(const complex<T>& x);
#include <complex>
#include <cassert>
#include "../cases.h"
template <class T>
void
test()
{
std::complex<T> z(3, 4);
assert(abs(z) == 5);
}
void test_edges()
{
const unsigned N = sizeof(x) / sizeof(x[0]);
for (unsigned i = 0; i < N; ++i)
{
double r = abs(x[i]);
switch (classify(x[i]))
{
case zero:
assert(r == 0);
assert(!std::signbit(r));
break;
case non_zero:
assert(std::isfinite(r) && r > 0);
break;
case inf:
assert(std::isinf(r) && r > 0);
break;
case NaN:
assert(std::isnan(r));
break;
case non_zero_nan:
assert(std::isnan(r));
break;
}
}
}
int main()
{
test<float>();
test<double>();
test<long double>();
test_edges();
}
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