//===----------------------------------------------------------------------===//
//
// Part of the libcu++ 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
// SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.
//
//===----------------------------------------------------------------------===//

// UNSUPPORTED: nvrtc
// UNSUPPORTED: msvc
#include <nv/target>

#include <complex>

#include <cuda/std/complex>
#include <cuda/std/cassert>

#include "test_macros.h"

template <class T, class U>
void test_assignment() {
    ::cuda::std::complex<T> from_only_real{static_cast<T>(-1.0), static_cast<T>(1.0)};
    ::cuda::std::complex<T> from_only_imag{static_cast<T>(-1.0), static_cast<T>(1.0)};
    ::cuda::std::complex<T> from_real_imag{static_cast<T>(-1.0), static_cast<T>(1.0)};

    const ::std::complex<U> only_real{static_cast<U>(42.0), 0 };
    const ::std::complex<U> only_imag{0, static_cast<U>(42.0)};
    const ::std::complex<U> real_imag{static_cast<U>(42.0), static_cast<U>(1337.0)};

    from_only_real = only_real;
    from_only_imag = only_imag;
    from_real_imag = real_imag;

    assert(from_only_real.real() == static_cast<T>(42.0));
    assert(from_only_real.imag() == 0);
    assert(from_only_imag.real() == 0);
    assert(from_only_imag.imag() == static_cast<T>(42.0));
    assert(from_real_imag.real() == static_cast<T>(42.0));
    assert(from_real_imag.imag() == static_cast<T>(1337.0));
}

void test() {
    test_assignment<float, float>();
    test_assignment<double, float>();
    test_assignment<double, double>();
}

int main(int arg, char ** argv)
{
NV_IF_TARGET(
NV_IS_HOST, (
    test();
));

    return 0;
}
