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#pragma once
struct device_complex {
double x, y;
};
template <int N>
__host__ __device__ inline device_complex complex_power(double x, double y, double x2, double y2) {
device_complex next = complex_power<N - 1>(x, y, x2, y2);
return device_complex{
x * next.x - y * next.y,
x * next.y + y * next.x
};
}
template <>
__host__ __device__ inline device_complex complex_power<2>(double x, double y, double x2, double y2) {
return device_complex{x2 - y2, 2 * x * y};
}
template <>
__host__ __device__ inline device_complex complex_power<1>(double x, double y, double x2, double y2) {
(void)x2; (void)y2;
return device_complex{x, y};
}
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