Function abs_diff

src/backend/cuda/kernel/fast.hpp:82–85

abs_diff() Returns absolute difference of x and y

// abs_diff()
// Returns absolute difference of x and y
inline __device__ int abs_diff(const int x, const int y) {
    int i = x - y;
    return max(-i, i);
}
inline __device__ unsigned abs_diff(const unsigned x, const unsigned y) {
    int i = (int)x - (int)y;
    return max(-i, i);