Method compute_fingerprint

csrc/cpu_ops.cpp:532–537

    int next_slot = 0;

    static void compute_fingerprint(const float* code, float* fp) {
        fp[0] = code[0];
        fp[1] = code[1];
        fp[2] = code[127];
        fp[3] = code[255];
    }

    const unsigned char* get_lut(const float* code) {
        float fp[4];