Function getDoubleNegative11

src/backend/cuda/kernel/random_engine.hpp:152–158

Generates rationals in (-1, 1]

// Generates rationals in (-1, 1]
__device__ static double getDoubleNegative11(uint num1, uint num2) {
    uint32_t arr[2] = {num2, num1};
    uint64_t num;

    memcpy(&num, arr, sizeof(uint64_t));
    return fma(static_cast<double>(num), signed_factor, half_factor);
}

namespace {