Function getFloatNegative11

src/backend/cuda/kernel/random_engine.hpp:122–130

Generates rationals in (-1, 1]

// Generates rationals in (-1, 1]
__device__ static float getFloatNegative11(uint num) {
    // Conversion to floats adapted from Random123
    constexpr float factor =
        ((1.0) /
         (static_cast<double>(std::numeric_limits<int>::max()) + (1.0)));
    constexpr float half_factor = ((0.5f) * factor);

    return fmaf(static_cast<float>(num), factor, half_factor);
}

// Generates rationals in (0, 1]
__device__ static double getDouble01(uint num1, uint num2) {