Function AlignToMultiple

layers/utils/math_utils.h:122–126

// returns the smallest multiple of p greater than or equal to x
template <typename T>
constexpr T AlignToMultiple(T x, T p) {
    static_assert(std::numeric_limits<T>::is_integer, "Unsigned integer required.");
    static_assert(std::is_unsigned<T>::value, "Unsigned integer required.");
    return ((x + p - 1) / p) * p;
}

// Returns the 0-based index of the LSB. An input mask of 0 yields -1
static inline int LeastSignificantBit(uint32_t mask) { return u_ffs(static_cast<int>(mask)) - 1; }