Method bits

src/arith_uint256.cpp:171–183

template <unsigned int BITS>
unsigned int base_uint<BITS>::bits() const
{
    for (int pos = WIDTH - 1; pos >= 0; pos--) {
        if (pn[pos]) {
            for (int nbits = 31; nbits > 0; nbits--) {
                if (pn[pos] & 1U << nbits)
                    return 32 * pos + nbits + 1;
            }
            return 32 * pos + 1;
        }
    }
    return 0;
}

// Explicit instantiations for base_uint<256>
template base_uint<256>::base_uint(const std::string&);