Method IsSubsetOf

src/util/bitset.h:222–222

Check if bitset a is a subset of bitset b (= every 1 bit in a is also in b). */

    constexpr bool IsSupersetOf(const IntBitSet& a) const noexcept { return (a.m_val & ~m_val) == 0; }
    /** Check if bitset a is a subset of bitset b (= every 1 bit in a is also in b). */
    constexpr bool IsSubsetOf(const IntBitSet& a) const noexcept { return (m_val & ~a.m_val) == 0; }
    /** Swap two bitsets. */
    friend constexpr void swap(IntBitSet& a, IntBitSet& b) noexcept { std::swap(a.m_val, b.m_val); }
};