Class ImBitArray

KBotExt/imgui/imgui_internal.h:567–578

// Store 1-bit per value.
template<int BITCOUNT, int OFFSET = 0>
struct ImBitArray
{
	ImU32           Storage[(BITCOUNT + 31) >> 5];
	ImBitArray() { ClearAllBits(); }
	void            ClearAllBits() { memset(Storage, 0, sizeof(Storage)); }
	void            SetAllBits() { memset(Storage, 255, sizeof(Storage)); }
	bool            TestBit(int n) const { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return IM_BITARRAY_TESTBIT(Storage, n); }
	void            SetBit(int n) { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArraySetBit(Storage, n); }
	void            ClearBit(int n) { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArrayClearBit(Storage, n); }
	void            SetBitRange(int n, int n2) { n += OFFSET; n2 += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT && n2 > n && n2 <= BITCOUNT); ImBitArraySetBitRange(Storage, n, n2); } // Works on range [n..n2)
	bool            operator[](int n) const { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return IM_BITARRAY_TESTBIT(Storage, n); }
};

// Helper: ImBitVector
// Store 1-bit per value.