Function ImBitArrayGetStorageSizeInBytes

KBotExt/imgui/imgui_internal.h:544–544

#define         IM_BITARRAY_TESTBIT(_ARRAY, _N)                 ((_ARRAY[(_N) >> 5] & ((ImU32)1 << ((_N) & 31))) != 0) // Macro version of ImBitArrayTestBit(): ensure args have side-effect or are costly!
#define         IM_BITARRAY_CLEARBIT(_ARRAY, _N)                ((_ARRAY[(_N) >> 5] &= ~((ImU32)1 << ((_N) & 31))))    // Macro version of ImBitArrayClearBit(): ensure args have side-effect or are costly!
inline size_t   ImBitArrayGetStorageSizeInBytes(int bitcount) { return (size_t)((bitcount + 31) >> 5) << 2; }
inline void     ImBitArrayClearAllBits(ImU32* arr, int bitcount) { memset(arr, 0, ImBitArrayGetStorageSizeInBytes(bitcount)); }
inline bool     ImBitArrayTestBit(const ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); return (arr[n >> 5] & mask) != 0; }
inline void     ImBitArrayClearBit(ImU32* arr, int n) { ImU32 mask = (ImU32)1 << (n & 31); arr[n >> 5] &= ~mask; }