Bitarray
A bit array (also known as bitmap, bitset, bit string, or bit vector) is an array data structure that compactly stores bits.
Bitvector
A data structure for an array of single bit values, usually with emphasis on memory-efficient storage and performance.
Others
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Why is the bitvector 32 structure more efficient than bitarray from question Why BitVector 32 structure is more efficient than BitArray? |
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You will probably find that bitvector performs a good deal better than bitarray from question Performance improvement for mirroring bit matrix around the diagonal |