dynamic_bitset Header-only boost::dynamic_bitset, extracted as base::dynamic_bitset. https://www.boost.org/doc/libs/1_70_0/libs/dynamic_bitset/dynamic_bitset.html Example of usage: #include "dynamic_bitset.h" using Bitset = base::dynamic_bitset<uint64_t>; Bitset bitset;