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std::bitset is a container for bits.
#include <bitset> #include <iostream> int main() { const int sz = 8; std::bitset<sz> x; for (int i=0; i!=sz; ++i) { std::cout << x << '\t' << x.to_ulong() << '\n'; x[i] = true; } std::cout << x << '\t' << x.to_ulong() << '\n'; }
Screen output:
00000000 0 00000001 1 00000011 3 00000111 7 00001111 15 00011111 31 00111111 63 01111111 127 11111111 255
