/* * std::bitset * further references: * https://github.com/diegum/bitset-iterator * https://lemire.me/blog/2018/02/21/iterating-over-set-bits-quickly/ */ #include #include #include #include #include #include int main(void){ {//initialization std::bitset<4>bs0;//0000 std::bitset<4>bs1(std::string("1010"));//1010 std::bitset<4>bs2(std::string("1111",2));//0011 std::bitset<4>bs3(std::string("1111",2,3));//???? //std::bitset<4>bs4(std::string(ULONG_MAX);//>=c++11 std::string pat="oxox"; std::bitset<8> b6(std::string(pat),0,pat.size(),'o','x');//0101 } {//access/mutation std::bitset<4>bs; bs[0]=true; bs[1]=!bs[0]; bs[2]=!bs[1]; bs[3]=!bs[2]; std::cout< bs(std::string("0101")); for(std::size_t i=0;ibs0(std::string("1001")); std::bitset<4>bs1(std::string("0011")); std::cout<<(bs0^=bs1)<<'\n'; std::cout<<(bs0&=bs1)<<'\n'; std::cout<<(bs0|=bs1)<<'\n'; std::cout<<(bs0<<=2)<<'\n'; std::cout<<(bs0>>=1)<<'\n'; std::cout<<(~bs1)<<'\n'; std::cout<<(bs1<<1)<<'\n'; std::cout<<(bs1>>1)<<'\n'; std::cout<<(bs0==bs1)<<'\n'; std::cout<<(bs0!=bs1)<<'\n'; std::cout<<(bs0&bs1)<<'\n'; std::cout<<(bs0|bs1)<<'\n'; std::cout<<(bs0^bs1)<<'\n'; } return EXIT_SUCCESS; }

cxx_std_bitset