C++ – Decimal to binary converting

std::bitset has a .to_string() method that returns a std::string holding a text representation in binary, with leading-zero padding.
Choose the width of the bitset as needed for your data, e.g. std::bitset<32> to get 32-character strings from 32-bit integers.
#include
#include

int main()
{
std::string binary = std::bitset<8>(128).to_string(); //to binary
std::cout<(binary).to_ulong();
std::cout<