Question

How to convert binary representation into a number in C++

Answer 1

#include <iostream>
#include <bitset>

using std::cout;
using std::endl;

int main()
{
	cout << "\"100110101\" : " << std::bitset<100>(std::string("100110101")).to_ulong() << endl;
}

/*
run:

"100110101" : 309

*/

 

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