6.23 try catch overflow_error

#include<iostream>
#include<bitset>
using namespace std;
int main()
{
	bitset<33> b;
	b.flip();
	try
	{
		cout<<b.to_ulong();
	}catch(overflow_error err)
	{
		cout<<err.what()<<endl<<"Enter q  to exit"<<endl;
		char c;
		cin>>c;
		if(cin&&c=='q')
			return 0;
	}

}