Question

I was wondering if we can force std::cin so it doesn’t performs any implicit conversion between data types, for e.g:

unsigned int number;
cout<<"Please input a number :";
if(std::cin>>number)cout<<std::endl<<"Good number";
else cout<<"Bad number";

So if you punch -23 or 26.3 , it will simply perform implicit conversion and store the value in number which isn’t I want. So can we stop this?

Thanks

Answer 1

cin is going to store the value into the data type you provide. unsigned int will not take signed numbers so it will overflow to the largest unsigned int or to 0. In your example, you are providing a double constant, which is not an unsigned int. Change your unsigned int to a double if you want it to work the way you intended.