Thread: Manipulating Input

Loop over each character of the string and call toupper on it:

Code:

#include <cctype>
#include <string>

using std::string;
using std::toupper;

for (string::size_type i = 0; i < str.length(); i++)
  str[i] = toupper(str[i]);

It would help to see what code you have already so that I can help you write something a bit simpler. If you're a beginner than I don't imagine you're using C++ string objects.