یادآوری: نحوه عملکرد توابع _strupr و _strlwr

#include <iostream>
#include <string>
using namespace std;
void main()
{
   char string[] = "The String to End All Strings!";
     cout<<"Mixed: "<<string<<endl;
       cout<<"Uper: "<<strupr(string)<<endl;
         char* lwr_str=strlwr(string);
           cout<<"Lower: "<<lwr_str<<endl;
}

//end