Jwendl.NET

Here is the answer to one question the interviewer gave me:

#include <iostream.h>
using namespace std;

// toLower
char *toLower(char *ptr);
int main() {
   char *test = new char[251];
   cout << "Enter a string to lower : ";
   cin.getline(test, 250);
   toLower(test);
   cout << "The result is : " << test << endl;
}

char *toLower(char *ptr) {
   while (*ptr != '\0') {
      if (*ptr > 'A' && *ptr < 'Z') {
         *ptr -= 'A' - 'a';
      }
      *ptr++;
   }
   return ptr;
}