Cpp > Programs

CPP - Reverse String without Strrev function

#include <iostream.h>
#include <string.h>

char* ReverseString (char *str)
{
   int len = strlen(str);
   char *result = new char[len + 1];
   char *res = result + len;

    *res-- = '\0';
   while (*str)
       *res-- = *str++;
   return result;
}

int main (void)
{
   char *str = "Hello";

   cout << ReverseString(str) << '\n';

    return 0;
}