Зеркальное отражение строки

#include <iostream>
using std::cout;
 
int IsPalindrom (char *str)
{   int i = -1, j = strlen(str);
    while (++i < --j)
        if (str[i] != str[j])
            return 0;
    return 1;
}
 
char *Mirror (char *str)
{   int size = 2*strlen(str);
    char *mirror = new char [size];
    
    int i = -1, j = size-1;
    mirror[j] = '\0';
    while (++i < --j)
        mirror[i] = mirror[j] = str[i];
    mirror[i] = str[i];
    
    return mirror;
}
 
void Delete (char *str)
{   delete [] str;
}
 
 
int main()
{   char *s = "12345";
 
    if (IsPalindrom (s))
        cout << s << "\nAlready palindrom. No changes\n";
    else
    {   cout << s << "\nNot palindrom. Let's transform it\n";
        char *mirror = Mirror (s);
        cout << mirror;
        Delete (mirror);
    }
    
    getchar();
    return 0;
}