/* strrchr - Find the last occurrence of a character in a string @s: The string to be searched  */
char* strrchr(const char *s, int c)
/* strrchr - Find the last occurrence of a character in a string @s: The string to be searched  */
char* strrchr(const char *s, int c)
{
       const char *p = s + strlen(s);
       do {
           if (*p == (char)c)
               return (char *)p;
       } while (--p >= s);
       return NULL;
}