C function to reverse a string

reverse_string.c

void
reverseStr(char *str)
{
   int len = 0;
   int init = 0;

   while (*(str + len) != '\0') {
        len++;
   }

   len--;

   while (init < len) {
     char temp = *(str + init);
     *(str + init) = *(str + len);
     *(str + len) = temp;
     init++;
     len--;
   }
}