native function strdup (s)  // declare native
native function free(p)    // also need to free the result

var s = strdup ("hello world\n")
var p = s     // this is an integer type
for (;;) {
    var ch = peek (p, 1)   // read a single character
    if (ch == 0) {
        break
    }
    print (cast<char>(ch))   // print as a character
    p++
}
free (s)   // done with the memory now