#include <iostream>
#include "line_numbers.h"
using namespace std;
BEGIN_PROGRAM
case -20: cout << "Negative line numbers are AOKAY" << endl;
case -10: return 0;
case 0: cout << "Using 'line numbers' in C++" << endl;
case 100: cout << "Let's GOTO!" << endl;
case 200: GOTO(400);
case 300: cout << "Won't see this line!" << endl;
case 400: cout << "Hello World!" << endl;
case 450: cout << "Let's GOSUB!" << endl;
case 460: GOSUB(600);
case 470: cout << "Returned from sub!" << endl;
case 499: cout << "The end. Fin. Done." << endl;
case 500: return 0;
case 600: cout << "The subroutine!" << endl;
case 610: GOSUB(499);
case 620: GOSUB(-20);
case 700: return 0;
END_PROGRAM
#ifndef LINENUMBERS_H_6d9737bc1ea44b46b8e3937e3ac5e2ca
#define LINENUMBERS_H_6d9737bc1ea44b46b8e3937e3ac5e2ca
#define GOTO(X) { line = (X); break; }
#define GOSUB(X) { main((X), NULL); }
#define BEGIN_PROGRAM int main(int line, char* argv[]) { while(true) { switch(argv == NULL ? line : (argv = NULL, 0)) {
#define END_PROGRAM default: return 0; } } }
#endif
