/*
  listing 5 - internal.h
*/

extern int c_open();
extern int c_close();
extern int c_exit();
extern int c_copy();
extern int c_paste();
extern int c_delete();
extern int c_move();
extern int c_compile();
extern int c_link();
extern int c_run();
extern int c_version();
extern int c_testchar();
