4 ms·

I'm interested what computer languages do they use today for space vehicles? I place my bet on static-type :D ( joke )

• valevk 12y ago
  https://news.ycombinator.com/item?id=4339999 https://news.ycombinator.com/item?id=4339999
  • vans 12y ago
    WOW ! << Do not use direct or indirect recursion. Do not use dynamic memory allocation after task initialization. >> I think they should use COBOL, it's built in :)
    • Jtsummers 12y ago
      Those are standard restrictions for embedded real-time systems, especially if the language itself doesn't offer guarantees on tail-call optimization (like the ML family, Erlang and others do). You have to guarantee the behavior of the program, and recursion (especially unbounded memory usage as in many C implementations) can royally screw things up. You may still have infinite loops because of an error in a for loop's terminating condition, but without dynamic memory and exploding stack usage you'll at least have enough memory left to deal with it when the watchdog timer kicks in.