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> This is another symptom. Perhaps it's excusable if there were preexisting libraries/codebase. Uh, what would you use? As far as I know, the choices are: Asse
by javert 11y ago
> This is another symptom. Perhaps it's excusable if there were preexisting libraries/codebase.
Uh, what would you use? As far as I know, the choices are: Assembler, Ada, and C. We're talking about avionics code, here.
C++ is not going to help you in this case. Java will be too slow/unpredictable. Real-Time Java is kind of sketch in my opinion (I could be wrong there). Most everything else is totally out.
Actually I'd probably choose Ada... but there are reasons the industry switched away from Ada.
- jonnybgood 11y agoWhen you say Java I'm assuming you're refering to a JVM? Now what JVM are you refering to?
- stcredzero 11y agoAs far as I know, the choices are: Assembler, Ada, and C. We're talking about avionics code, here. In that case, "group" may refer to the avionics software industry as a whole.
- barsonme 11y agoWhy did the industry switch away from Ada? I thought they preferred Ada because it was such a 'safe' language?
- javert 11y agoBecause Ada programmers were too expensive (i.e., there weren't that many of them). At least, that's what I remember hearing---can't really vouch for it and I'd be happy to see someone else weigh in. Also, my understanding was that Ada was basically forced on the defense industry by the Pentagon, and then there was eventually a backlash, and they dropped it. It may have had more success if it had been adopted voluntarily all along. In fact, it may yet have a resurgence. I know there is at least one serious Ada vendor out there still.
- barsonme 11y agoAhh, makes sense. Thank you.
- stcredzero 11y agoAlso, my understanding was that Ada was basically forced on the defense industry by the Pentagon, and then there was eventually a backlash, and they dropped it. So they went to C? There's some irrational component in there somewhere. What about Swift? Reference counting has good properties for real time applications. The toolchain is excellent for implementing verification tools. It has fairly high performance, combined with a very large and growing developer base. If someone put together a toolchain for Swift that covered the most useful 20% of features provided by Ada in that context, then such a thing could take over avionics programming.
- azth 11y ago> Java will be too slow/unpredictable. Real-Time Java is kind of sketch in my opinion (I could be wrong there). * http://en.wikipedia.org/wiki/Real_time_Java http://en.wikipedia.org/wiki/Real_time_Java * http://www.rtsj.org/ http://www.rtsj.org/
- javert 11y agoI'm already familiar with those (which is why I mentioned it). Maybe you are just linking it for other people, in which case, thanks.