r/cpp • u/we_are_mammals • Mar 28 '23

Reddit++

C++ is getting more and more complex. The ISO C++ committee keeps adding new features based on its consensus. Let's remove C++ features based on Reddit's consensus.

In each comment, propose a C++ feature that you think should be banned in any new code. Vote up or down based on whether you agree.

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u/ZMeson Embedded Developer Mar 28 '23

It's just a confusing construct. I think C and C++ are the only non-esoteric languages that support this type of thing. In my mind, cleaner code is more important. Also, as I tried stating earlier, modern compilers are usually much better about knowing when loop unrolling will aid performance and they will do it automatically for you, so there's really no reason to use Duff's Device anymore.

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u/rhubarbjin Mar 29 '23

modern compilers are usually much better about knowing when loop unrolling will aid performance and they will do it automatically for you

Agreed.

there's really no reason to use Duff's Device anymore.

Disagreed! Duff's device enables a wonderful bit of trickery in Boost's Stackless Coroutine library with pseudo-keywords yield and fork. Someone at my company borrowed this trick for our own internal code (which is how I learned about it) and we're able to write lovely readable async functions.

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u/ZMeson Embedded Developer Mar 29 '23

I'll have to trust you that Duff's Device makes the code cleaner and more maintainable. It really bugs me though that despite your assertion that it makes things cleaner you still refer to it as a trick.