Increment / Decrement Operator Behavior
bearophile
bearophileHUGS at lycos.com
Mon Jun 4 13:44:40 PDT 2012
Bernard Helyer:
> If you find yourself using postfix increment/decrement
> operators in the same function call in multiple arguments, slap
> yourself firmly in the face and refactor that code.
I think this is not acceptable, you can't rely on that, future D
programers will not slap themselves and refactor their code. Some
of the acceptable alternatives are:
1) Make post/pre increments return void. This avoid those
troubles. I think Go language has chosen this. This is my
preferred solution.
2) Turn that code into a syntax error for some other cause.
3) Design the language so post/pre increments give a defined
effect on all D compilers on all CPUs. Walter since lot of time
says this is planned for D. This leads to deterministic programs,
but sometimes they are hard to understand and hard to translate
(port) to other languages any way. Translating code to other
languages is not irrelevant because D must be designed to make it
easy to understand the semantics of the code.
Bye,
bearophile
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