[fpc-pascal] Re: Feature proposal: function-based assignment operators

[Jonas Maebe]

On 28 Mar 2013, at 17:50, Benito van der Zander wrote:

>> What's the benefit?
> Same benefit as += to := ... +
> 
> You do not need to rewrite/compute the left side

+= does *not* prevent re-evaluating the left side. It is internally translated to "x:=x+y" and then evaluated like normal. So if "x" contains a function call with side effects, these side effects are still triggered twice.


Jonas
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