bug in assigning to dynamic array element

[Iain Buclaw via Digitalmars-d]

On 1 November 2014 11:56, ketmar via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
> On Sat, 01 Nov 2014 11:31:51 +0000
> anonymous via Digitalmars-d <digitalmars-d at puremagic.com> wrote:
>
>> I don't know how D defines this, and I couldn't find anything but
>> a forum discussion [1] (which I didn't read all of). But unless
>> it's explicitly stated that the right-hand side is evaluated
>> first, there is no bug.
> there is. compiler generates code that modifies random memory
> addresses. this is absolutely unacceptable. and this is just illogical
> if we want dynamic arrays to look and work like "normal" arrays.
> besides, it's easily fixable without any changes in evaluation order.

I'm not *entire* sure on that. :)

If the evaluation of LHS[IDX] has a side effect, you've broken LTR.

Think:
Left => Index => Right

vs

Index => Right => Left