What's this? (Was: DMD 1.028 and 2.012 releases)

[Bill Baxter]

Aarti_pl wrote:
> Walter Bright pisze:
>> Aarti_pl wrote:
>>> Did you notice this example in docs?
>>> (http://www.digitalmars.com/d/2.0/struct.html#AssignOverload)
>>>
>>>
>>> S* opAssign(S s)
>>> {   S tmp <== *this; // bitcopy *this into tmp
>>>     *this <== s;     // bitcopy s into *this
>>>     tmp.~this();     // call destructor on tmp
>>>     return this;
>>> }
>>>
>>> It seems to be something new in D 2.012. Does it work? How?
>>
>> It's pseudo-code. There is no <== operator nor .~this() in D. I 
>> probably made a mistake in presenting it this way, but I was trying to 
>> show what was going on.
>>
>> The comments explain what is happening.
> 
> Yes, such a pseudo-code should probably be avoided.
> 
> I thought that there was silently introduced special copy operator.
> ... the one that would disambiguate ref copying from object copying for 
> example :-)

Ohh that's not real code?  That is confusing.  Just put the pseudocode 
into comments then it won't be as misleading.

--bb