stdio line-streaming revisited

[Sean Kelly]

Walter Bright wrote:
> Sean Kelly wrote:
>> Walter Bright wrote:
>>> Andrei Alexandrescu (See Website For Email) wrote:
>>>> As long as it's not in the language definition, you can't count on 
>>>> it. I think this is a language defect anyhow; I am lobbying Walter 
>>>> to define left-to-right order of evaluation in all cases.
>>>
>>> It's problematical to define the order of function argument 
>>> evaluation, because some calling conventions push left-to-right, 
>>> others right-to-left.
>>>
>>> Not impossible, though.
>>
>> It sounds like parameter evaluation order is being confused with 
>> evaluation order in expressions?  Or is Andrei truly suggesting that 
>> function arguments should be evaluated left to right?
> 
> Let's say you have:
> 
>     a.f(b,c);
> 
> 'a' can be semantically a function argument, as in
> 
>     f(a,b,c);
> 
> Now, 'a' must be evaluated before f can be called, but whether a, b or c 
> are evaluated first is not defined.

Okay, right.  This is what I'd expect.  Though I suppose it could indeed 
be somewhat confusing with property syntax above.  Personally though, as 
long as this is well documented, I don't see a real need to change it?


Sean