any news on const/invariant?

[Bill Baxter]

Michel Fortin wrote:
> On 2007-11-26 18:20:18 -0500, Extrawurst <spam at extrawurst.org> said:
> 
>>>> I didn't spend too much looking through the changes, but it looked 
>>>> like D is going to be switching to the C++ style of flagging 'this' 
>>>> as const by putting 'const' at the end of the function signature 
>>>> rather than the beginning.
>>>
>>> At the beginning will still work for function types. The at the end 
>>> option is there for those who are building complex type declarations.
>>
>> honestly i would prefer just one single way of writing things. 
>> allowing multiple ways makes it less simple to understand external 
>> code for beginners. this is one thing i like about java that there 
>> hardly exist multiple ways to formulate the same piece of code.
> 
> I second that: the language should help make code consistent. I don't 
> really care which syntax is kept in the language, but in my opinion 
> Walter should decide on one, not two.
> 
> Allowing both seems like a compromise to make C++ switchers happy by 
> permitting const at the end of a member function (as in C++), but I 
> think it just makes the differences about const even more subtle and 
> thus harder to learn to that group.
> 
> Or is there another rationale I'm missing for having the two syntaxes?

I agree.  I don't get why we need two ways to express it.  What's the 
benefit of writing const out in front?

--bb