DMD 2.000 alpha release

[Pablo Ripolles]

Walter Bright Wrote:

> Johan Granberg wrote:
> > I don't think invariant here is such a great idea, consider the following
> > function.
> > 
> > void foo(string s){}
> > 
> > if string is const this can be called with both char[] and const(char)[] (if
> > not please correct me) but if my understanding is correct char[] would not
> > work if string is invariant. This will lead to an unessesary amount of
> > cast(invariant) when calling functions on local strings (as functions that
> > create strings will have to modify the when they are being built).
> 
> That's essentially my argument against it, too. The other side is that 
> treating strings as if they are value types is common and effective in 
> other languages. (For example, strings in Perl are invariant.)

And in Python too!