dmd 2.063 beta 5

[Steven Schveighoffer]

On Thu, 23 May 2013 10:16:13 -0400, Iain Buclaw <ibuclaw at ubuntu.com> wrote:

> On 23 May 2013 14:52, Steven Schveighoffer <schveiguy at yahoo.com> wrote:

>> Adding an initializer simply changes the default value from 0 to  
>> whatever
>> you want.  It's quite consistent IMO.
>>
>
> Don't think it makes sense in non-POD structs...
>
> Haven't tested, but is this an error?
>
> struct S
> {
>     const int;
>
>     this (int x)
>     {
>         this.x = x;    // here
>     }
> }
>
> S(5);

Well, since you didn't name the member, it didn't compile right off :)

But after I fixed that, it does compile, both on 2.061 and the beta.

However, there is definitely a bug somewhere, this compiles:

struct S
{
     const int x;
     int y;

     this (int x)
     {
         y = this.x;
         writeln(this.y);
         this.x = x;
         writeln(this.x);
         this.x = 0;
         writeln(this.x);
     }
}

outputs:
0
5
0

Seems like const qualifier for members is simply ignored inside the ctor,  
it should only be ignored until it is set, or until it is used.

-Steve