If I have a class like this:

class Class (T = int) {}

Then why can't I use it like this:

auto c = new C;

I have to do this:

auto c = new C!();

Jacob Carlborg Wrote:

> If I have a class like this:
> 
> class Class (T = int) {}
> 
> Then why can't I use it like this:
> 
> auto c = new C;
> 
> I have to do this:
> 
> auto c = new C!();

I think it is so the parser knows how to make the difference between the template symbol and an instance symbol.

Jeremie Pelletier wrote:
> Jacob Carlborg Wrote:
> 
>> If I have a class like this:
>>
>> class Class (T = int) {}
>>
>> Then why can't I use it like this:
>>
>> auto c = new C;
>>
>> I have to do this:
>>
>> auto c = new C!();
> 
> I think it is so the parser knows how to make the difference between the template symbol and an instance symbol.
> 

Can you do anything with a template except instantiate it?

-Lars

Lars T. Kyllingstad wrote:
> Can you do anything with a template except instantiate it?
> 
> -Lars

Pass it to another template as an alias argument.

  -- Daniel

On Wed, 20 May 2009 15:01:44 +1200, Jeremie Pelletier <jeremiep@gmail.com> wrote:


> I think it is so the parser knows how to make the difference between the template symbol and an instance symbol.
>


Can you explain a bit more on this? function templates dont require this by the way and I didn't think a template could ever be 'newed'

Tim Matthews Wrote:

> On Wed, 20 May 2009 15:01:44 +1200, Jeremie Pelletier <jeremiep@gmail.com> wrote:
> 
> 
> > I think it is so the parser knows how to make the difference between the template symbol and an instance symbol.
> >
> 
> 
> Can you explain a bit more on this? function templates dont require this by the way and I didn't think a template could ever be 'newed'

Oh yeah you are right, it has already been filed as a bug.