Explicit default constructor for structs

[Timon Gehr]

On 04/09/2014 08:53 PM, Benjamin Thaut wrote:
> Am 09.04.2014 20:33, schrieb Timon Gehr:
>> On 04/09/2014 04:59 PM, Benjamin Thaut wrote:
>
>> Why not just:
>>
>> struct Foo{
>>      this(){
>>          // do stuff here
>>      }
>> }
>>
>> void main(){
>>      Foo foo1; // error, no init value
>>      auto foo2=Foo(); // ok
>> }
>
> Because then the user might think, that the default constructor gets
> called implicitly by the compiler.

This would be pointed out by the compiler. (i.e. it is an error instead 
of an implicit call.)

> Just like in C++. But as that is not
> the case the syntax should be different to indicate that a struct might
> still be instaniated just using T.init.
>
> Kind Regards
> Benjamin Thaut

What would be an use case for a bypassable default constructor?