Is there a way to implicitly convert *FROM* a base type? I have an implicit conversion to a base type (float[2]) in a struct, but now I'd like to be able to implicitly convert from a base type (in this case a float[2]) to a struct.

Is this even allowed? Is it incorrect or unsafe? I'm still pretty new so there could be a major reason to not want to do this. I also did a lot of searching of the site, I hope I didn't miss something major, but I might have.

example :

struct Coord {...} // X,Y wrapper-like type, implicitly converts to/from float

void DoCoord(Coordinate c) {... do stuff...}

void main()
{
  DoCoord ([0.0f, 5.0f]); // Is it possible to set this up?
}

I tried something similar to (check first answer):
http://stackoverflow.com/questions/121162/what-does-the-explicit-keyword-in-c-mean

but I can't get it to work. But then again... I'm just starting with D.

It seems not to be supported:
http://forum.dlang.org/thread/teddgvbtmrxumffrhojh@forum.dlang.org#post-qxqdksfoamarwjtpjcfq:40forum.dlang.org

On Saturday, 1 February 2014 at 20:26:27 UTC, alexhairyman wrote:
> Is there a way to implicitly convert *FROM* a base type? I have an implicit conversion to a base type (float[2]) in a struct, but now I'd like to be able to implicitly convert from a base type (in this case a float[2]) to a struct.
>
> Is this even allowed? Is it incorrect or unsafe? I'm still pretty new so there could be a major reason to not want to do this. I also did a lot of searching of the site, I hope I didn't miss something major, but I might have.
>
> example :
>
> struct Coord {...} // X,Y wrapper-like type, implicitly converts to/from float
>
> void DoCoord(Coordinate c) {... do stuff...}
>
> void main()
> {
>   DoCoord ([0.0f, 5.0f]); // Is it possible to set this up?
> }


D currencly has no implicit casting operator overloading. It has been proposed before in http://wiki.dlang.org/DIP52 but i am not sure what the state of that is as of now.

On Sat, 01 Feb 2014 21:18:12 +0000, Martijn Pot wrote:

> I tried something similar to (check first answer): http://stackoverflow.com/questions/121162/what-does-the-explicit-
keyword-in-c-mean
> 
> but I can't get it to work. But then again... I'm just starting with D.
> 
> It seems not to be supported: http://forum.dlang.org/thread/teddgvbtmrxumffrhojh@forum.dlang.org#post-
qxqdksfoamarwjtpjcfq:40forum.dlang.org

Thanks, a little bit more work, but thanks for the link

On Sat, 01 Feb 2014 21:23:07 +0000, TheFlyingFiddle wrote:

> On Saturday, 1 February 2014 at 20:26:27 UTC, alexhairyman wrote:
>> Is there a way to implicitly convert *FROM* a base type? I have an implicit conversion to a base type (float[2]) in a struct, but now I'd like to be able to implicitly convert from a base type (in this case a float[2]) to a struct.
>>
>> Is this even allowed? Is it incorrect or unsafe? I'm still pretty new so there could be a major reason to not want to do this. I also did a lot of searching of the site, I hope I didn't miss something major, but I might have.
>>
>> example :
>>
>> struct Coord {...} // X,Y wrapper-like type, implicitly converts to/from float
>>
>> void DoCoord(Coordinate c) {... do stuff...}
>>
>> void main()
>> {
>>   DoCoord ([0.0f, 5.0f]); // Is it possible to set this up?
>> }
> 
> 
> D currencly has no implicit casting operator overloading. It has been proposed before in http://wiki.dlang.org/DIP52 but i am not sure what the state of that is as of now.

Hmmm, interesting