I've got a function which takes two strings and should return them as a ubyte[] with additional zero bytes in between and around. This works:

>    ubyte[] convert_string_pair(string first, string second)
>    {
>        auto b = new ubyte[](0);
>        b ~= 0x00 ~ first ~ 0x00 ~ second ~ 0x00;
>        return b;
>    }

But I think it would be more elegant to do it in a single return statement, but unfortunately this does not work:

>    ubyte[] convert_string_pair(string first, string second)
>    {
>        return 0x00 ~ first ~ 0x00 ~ second ~ 0x00;
>    }

The reason is, that this expression creates a string and not a ubyte[]...

On Wednesday, 14 August 2019 at 15:11:44 UTC, berni wrote:
> The reason is, that this expression creates a string and not a ubyte[]...

it should be ok to just cast it in this case.

On Wed, Aug 14, 2019 at 03:11:44PM +0000, berni via Digitalmars-d-learn wrote: [...]
> but unfortunately this does not work:
> 
> >    ubyte[] convert_string_pair(string first, string second)
> >    {
> >        return 0x00 ~ first ~ 0x00 ~ second ~ 0x00;
> >    }
> 
> The reason is, that this expression creates a string and not a ubyte[]...

Try:

   ubyte[] convert_string_pair(string first, string second)
   {
       return cast(ubyte[])(0x00 ~ first ~ 0x00 ~ second ~ 0x00);
   }


T

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