Re: Add and use a Transform data type (issue 344970043 by address@hidden)

[David Kastrup]

Hans Åberg <address@hidden> writes:

>> On 21 Jun 2018, at 00:30, address@hidden wrote:
>
>>   Maybe a function would help:
>> 
>>    Transform make_transform(const Transform *t)
>>      {
>>        return t ? Transform (*t) : Transform ();
>>      }
>> 
>> You could also do it as a constructor, if you prefer its syntax and
>> don't mind implementing yet another one:
>> 
>>    explicit Transform(const Transform *t) ...
>
> One can also use a tag type argument in the constructor:
>   struct make_t {};
>   constexpr make_t make{};

What would that be good for?

-- 
David Kastrup