http://d.puremagic.com/issues/show_bug.cgi?id=5467
Robert Clipsham <rob...@octarineparrot.com> changed:
What |Removed |Added
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CC| |rob...@octarineparrot.com
--- Comment #4 from Robert Clipsham <rob...@octarineparrot.com> 2012-01-02
00:15:40 GMT ---
(In reply to comment #0)
> 1. Something that's just like another type yet "parallel" with it. This is
> good
> for abstractions that encode different units of measurement that aren't
> supposed to be mixed.
>
> ParallelTypedef!double Miles;
>
> Such a type should accept explicit initialization from a regular double:
>
> auto dist = Miles(3.2);
>
> However it shouldn't accept initialization from another parallel typedef:
>
> ParallelTypedef!double Kms;
> auto dist1 = Kms(4);
> auto dist2 = Miles(dist1); // no
<bikeshed>
This needs a better name, parallel is transitive, so Miles(dist1) should work
(if there are 3 things, A, B and C, A is parallel to B and B is parallel to C,
then A is parallel to C).
</bikeshed>
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