Re: [boost] [type_traits] Tests for implicit convertibility?

...

So... have we backed ourselves into a corner or do we still have a way to test for implicit-constructibilty that doesn't also require copy-constructibility on the target type?

By using existing traits (no, I don't think we need a new one)? How about `is_constructible` or `is_constructible`? Whether that's viable for you depends on your particular use case...

Thanks, that seems to get it! John.