[Issue 22901] Can't construct inout SumType

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22901

Dlang Bot <dlang-bot at dlang.rocks> changed:

           What    |Removed                     |Added
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--- Comment #1 from Dlang Bot <dlang-bot at dlang.rocks> ---
@pbackus created dlang/phobos pull request #8413 "Fix issue 22901 - Can't
construct inout SumType" fixing this issue:

- Fix issue 22901 - Can't construct inout SumType

  The template constraint is needed to ensure that the inout constructor
  overload is only considered when it is an exact match, without qualifier
  conversions.

  Without the constraint, a constructor call such as

      const(SumType!(int[]))([1, 2, 3])

  ...would be ambiguous, since it would match both the const constructor
  overload and the inout constructor overload at the "match with qualifier
  conversion" level.

https://github.com/dlang/phobos/pull/8413

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