[Issue 24018] array concatenation doesn't work with disabled default construction

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=24018

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

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--- Comment #3 from Dlang Bot <dlang-bot at dlang.rocks> ---
@FeepingCreature created dlang/dmd pull request #15352 "CHANGE: Make
`array.length = n` `@system` if default construction is disabled on the array
type (fixes 24018)" fixing this issue:

- Fix issue 24018: make `array.length = n` `@system` if default construction is
disabled on the array type.
  This is needed as there is otherwise no good way to resize an array of
non-constructable elements in user code at all.

https://github.com/dlang/dmd/pull/15352

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