[Issue 6949] no warning or error if unsigned variable is compared to

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=6949

--- Comment #19 from bearophile_hugs at eml.cc ---
(In reply to Lionello Lunesu from comment #18)
> *** Issue 8874 has been marked as a duplicate of this issue. ***

Issue 8874 shows an extensive example of why this warning is quite important.

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