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This compiles without error or warning, how is this possible?
if (DateTime.Now == null) { }
EDIT:
It’s getting even better:
If I do the same with Decimal, int or a user defined struct, I get a compiler error.
What is the difference?
Why can TimeSpan and Guid Structs be compared to null?
Good explanation in the answer here
Several code-analysis tools (like Resharper) will flag it as “always false” and subsequent code as unreachable.