[Mono-bugs] [Bug 475354] Null values for nullable structs are reported as not equal to each other

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=475354

User dmitchell at logos.com added comment
https://bugzilla.novell.com/show_bug.cgi?id=475354#c2


David Mitchell <dmitchell at logos.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |




--- Comment #2 from David Mitchell <dmitchell at logos.com>  2009-02-25 10:50:27 MST ---
It seems that this hasn't been completely fixed, as evidenced by this log from
the C# shell:

---
Mono C# Shell, type "help;" for help

Enter statements below.
csharp> DateTime? a = default(DateTime?);
csharp> DateTime? b = default(DateTime?);
csharp> a == b;
false
csharp> default(DateTime?) == default(DateTime?);
true
csharp> a == default(DateTime?);
true
csharp> default(DateTime?) == b;
true
---

Here we see that comparing default(DateTime?) to itself or to an object that
has been set to default(DateTime?) yields the expected value, but if we assign
two DateTime? objects to default(DateTime?) and compare them to each other, we
get an incorrect result.

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