C# How can false == true ? See Picture

Question

I just ran into one of the most mind boggling errors ever. false == true What information would you guys need to confirm/debug this behavior? I've never seen anything like it.

• VS2008 sp1
• Debug Mode | Any Cpu
• IIS 7.5

Edit: I did a clean->rebuild and still the same.

Here's the assembly and registers. I don't know how to read this, but maybe it could help someone else.

Answer 1

I suppose your PDB files are not in phase and you have differences in what's really executed and what Visual Studio sees as a line number. Try rebuilding. We all know that it is impossible to have true = false, or the world as we know it may change :-)

Answer 2

Does it actually throw the error? The debugger can often highlight the wrong lines if you feed it the wrong pdb, so this could be a false lead. It is also trivial to reproduce using the "immediate" pane to change the value after the test.

If result was a field or a captured variable, it could also be set by external code (perhaps on another thread).

If result wasn't a bool but your own custom type, you could just override ==, or provide a custom true/false operator.