C#•2y ago

✅ Disjunctive patterns negation

Hey there.

I was wondering why my disjunctive is not working as intended:

authUser.Level
> Internal
authUser.Level is UserLevel.Administrator
> false
authUser.Level is UserLevel.Internal
> true
authUser.Level is not UserLevel.Administrator or UserLevel.Internal
> true

authUser.Level
> Internal
authUser.Level is UserLevel.Administrator
> false
authUser.Level is UserLevel.Internal
> true
authUser.Level is not UserLevel.Administrator or UserLevel.Internal
> true

authUser.Level
> Internal
authUser.Level is UserLevel.Administrator
> false
authUser.Level is UserLevel.Internal
> true
authUser.Level is not UserLevel.Administrator or UserLevel.Internal
> true

authUser.Level
> Internal
authUser.Level is UserLevel.Administrator
> false
authUser.Level is UserLevel.Internal
> true
authUser.Level is not UserLevel.Administrator or UserLevel.Internal
> true

The last expression result doesn't make sense for me, because I'm checking if

authUser.Level

authUser.Level

authUser.Level

authUser.Level is not

Administrator

Administrator

Administrator

Administrator or

Internal

Internal

Internal

Internal, and it actually is

Internal

Internal

Internal

Internal as shown in the first expression, so the result should be

false

false

.

What i'm doing wrong?

Keswiik•4/15/24, 6:19 PM

probably need to use parenthesis around your oror for the notnot to function as expected

CEO da CloudFlareOP•4/15/24, 6:20 PM

https://dotnetfiddle.net/CG4qNG

working example

C# Online Compiler | .NET Fiddle

Test your C# code online with .NET Fiddle code editor.

KKeswiik probably need to use parenthesis around your `or` for the `not` to function as e...

CEO da CloudFlareOP•4/15/24, 6:20 PM

but why putting an parenthesis on it? does (UserLevel.Administrator or UserLevel.Internal)(UserLevel.Administrator or UserLevel.Internal) produces an enum with equality to both values or am i missing something else?

CCEO da CloudFlare but why putting an parenthesis on it? does `(UserLevel.Administrator or UserLeve...

Keswiik•4/15/24, 6:22 PM

Because your example shows that it is clearly matching against not UserLevel.Administratornot UserLevel.Administrator and UserLevel.InternalUserLevel.Internal

KKeswiik Because your example shows that it is clearly matching against `not UserLevel.Ad...

CEO da CloudFlareOP•4/15/24, 6:23 PM

so the ideal, without the parenthesis, would be authUser.Level is not UserLevel.Internal and not UserLevel.AdministratorauthUser.Level is not UserLevel.Internal and not UserLevel.Administrator?

Keswiik•4/15/24, 6:24 PM

correct

CEO da CloudFlareOP•4/15/24, 6:25 PM

pretty confusing

CEO da CloudFlareOP•4/15/24, 6:25 PM

but that's it, thank you

Keswiik•4/15/24, 6:25 PM

:PepoSalute: