C#

A stackalloc expression allocates a block of memory on the stack and is cleaned up only when the controller exits the method. Placing a stackalloc expression inside a loop continuously allocates memory and does not let it get discarded despite the controller exiting the loop's scope. It is therefore recommended that you rethink your approach.

The default case in a switch is executed when none of the provided cases match. An empty default case without a user comment is redundant. Either add a user comment to indicate to the reader and the analyzer that all the possible cases have been covered, or, consider throwing a NotImplementedException to indicate that some cases are yet to be handled.

Having more than 1 public class per namespace increases the complexity and affects the overall code readability and navigation. It is therefore recommended that you have a single public class per namespace.

Handle returned by DangerousGetHandle can be invalidated, become stale, or be recycled when APIs such as SetHandleAsInvalid is invoked. This can lead to potential security vulnerabilities within your application. It is therefore recommended that you use this method only if you know what you're doing and absolutely require it.

The [Ignore] attribute is used to ignore a specific test's final result. This is usually done in situations where the test is failing, either due to the fault in the test itself, or that the logic that is being tested is at fault and is not behaving as per requirement. Because this indicates a potential flaw within your application, it is recommended that you fix it as soon as possible.