I guess the feature you are searching for is called FirstChanceException and can be accessed via the AppDomain.FirstChanceException Event Essentially this event provides a hook to get information about any (managed) exception getting thrown in the AppDomain. You can not handle the Exception this way! It is only a sort of notification Update: regarding your … Read more
I would suggest checking out ONCLEANUP objects. They allow you to automatically run code on exit from a function (more specifically, when the ONCLEANUP object is cleared from memory). Loren from The MathWorks discusses this in one of her blog posts here. If you place your above code in a function, it might look something … Read more
I would recommend you never throw NullPointerException by yourself. The main reason not to do this, as Thorbjørn Ravn Andersen says in a comment below, is that you don’t wan’t to mix ‘real, bad NPEs’ with NPEs thrown intentionally. So, until you’re confident that you’re able to recognize ‘valid’ NPE, I’d recommend to use IllegalArgumentException … Read more
The op is asking about the C# equivalent of Java’s throws clause – not the throw keyword. This is used in method signatures in Java to indicate a checked exception can be thrown. In C#, there is no direct equivalent of a Java checked exception. C# has no equivalent method signature clause. // Java – … Read more
There is one situation I find it useful: TDD. I write my tests, then I create stubs so the tests compile. Those stubs do nothing but throw new NotImplementedException();. This way the tests will fail by default, no matter what. If I used some dummy return value, it might generate false positives. Now that all … Read more
Your question makes an assertion, that “Writing exception-safe code is very hard”. I will answer your questions first, and then, answer the hidden question behind them. Answering questions Do you really write exception safe code? Of course, I do. This is the reason Java lost a lot of its appeal to me as a C++ … Read more
First of all, the original reason for this was largely political – the people who added DWARF-based unwinding (.eh_frame) wanted it to be a feature that’s always there so it could be used for implementing all kinds of stuff other than just C++ exceptions, including: backtrace() __attribute__((__cleanup__(f))) __builtin_return_address(n), for n>0 pthread_cleanup_push, implemented in terms of … Read more
While debugging, Go to Debug -> Windows -> Call Stack
The difference between ‘throw new Error’ and ‘throw someObject’ in javascript is that throw new Error wraps the error passed to it in the following format − { name: ‘Error’, message: ‘String you pass in the constructor’ } The throw someObject will throw the object as is and will not allow any further code execution … Read more
When a throw expression is evaluated, an exception object is initialized from the value of the expression. The exception object which is thrown gets its type from the static type of the throw expression ignoring any const and volatile qualifiers. For class types this means that copy-initialization is performed. The exception object’s scope is outside … Read more