exception-handling

问题 i have a vb6 apps which will call the mencoder.exe which is part of the mplayer to convert some files into flv format. i'm getting this weird unhandled exception problem from mencoder whenever i try to convert this one opendivx file. At the moment, i'm unclear of whether is this codec is the culprit behind this. Either way i have try to modify the command line and even downloaded the latest available version for mencoder. so the conversion works fine and the only problem is that the mencoder

问题 I want to run a basic data validation sample in WPF using ValidatesOnException , but its simply not working, and as soon as my viewmodel throws ValidationException , my program crashes saying, ValidationException was unhandled by user code . My View Model is public class MainViewModel : INotifyPropertyChanged { //INotifyPropertyChaned implementation ////////////////////////////////////// private string stringValue; public string StringValue { get { return stringValue; } set { if (value.Length

问题 I have created a custom Exception that has data pertaining to our application. I want to ensure this data gets logged when an exception is thrown and logged to the event log. I have tried creating a custom TextFormatter which is being called but am not sure how to access the current exception so I can add our custom information to the log entry. There is something I am not understanding and would appreciate any help around adding custom tokens (and data) to Enterprise Library 5.0

问题 I have a question about the exceptions on the Spring security level. I user the SM_USER header for authorization and for the validation the request goes through the DelegateRequestMatchingFilter (it helps to understand whether the SM_USER is needed). The problem is that if there is no SM_USER-header at all the line super.doFilter(...) throws a PreAuthenticatedCredentialsNotFoundException which cannot be processed with the standard ExceptionResolver for controllers and that's why looks strange

问题 I don't want my program to crash, so i enabled C++ Exception with SEH. So that, if there's some errors i.e. NULL pointer access happens, my program can catch it with catch(...). I want to known: 1. Is there any drawback of enable C++ exception with SEH? 2. How can i know exception details when it is catched by catch(...)? 回答1: As far as I know, there are no performance drawbacks, because I'm pretty sure C++ exceptions are implemented via SEH anyway. All you're doing is enabling the extension

问题 I have created a class BaseActivity extends AppCompatActivity from which all my Activites in an Android App are inheriting. In this class I intended to catch all unhandled exceptions, so I can write them to a local SQLite database for later inspection / sending to remote server. Below I attach entire class code: public class BaseActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Thread

问题 I have simple code that executes and in case it crashes I want to catch the exception so the app does not crash. @try { x = [self try_doMyWork:Param]; } @catch (NSException* e) { NSLog(@"Exception"); } While this code works in debug and catches the exception (which is a simple index beyond end of array) it crashes in distributed apps on iPhones. Why is this and how can I ensure that it also works on distributed apps? 回答1: Uncaught application-level exceptions are only one cause of crashes.

问题 I have stumbled upon a problem when calling a nested Async which happens to be null. An exception is raised but it can't be catched with any of the normal exception handling methods Async workflows provide. The following is a simple test which reproduces the problem: [<Test>] let ``Nested async is null with try-with``() = let g(): Async<unit> = Unchecked.defaultof<Async<unit>> let f = async { try do! g() with e -> printf "%A" e } f |> Async.RunSynchronously |> ignore which results in the

问题 I have started using C++ 11 and in particular using unique_ptr liberally to make code exception-safe and ownership more readable. This has generally worked well until I wanted to throw a unique_ptr. I have error code (thrown many places, caught in a single place) that creates complex state. Since the ownership of that dynamically allocated memory logically is being transferred from the thrower to the catcher, unique_ptr seemed like the appropriate type to indicate that and make it clear that

问题 I am trying to implement a timeout exception handler if a function call is taking too long. EDIT : In fact, I am writing a Python script using subprocess, which calls an old C++ program with arguments. I know that the program hangs from time to time, not returning anything. That's why I am trying to put a time limit and to move on to next call with different argument and etc. I've been searching and trying to implement it, but it doesn't quite work, so I wish to get some help. What I have so