exception-handling

This question already has answers here : Closed 7 years ago . Possible Duplicate: What does assert do? assert tests the programmer's assumption during development without writing exception handlers for an exception This is what i got, when i was searching about the assert . Apart from this, people also said, it is alternative of exception handling. Assertion will come into the picture when you don't want to take the time to write the exception handling code. But, i didn't get the working and uses. Anyone explain this example. class AssertExample { public static void main(String[] args) { int x

We use an automated crash reporting tool (namely http://crashrpt.sourceforge.net ) for generating crash reports. So if a piece of unmanaged code fails by accessing a NULL pointer for example, the application crashes, the crash reporting tool activates and we get usable stack trace for diagnosing and grouping issues. The problem is that .NET seems to interfere with crash handling in some cases. One sample is the following: this.Dispatcher.BeginInvoke((ThreadStart)delegate { // Send message to unmanaged control for performing a specific task. User32.SendMessage(...); }, DispatcherPriority.Input)

Platform is Windows 7 SP1. I recently spent some time debugging an issue that was caused because a code was passing an invalid parameter to one of the "safe" CRT functions. As a result my application was aborted right away with no warning or anything -- not even a crash dialog. At first, I tried to figure this out by attaching Windbg to my application. However when the crash happened, by the time the code broke into Windbg pretty much every thread had been killed save for ONE thread on which Windbg had to break into. There was no clue as to what was wrong. So, I attached Visual Studio as a

I have a WPF application that communicates with a WCF service. I'm currently calling my WCF service from my ViewModels (I'm using the MVVM pattern) using the following async based pattern: public async override void MyCommandImplementation() { using (var proxy = new MyProxy()) { var something = await proxy.GetSomethingAsync(); this.MyProperty = something; } } As I'm following the MVVM pattern, I have ICommand public properties that are exposed by my ViewModels, so associated command implementation won't return Task<T> objects as they are like event handlers. So the exception handling is

I am unable to propagate exceptions through dlsym. I use dlsym to load a cythonized python file. I made a minimal working example below so you can try it yourself: I have a pyx file, c_fun.pyx, which I compile to a C file using Cython. Then I'm using dlsym to load in the so file in another program, say use_fun.c++. You can use ./compile.sh to compile the files. On executing ./test, the program crashes with a segmentation fault. #c_fun.pyx: cdef public double _myfunction(double x) except*: a=1/0 # This does not propagate an exception. Comment to make the example work return x**2-x # This works.

I wish to handle Exceptions in a meaningful way in a Swing application. The following is inside an actionPerformed method. The UiUtils#showError displays a JOptionPane with a button that shows/hides the stack trace. ApplicationException is a custom class to translate low level Exceptions to something a user would understand. One issue is that I'm not sure how to handle a NullPointerException that propagates up if a user doesn't select a file in the JFileChooser before this code. The exportData method purposefully checks for null on entry so no file handling is done. Also, it seems that it