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Catching system exceptions using C++ exception handling

Is that posible to catch system exceptions like "access violation" by using C++ exception handling? In that case what will be the thrown object that I can use into the catch() statement? I don't want to use the catch(...) because I need more information about the exception.

Thanks

jhance

It depends. What operating system are you using?

jkr

>>It depends.

Actually, there are just 2 ways - SEH (Win32) or signals (all POSIX).

So, in code

(SEH)
__try {

// code here

} __except ( EXCEPTION_ACCESS_VIOLATION == GetExceptionCode()) {

throw new XcpMyAccVio ();
}

(POSIX)
void my_sigsegv_handler ( int) {

throw new XcpMyAccVio ();
}

signal ( SIGSEGV, my_sigsegv_handler);

lucand

ASKER

I use WindowsNT,2000

I allready tryed signals and _set_se_translator() but not working into a multithreading program(any sugestions?).

SEH is not specifically designed for C++ and I get the following compilation error: "Cannot use __try in functions that require object unwinding"

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jkr

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lucand

ASKER

SetUnhandledExceptionFilter() is working with multithreading.

Thanks jkr!

jhance

Hmmm, like I said originally, "It depends...."

The accepted solution is NOT C++ but rather a Windows-ism.

jkr

Well, you could use the 'signal()' approach on Win32 also...

lucand

ASKER

Jhance you are right, that is not a pure C++ solution but it's working fine in Windows.

signal() is not working if the exception is into a child thread or if signal() is called from a DLL

Thanks