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Questions tagged [seh]

Microsoft Structured Exception Handling (SEH) is the native exception handling mechanism for Windows.

Microsoft Structured Exception Handling (SEH) is the native exception handling mechanism for Windows.

177 questions
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__try and __except not working in Release build

In my program i really need to use SEH exception handlers, which catch errors like AccessViolation & etc., but handlers work only in Debug build. I have enabled same option in Release build, but it does not work. How to enable SEH in Release mode…
Loryan55
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Is ARM (not Thumb) supported on WinPhone8 at all?

I'm facing a weird issue, somewhat similar to this. I have a Windows Phone 8 native DLL project, mostly C++ but with an ARM assembly source in it. The source is in ARM mode (i. e. not Thumb). C++ is compiled to Thumb. The app crashes when C++ tries…
Seva Alekseyev
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Template function accepting callable functors with X parameters

I'm writing a hosted C++ program that runs user-written C-code compiled on the fly. It's absolutely vital that certain typical exceptions are caught from the C-code and processed/ignored. To do this, I'm calling the C code from within a structured…
Shaggi
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Exception handler doesn't call destructors when catching SEH exception

class ScopedShit { public: ScopedShit() { cout << "ScopedShit()" << endl; } ~ScopedShit() { cout << "~ScopedShit()" << endl; } }; void foo() { ScopedShit ss; int x = 0; int y = 5 / x; } int main() { …
prgDevelop
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__try not catching exception on HeapFree

I'm trying to catch a HeapFree exception.. On MSDN it says HeapFree has undefined behavior when trying to free an already freed pointer. Well, I tried that on VS2010, and it "throwed" a breakpoint (windows has triggered a breakpoint), then an…
Icebone1000
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Should I use SEH "by default" in C?

When I'm programming C code for Windows, should I "default" to using SEH's __try...__finally blocks, or is it considered bad practice to do so unnecessarily? In other words, which one below (for example) is considered better practice, and why? HDC…
user541686
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Emiting code with Exception support

I need to generate code at runtime that do the following: auto v_cleanup = std::shared_ptr(nullptr, [](void *){ cleanup(); }); //... do_some_danger_thing(); //... or C equivalent: __try { //... do_some_danger_thing(); //... }…
Earth Engine
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Does Vector Exception Handlers handle all exceptions in different threads including C++ exceptions?

Continued from my previous question: How to handle SEH exception on a global level Does Vector Exception Handlers catch all exceptions including C++ exceptions? Microsoft's documentation says it is an extension of SEH handlers but I read somewhere…
Batmon
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Is there a way to leave the exception unhandled after invoking the VectorExceptionHandler the first time?

I want to check if a SEH occurred and if it's of a certain type I don't want to handle it and let the program crash, as it is important for having it generate a dump file. One issue is that my program has a VectorExceptionHandler in main but there…
Batmon
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Why does SEH in main jump back to same Vector Exception Handler?

I am writing code to test C++ and SEH exceptions. However, on running my code below, the exception again calls the same handler even though I have specified the index to be 0 i.e. the last handler. In my opinion, the ideal handling should be: SEH…
Batmon
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How to catch SEH thrown from ntdll.dll's TppRaiseInvalidParameter?

I am using MSVC2019 and COM and compiling using /EHa getting a SEH from ntdll.dll from TppRaiseInvalidParameter that I am trying to catch but seem unable to. I know exactly why the exception is thrown, but that is not the issue here. I tried using…
Radu C
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How to set an exception using masm64?

How can i access the exception chain (SEH) using masm64? Using masm32, I get the first exception looking into fs:[0] But when I checked in Windbg if fs:[0] still pointed at the first exception in x64, I figured that it wasn't. I'd like to set an…
ginko
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Does Clang support SEH?

Edit: I don't mean SEH I mean asynchronous exception handling. As commented SEH is supported by __try, __except. The following example requires asynchronous exception handling (-EHa) which appears to be not available. I tried the structured…
maybourne
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Is Visual C++ SEH available on other OS?

I learned about Visual C++ Structured Exception Handling (SEH) recently. I am considering implementing it, but my code is supposed to be as cross platform as possible. In the future, I'm thinking of porting ny code to Linux, MAC, Android, IOS and…
Christopher Barrios Agosto
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C/C++ SEH Example build failure

I am complete unfamiliar with c/c++. I need to compile a small program to do some analysis. This is the program #include #include #include //#include #include int ExceptionHandler(void); int main(int…
Madhur Ahuja
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