Non-MFC exception handling
Author
I've found a point where an exception is generated in my application on a few people's machines. It seems to be occurring as a function returns rather than in any code which is executed which is odd in itself - any thoughts on that?
Because this is a non-MFC project, CException isn't available to me I think. So other than catch(...), what can I do to find what the exception is?
clarification: If I wrap the offending function call in a try block, followed by catch(...), this catch block is triggered. However this gives me no information about the exception, just that it happened!
Thankyou
[Edited by - d000hg on February 8, 2005 7:09:39 AM]
Maybe the SetUnhandledExceptionFilter API will do the trick for you. Take a look at the Bugslayer and UnderTheHood links in the google results.
Another possibility would be to use the Windows SEH (structured exception handling). It may be a VC++ thingy, and I don't know if it works with gcc or any other compiler.
(wait: there is something weird with this page... try here).
HTH,
(wait: there is something weird with this page... try here).
HTH,
Author
Well I want to use try & catch, but Imust be able to do catch(something) that will catch the exception as CException does? MFC is just using plain c++...
If I wasn't using MFC can I detect an access violation etc using catch(something)?
If I wasn't using MFC can I detect an access violation etc using catch(something)?
You can still use try/catch but they will only catch C++ exceptions (those which are throwed). SEH can catch access violations and a lot of other errors (like divide by 0 and so on).
Reading your post, it seems you are not very clear with C++ exceptions. You don't have to use MFC to be able to use them. You don't have to define an exception object to use them. This (pseudo) code works:
Regards,
Reading your post, it seems you are not very clear with C++ exceptions. You don't have to use MFC to be able to use them. You don't have to define an exception object to use them. This (pseudo) code works:
try { if (cond1) throw 1000; if (cond2) throw "a string"; if (cond3) throw new ComplexObject(1000, "a string");} catch (int e) {}catch (const char *c) {}catch (ComplexObject *obj) {}Regards,
Author
I'm quite happy with c++ exception handling, but if I do
int *pointer=0;try{*pointer=12345;}catch(...){}int *pointer=0;try{*pointer=12345;}catch(CException *E){}
I think you want to look at _set_se_translator(). Be sure to compile with /EHa (asynchronous exception support) or you'll be in a world of hurt.
Author
That seems very useful - thanks.
Although:
Although:
try{int *p=0;*p=12345;}catch(CException *E){...}catch(exception &e){...}catch(...){...}This topic is closed to new replies.
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