CODEWITHSUNDEEP
c++cvisual-studio-2010
Engine
Engine

Reputation: 5422

how to get the line where the program crashes

I have a c++ program and I want to display the line number of where the program crashes in the console ! I'm using VS2010! is that even possible? I use opencv , and opencv does it ! any idea?

Upvotes: 3

Views: 3101

Answers (3)

Andriy Tylychko
Andriy Tylychko

Reputation: 16256

Sometimes you cannot use a debugger, e.g. when you cannot reproduce the crash locally. In this case you need to put try/catch on top-level to catch and report all exceptions (on Windows make sure you also catch structured exceptions) and to subscribe to signals to catch and report SEGFAULTs etc.

Then you can log stack trace (not portable and requires debug symbols) or create a mini-dump (not portable).

Upvotes: 1

xmoex
xmoex

Reputation: 2702

I'd suggest using a debugger with reasonable haltpoints and check if those haltpoints are reached. I prefer this one over console debug messages as it doesn't pollute your code.

Upvotes: 2

masoud
masoud

Reputation: 56479

I had a same issue, there was a code and I wasn't able to debug it (it had to run without stopping). I put below code before every suspecting line:

cout << __LINE__ << endl;

After that, when it crashed, I could trap the problem.

But a standard way is using a debugger and put conditional breakpoints. (I'm not sure it helps you)

Upvotes: 5

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