EXC_BAD_ACCESS (SIGBUS) in C++

I am writing an iOS application in C++ using DragonFireSDK. My latest build crashes on my iOS devices with the error EXC_BAD_ACCESS (SIGBUS).
I know that it's an error with non-allocated memory but the issue is that my program has become pretty big and I can't locate where this unassigned variable may be. I know that Cocoa has NSZombie that can be used to get more details from this sort of error.
I'm wonder what I can do, in Windows or Visual Studio, that could help me pinpoint the location of the error?
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