Strange bug in Release mode

[morando]

I am using VS2012. I have a bug in my code that i don't know how to overcome as it appears in bizarre situation. It works fine in Debug but crashes in Release mode.

I have a class with couple of vectors and some pointers:

class Foo
{
private:    
    Bla*    pBla; 	 
    std::vector<shared_ptr<Node>> vBar1;	
    std::vector<shared_ptr<Node>> vBar2;	 
    std::vector<shared_ptr<Node>> vBar3;	
    //std::vector<shared_ptr<Node>> vBar4;
... more data
public:
...
};

When i introduced one more vector (vBar4) to this class it crashes my app even if don't use it anywhere, if i comment it then everything works.
WTF is going on?

Thank you for your time.

[Athar]

WTF is going on?

Undefined behavior is going on. In particular memory corruption can cause strange problems in unrelated parts of code.

[morando]

Any tips how to debug it in Release mode?

[jlb]

You may want to investigate how and where you actually allocate memory for your pointer.

[Athar]

Any tips how to debug it in Release mode?

You just need to enable debug symbols. In most cases, debugging will still be possible, even with optimizations enabled.

[morando]

"Clean" then "Rebuild" and now it works.