crash with vectors in Release

[VC Maniac]

my application crashes while I push_back a value of type POSITION. I checked the call stack. The parameter to the insert function(push_back calls insert) was something else other than POSITION type. How? What could be the problem? Please help!!

[_AnsHUMAN_]

Can you post some code? Its hard to dig in to unseen BTW did you read Survive The Release Version[^]

You need to google first, if you have "It's urgent please" mentioned in your question. ;-)_AnShUmAn_

[VC Maniac]

This code is used for holding the text selection made by the user. CCursorPos is used for holding the cursor position.

class CCursorPos
{
public:

CCursorPos()
{
	invalidate();
}

CCursorPos(const CCursorPos& pos)
{
	\*this = pos;
}

BOOL isValid() const
{
	return (m\_posItem!=NULL && m\_textPos.x > -1 && m\_textPos.y > -1);
}

CCursorPos& operator=(const CCursorPos& pos)
{
	ASSERT(pos.isValid());
	setCursor(pos.getItem(),pos.getTextPoint());
	return \*this;
}

BOOL operator==(const CCursorPos& pos) const
{
	ASSERT(isValid());
	ASSERT(pos.isValid());

	return (getItem() == pos.getItem() && 
		getTextPoint() == pos.getTextPoint());
}

BOOL operator!=(const CCursorPos& pos) const
{
	return !(\*this == pos);
}

POSITION getItem() const
{
	ASSERT(isValid());
	return m\_posItem;
}

const CPoint& getTextPoint() const
{
	ASSERT(isValid());
	return m\_textPos;
}

void invalidate()
{
	m\_textPos.x = m\_textPos.y = -1;
	m\_posItem = NULL;
}

void setCursor(const POSITION& pos, const CPoint& ptText)
{
	m\_textPos = ptText;
	m\_posItem = pos;
	ASSERT(isValid());
}

protected:

CPoint m\_textPos;		// in view coordinates
POSITION m\_posItem;

};

........

class COutlineTextView
{
.....
CCursorPos m_selStart, m_selEnd;
std::vector<POSITION> m_selection;

....
};

void COutlineTextView::prepareSelBounds()
{
if (m_selection.size() > 0){
m_selection.clear();
}

   .....

POSITION pos = m\_selStart.getItem();
while(pos != NULL && pos != m\_selEnd.getItem())
{
	m\_selection.push\_back(pos);                 //CRASH HERE  !!!!!!
	pos = getOutline()->getNext(pos);
}

ASSERT(pos);
m\_selection.push\_back(m\_selEnd.getItem());
   ...

}

The call stack: > Desktop.exe!_crt_debugger_hook(int _Reserved=3144168) Line 65 C Desktop.exe!_invalid_parameter(const wchar_t * pszExpression=0x00000000, const wchar_t * pszFunction=0x00000000, const wchar_t * pszFile=0x00000000, unsigned int nLine=0, unsigned int pReserved=0) Line 112 + 0x7 bytes C++ Desktop.exe!_invalid_parameter_noinfo() Line 125 + 0xc bytes C++ Desktop.exe!std::_Vector_const_iterator<unsigned long,std::allocator<unsigned long> >::operator+=(int _Off=0) Line 160 + 0x14 bytes C++ Desktop.exe!std::_Vector_iterator<unsigned long,std::allocator<unsigned long> >::operator+=(int _Off=0) Line 376 C++ Desktop.exe!std::_Vector_iterator<int,std::allocato

[David Schumaker]

I see exactly the same problem in my code. This problem occurred when I migrated to visual studio 2008 and attempted to execute the code using a release build. The same code does not crash in debug build in VS 2008. Has anyone been able to figure out the cause of the problem? Thanks

David Schumaker

[Maximilien]

Good day, Were you able to fix your problem ? I'm having the same kind of problem when porting to VS2008. Thanks. Max.

This signature was proudly tested on animals.

[semitae]

I had the same problem when porting from VS2005 to VS2008. I avoided it using dynamic allocation something like this: std::vector *v; v = new ???; v->push_back(***) This works in both debug and release mode :)

^^