Bizarre error array access out of bounds

Class Ownerimage

{

Public

CSize getimagesize ();

Private

Point M_pt[2];

int m_iimgwidth;

int m_iimgheight;

}

CSize ownerimage::getimagesize ()

{

Return CSize (M_iimgwidth, m_iimgheight);

}

The rest of the function is omitted, in the process of constantly calling the GetImageSize function, the m_iimgwidth size will change, originally thought to be the csize construction problem, after the discovery CSize inherits the size, here is correct. DECLARE m_pt[2] At the end, it is found that this problem does not occur, the point array is determined to be a problem, and the other cpoint inherit from the points, after the discovery is due to use in other functions m_pt[2], and the array does not cross-border check, it directly changed the M_iimgwidth value. Take this as a ring

Bizarre error array access out of bounds