Triggered the exception: read access rights conflict,

This is 0 by 8,

If there are suitable for this exception handler, the program will continue to run safely,

Osg: : ref_ptr & lt; Osg: : Group & gt; MRoot;
Void COSGObject: : InitSceneGraph ()
{
MRoot=new osg: : Group;
}

 
The inline ref_ptr & amp; Operator=(T * PTR) 
{
If (_ptr==PTR) return * this; 
T * tmp_ptr=_ptr; 
_ptr=PTR; 
If (_ptr) _ptr - & gt; Ref (); 
//unref second to prevent any deletion of any object which took 
//be referenced by the other object. Appropriate precautions rp is the child of the 
//the original _ptr. 
If (tmp_ptr) tmp_ptr - & gt; Unref (); 
Return * this; 
} 

_ptr & lt; Unable to read from the memory & gt;

CodePudding user response:

If (_ptr==PTR) return * this; The _ptr unable to read from memory