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From "Michael Chisholm (JIRA)" <j...@apache.org>
Subject [jira] [Created] (XALANC-742) XalanVector assignment operator crash bug
Date Tue, 09 Apr 2013 21:46:17 GMT
Michael Chisholm created XALANC-742:
---------------------------------------

             Summary: XalanVector assignment operator crash bug
                 Key: XALANC-742
                 URL: https://issues.apache.org/jira/browse/XALANC-742
             Project: XalanC
          Issue Type: Bug
          Components: XalanC
    Affects Versions: 1.11, CurrentCVS
         Environment: Tested on Windows 7 and RHEL5
            Reporter: Michael Chisholm
            Assignee: Steven J. Hathaway
            Priority: Critical


When assigning an empty XalanVector to another, a NULL dereference and crash results.  Specifically,
the std::copy() statement copies to this->begin(), which returns NULL when the vector is
empty.

Here is simple demo code:

#include <xercesc/util/PlatformUtils.hpp>
#include <xalanc/Include/XalanVector.hpp>

using namespace xercesc;
using namespace xalanc;

int main(int argc, char* argv[])
{
	XMLPlatformUtils::Initialize();

	XalanVector<int> vec1;
	XalanVector<int> vec2(XalanMemMgrs::getDefaultXercesMemMgr(), 5);

	vec1 = vec2;

	XMLPlatformUtils::Terminate();
	
	return 0;
}



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