[XALANC-742] XalanVector assignment operator crash bug

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: CurrentCVS, 1.11
• Component/s: XalanC
• Environment: Tested on Windows 7, MSVC 2010
• Assignee: Steven J. Hathaway
• Reporter: Michael Chisholm
• Created: 09/Apr/13 21:46
• Updated: 11/Apr/13 18:43

Description

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;
}