Re: Transferring nodes from one DOM tree to another ----- possible?

[Alberto Massari]

Because the destructor for CreateCoreDump is invoked after the "return 
0;" statement, you are indeed invoking it after Terminate.
Change your code to have an extra logical block to force the destructor 
to be invoked before Terminate, like in

 // Initialize the XML4C2 system
 try
 {
     XMLPlatformUtils::Initialize();
 }
 catch(const XMLException &toCatch)
 {
     XERCES_STD_QUALIFIER cerr << "Error during Xerces-c
Initialization.\n"
           << "  Exception message:"
          << XMLString::transcode(toCatch.getMessage()) <<
XERCES_STD_QUALIFIER endl;
     return 1;
 }
{ // <------------------

 CreateCoreDump ccd(argV[1]);

} // <------------------


 // Call the termination method
 XMLPlatformUtils::Terminate();


Alberto

Kong Posh Bhat wrote:
-----Original Message-----
From: Alberto Massari [mailto:[EMAIL PROTECTED] 
Sent: Friday, January 11, 2008 3:20 AM
To: Kong Posh Bhat
Cc: c-users@xerces.apache.org
Subject: Re: Transferring nodes from one DOM tree to another -----
    
possible?
  
In this case I need to have a look at the full source....

Alberto

P.S. Please keep c-users@xerces.apache.org in the CC list
    

Hi,

I have been able to reproduce the problem with a dummy class (that I
have named CreateCoreDump).  The listing for the class is provided
below.

In this class I am dynamically allocating an instance of the
XercesDOMParser class.  If I try to delete this in the destructor, core
dump ensues.

Here are the details of my execution environment:
        - gcc version 3.3.1
        - Linux 2.4.20-31.9smp #1 SMP



//////// Source code begin ////////////////
#include <iostream>
#include <stdexcept>
#include <string>

#include "xercesc/parsers/XercesDOMParser.hpp"

using namespace std;
XERCES_CPP_NAMESPACE_USE

#define DST_BLOCK_SIZE 8192

//---------------------------------------------------
//
//---------------------------------------------------
class CreateCoreDump
{
public:
  CreateCoreDump(const string& inputXMLFileName) throw (bad_alloc)
  {
    m_parser = new XercesDOMParser;

    try
    {
      m_parser->parse(inputXMLFileName.c_str());
    }
    catch(...)
    {
#ifdef DEBUG
      cerr << "Error in parsing file " << inputXMLFileName << " ---
issuing exception\n";
      delete m_parser;
      m_parser = NULL;

      throw bad_alloc();
 #endif // DEBUG
    }

    DOMDocument* domPtr = m_parser->adoptDocument();
    //
    // Do something useful here
    //
  }

  virtual ~CreateCoreDump()
  {
    if(m_parser)
      delete m_parser;   // This is the statement that causes the core
dump
  }
  
protected:

  XercesDOMParser*    m_parser;
};


//
------------------------------------------------------------------------
---
//
//  main
//
//
------------------------------------------------------------------------
---
int main(int argC, char* argV[])
{
  // Check command line arguments.
  if (argC < 2)
  {
      cout << "usage: " << argV[1] << " <input XML file>\n";;
      XMLPlatformUtils::Terminate();
      return 1;
  }

  // Initialize the XML4C2 system
  try
  {
      XMLPlatformUtils::Initialize();
  }
  catch(const XMLException &toCatch)
  {
      XERCES_STD_QUALIFIER cerr << "Error during Xerces-c
Initialization.\n"
            << "  Exception message:"
           << XMLString::transcode(toCatch.getMessage()) <<
XERCES_STD_QUALIFIER endl;
      return 1;
  }

  CreateCoreDump ccd(argV[1]);

  // Call the termination method
  XMLPlatformUtils::Terminate();

  return 0;
}

//////// Source code end ////////////////