Hi Monks,

I am facing a problem to delete memory which is allocated using Nexz function. Here is my sample programme, in my sample programme I want to concatenate two strings and show the result.
First .h file (StringTest.h)
===========================

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char* StringAdd (char* x, char* y);

void FreeMemory (void* z);
[download]

.c File (StringTest.c)
======================

#include "StringTest.h"

char* StringAdd (char* x, char* y)
{
        char* ReturnString;
        int Length = strlen(x) + strlen(y);
        ReturnString = (char*) malloc (Length*sizeof(char));
        strcpy (ReturnString, x);
        strcat (ReturnString, y);
        return ReturnString;
}


void FreeMemory (void* z)
{
   void* current = NULL;
   current = z;
   free (current);
   current = NULL;
   if (NULL == current )
   {
      printf ("Memory deallocated\n");
   }
}
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.xs file (MyStringTest.xs)
===========================

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#define XARG 123

#include "StringTest.h"


MODULE = MyStringTest           PACKAGE = MyStringTest


char*
TestStringAdd (a,b)
        char* a
        char* b


        CODE:
                char* c;
                char* d;
                int length;
                c = StringAdd(a, b);

                length = strlen(c);
                Newz (XARG, d, length, char*);

                strcpy (d, (const char*)c);

                // deallocate Memory
                FreeMemory (c);

                printf ("Name::%s\n", d);
                printf ("Length::%d\n", length);
                RETVAL = d;

        OUTPUT:
          RETVAL
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Test file (test.pl)
========================

use Test;
BEGIN { plan tests => 1 };
use MyStringTest;
print MyStringTest::TestStringAdd(Pijush, Koley), "\n";
ok(1); # If we made it this far, we're ok.
[download]

The code is working fine. But there is memory leakage problem in the code. I am doing a Newz, but no corresponding Safefree is there. I want to avoid the memory leakage problem. I know if I rewrite the programme in OO model, then in DESTROY method I can call Safefree function. Can you please suggest me any other method so that I do not need to rewrite the complete function?
Thanks in advance.
-Pijush

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