Go4Expert - Qsort - Sort array of strings

Hi , Can any one help me in this regard?

below is the code snippet I used to sort an array of strings

Code:

int cstring_cmp(const void *a, const void *b)

 {

   const char **ia = (const char **)a;

   const char **ib = (const char **)b;

   return strcmp(*ia, *ib);

   /* strcmp functions works exactly as expected from

   comparison function */

 }

 int removeDuplicates(int count,int k)

 {

  int i=0,j=0;

  char All[150][20];

  int y=1;

 

  

  if(count==0)

  {

   return 0;

  }

  

  for(i;i<count;i++)

  {

            if(k==1)//if the Non-Html is GIF

           {

                  sprintf(All[i],"{GIF_%d}",(i+1));//Save the "GIF" elements in "ALL[i]" array

           }

 

  }

        qsort(All, 150, 20, cstring_cmp);

 

  for(i;i<count;i++)

  {

   if(strcmp(All[i],All[i+1])==0)

   {

   }

   else

    y++;

  }

  return y;

  

 }

over her i am capturing some values in the loadrunner and storing them in a string array. i need these values to be sorted and retrieve the count of the unique values only. I am facing a Memory violation error in the line qsort. Can anyone help me solving this. the code is compiling without errors.