dynamic memory problems

[voidflux]

Hello everyone, i'm implementing a string class and i'm having troubles understanding why my erase function displays garbadge.
My plan was to create a new dynamic array called temp which will hold the modified version of the array after the erase. I used memmove/memcopy from the <cstring> to store the new array.
here's my code:
note: memmove's function prototype is:

memmove(char * dest, const char *source, size_t count);
//count is how many bytes it should copy from source and move to destination.

note: chars is a dynamic array of type char so in the .h file it looks like:

private:
      char *chars;
      size_t allocated;  //how many elements including the '\0'
      size_t curr_len;   //how many elements excluding the '\0'

 void string::erase (size_t start, size_t count )
   {
      assert (start < length());
	  char *temp = new char [length()+1];
	  size_t counter = 0;

      // Don't try to erase more chars than there are!
      if (count > length() - start + 1)
         count = length() - start + 1;
		
      
	  for(size_t i = 0;  chars[i] != '\0'; i++)
	  {
		  if(i != start)
			  memmove(temp,chars+i,1);
			  //strcat(temp,chars[i]);
		  else if(i == start)
		  {
			  while(counter < count-1)
			  {
				  counter++;
				  ++i;
			  }
		  }
	  }

The erase function will start deleting at the parm "start" and it will keep deleting until count is reach, so for example if you had:
[A][B][C][D]['\0']
0 1 2 3 4
erase(2,2);

it would start at C and delete C and D and you would be left with:
[A][B][\0']

Thanks.

[azteched]

from a quick look, you don't seem to be updating your temp pointer, so you're copying to the same location every time.

[voidflux]

Yes you are correct, I fixed that error and it still doesn't work, now its getting a null exception, any idea's?