/*
 * This file is part of libdyn.a, the C Dynamic Object library.  It
 * contains the source code for the internal function _DynRealloc().
 *
 * There are no restrictions on this code; however, if you make any
 * changes, I request that you document them so that I do not get
 * credit or blame for your modifications.
 *
 * Written by Barr3y Jaspan, Student Information Processing Board (SIPB)
 * and MIT-Project Athena, 1989.
 */

#include <stdio.h>
#include "DynObject.H"

int DynObject::Realloc(int num_incs)
{
     DynPtr temp;
     int new_size_in_bytes;
     
     new_size_in_bytes = el_size*(size + inc*num_incs);

     if (debug)
	  fprintf(stderr,
		  "dyn: alloc: Increasing object by %d bytes (%d incs).\n",
		  el_size * inc * num_incs, num_incs);
     
     temp = (DynPtr) realloc(array, new_size_in_bytes);
     if (temp == NULL) {
	  if (debug)
	       fprintf(stderr, "dyn: alloc: Out of memory.\n");
	  return DYN_NOMEM;
     }
     else {
	  array = temp;
	  size += inc*num_incs;
     }

     if (debug)
	  fprintf(stderr, "dyn: alloc: done.\n");
	  
     return DYN_OK;
}