#define NULL 0
#include "IntFamily.h"

IntFamily::IntFamily(int Parent)
{
  parent = Parent ;
  childList = (int *)NULL ;
  numChildList = 0 ;
  sizChildList = 0 ;
}

void IntFamily::addChild(int NewChild)
{
  if (numChildList == sizChildList)
  {
    // We must grow the child list
    if (sizChildList == 0)
      sizChildList = 2 ;
    else
      sizChildList = 3*sizChildList/2 ;
    int *newChildList = new int[sizChildList] ;
    for (int i=0; i<numChildList; ++i)
      newChildList[i] = childList[i] ;
    delete[] childList ;
    childList = newChildList ;
  }
  childList[numChildList] = NewChild ;
  ++numChildList ;
}

int IntFamily::getParent() const
{
  return parent ;
}

int IntFamily::getSize() const
{
  return numChildList ;
}

int IntFamily::getChild(int I) const
{
  if (I < numChildList)
    return childList[I] ;
  else
    return -1 ;
}

IntFamily::~IntFamily()
{
  delete[] childList;
}