/*
 * Copyright (c) 1995, 1996 Gunther Schadow.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#include "pg_config.h"

IDENT("@(#) BaseUnit.cc (Gunther Schadow) 12/19/96");

#pragma implementation "BaseUnit.h"

#include "BaseUnit.h"
#include "iostream.h"

base_unit_vector
base_unit_vector::operator + (const base_unit_vector &x) const
{
  base_unit_vector r;
  r.length       = length       + x.length;  
  r.time         = time         + x.time;
  r.mass         = mass         + x.mass;
  r.charge       = charge       + x.charge;
  r.temperature  = temperature  + x.temperature;
  r.lumin_intens = lumin_intens + x.lumin_intens;
  r.angle        = angle        + x.angle;

  return r;
}

base_unit_vector
base_unit_vector::operator - (const base_unit_vector& x) const
{
  base_unit_vector r;
  r.length       = length       - x.length;  
  r.time         = time         - x.time;
  r.mass         = mass         - x.mass;
  r.charge       = charge       - x.charge;
  r.temperature  = temperature  - x.temperature;
  r.lumin_intens = lumin_intens - x.lumin_intens;
  r.angle        = angle        - x.angle;

  return r;
}

base_unit_vector
base_unit_vector::operator * (int x) const
{
  base_unit_vector r;
  r.length       = length       * x;  
  r.time         = time         * x;
  r.mass         = mass         * x;
  r.charge       = charge       * x;
  r.temperature  = temperature  * x;
  r.lumin_intens = lumin_intens * x;
  r.angle        = angle        * x;

  return r;
}

base_unit_vector
base_unit_vector::operator - () const
{
  base_unit_vector r;

  r.length       = -length;
  r.time         = -time;
  r.mass         = -mass;
  r.charge       = -charge;
  r.temperature  = -temperature;
  r.lumin_intens = -lumin_intens;
  r.angle        = -angle;

  return r;
}

base_unit_vector&
base_unit_vector::operator += (const base_unit_vector &x)
{
  length       += x.length;  
  time         += x.time;
  mass         += x.mass;
  charge       += x.charge;
  temperature  += x.temperature;
  lumin_intens += x.lumin_intens;
  angle        += x.angle;

  return *this;
}

base_unit_vector&
base_unit_vector::operator -= (const base_unit_vector &x)
{
  length       -= x.length;  
  time         -= x.time;
  mass         -= x.mass;
  charge       -= x.charge;
  temperature  -= x.temperature;
  lumin_intens -= x.lumin_intens;
  angle        -= x.angle;

  return *this;
}

base_unit_vector&
base_unit_vector::operator *= (int x)
{
  length       *= x;  
  time         *= x;  
  mass         *= x;  
  charge       *= x;  
  temperature  *= x;  
  lumin_intens *= x;  
  angle        *= x;

  return *this;
}

bool
base_unit_vector::operator == (const base_unit_vector &x) const
{
  return
    length       == x.length &&  
    time         == x.time &&
    mass         == x.mass &&
    charge       == x.charge &&
    temperature  == x.temperature &&
    lumin_intens == x.lumin_intens &&
    angle        == x.angle;
}

ostream &
base_unit_vector::show(ostream &os) const
{
  return os << "["
    << length << ", "          
    << time << ", "          
    << mass << ", "          
    << charge << ", "          
    << temperature << ", "          
    << lumin_intens << ", "
    << angle << "]";
}