175584Sru// -*- C++ -*- 275584Sru/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc. 375584Sru Written by James Clark (jjc@jclark.com) 475584Sru 575584SruThis file is part of groff. 675584Sru 775584Srugroff is free software; you can redistribute it and/or modify it under 875584Sruthe terms of the GNU General Public License as published by the Free 975584SruSoftware Foundation; either version 2, or (at your option) any later 1075584Sruversion. 1175584Sru 1275584Srugroff is distributed in the hope that it will be useful, but WITHOUT ANY 1375584SruWARRANTY; without even the implied warranty of MERCHANTABILITY or 1475584SruFITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 1575584Srufor more details. 1675584Sru 1775584SruYou should have received a copy of the GNU General Public License along 1875584Sruwith groff; see the file COPYING. If not, write to the Free Software 19151497SruFoundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */ 2075584Sru 2175584Srustruct place; 2275584Srustruct position { 2375584Sru double x; 2475584Sru double y; 2575584Sru position(double, double ); 2675584Sru position(); 2775584Sru position(const place &); 2875584Sru position &operator+=(const position &); 2975584Sru position &operator-=(const position &); 3075584Sru position &operator*=(double); 3175584Sru position &operator/=(double); 3275584Sru}; 3375584Sru 3475584Sruposition operator-(const position &); 3575584Sruposition operator+(const position &, const position &); 3675584Sruposition operator-(const position &, const position &); 3775584Sruposition operator/(const position &, double); 3875584Sruposition operator*(const position &, double); 3975584Sru// dot product 4075584Srudouble operator*(const position &, const position &); 4175584Sruint operator==(const position &, const position &); 4275584Sruint operator!=(const position &, const position &); 4375584Sru 4475584Srudouble hypot(const position &a); 4575584Sru 4675584Srutypedef position distance; 4775584Sru 48