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// -*- C++ -*-
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
Written by James Clark (jjc@jclark.com)
This file is part of groff.
groff 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, or (at your option) any later
version.
groff 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 groff; see the file COPYING. If not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
struct place;
struct position {
double x;
double y;
position(double, double );
position();
position(const place &);
position &operator+=(const position &);
position &operator-=(const position &);
position &operator*=(double);
position &operator/=(double);
};
position operator-(const position &);
position operator+(const position &, const position &);
position operator-(const position &, const position &);
position operator/(const position &, double);
position operator*(const position &, double);
// dot product
double operator*(const position &, const position &);
int operator==(const position &, const position &);
int operator!=(const position &, const position &);
double hypot(const position &a);
typedef position distance;
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