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Diffstat (limited to 'src/preproc/pic/position.h')
| -rw-r--r-- | src/preproc/pic/position.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/src/preproc/pic/position.h b/src/preproc/pic/position.h new file mode 100644 index 0000000..fb32737 --- /dev/null +++ b/src/preproc/pic/position.h @@ -0,0 +1,46 @@ +// -*- C++ -*- +/* Copyright (C) 1989-2020 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 3 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>. */ + +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; + |