diff options
Diffstat (limited to 'src/lib/position.h')
| -rw-r--r-- | src/lib/position.h | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/src/lib/position.h b/src/lib/position.h index f9bd0987c..345f7ab4a 100644 --- a/src/lib/position.h +++ b/src/lib/position.h @@ -1,5 +1,5 @@ /* - Copyright (C) 2013 Carl Hetherington <cth@carlh.net> + Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net> 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 @@ -21,7 +21,7 @@ #define DCPOMATIC_POSITION_H /** @struct Position - * @brief A position. + * @brief A position (x and y coordinates) */ template <class T> class Position @@ -50,4 +50,18 @@ operator+ (Position<T> const & a, Position<T> const & b) return Position<T> (a.x + b.x, a.y + b.y); } +template<class T> +Position<T> +operator- (Position<T> const & a, Position<T> const & b) +{ + return Position<T> (a.x - b.x, a.y - b.y); +} + +template<class T> +bool +operator== (Position<T> const & a, Position<T> const & b) +{ + return a.x == b.x && a.y == b.y; +} + #endif |