ceph/src/boost/libs/geometry/test/concepts/point_well_formed_traits.cpp

   1 // Boost.Geometry (aka GGL, Generic Geometry Library)
   2 // Unit Test
   3
   4 // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
   5 // Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
   6 // Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
   7
   8 // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
   9 // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
  10
  11 // Use, modification and distribution is subject to the Boost Software License,
  12 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
  13 // http://www.boost.org/LICENSE_1_0.txt)
  14
  15 #include <boost/geometry/core/cs.hpp>
  16
  17 #include "function_requiring_a_point.hpp"
  18
  19 struct point
  20 {
  21     point(): x(), y() {}
  22     float x, y;
  23 };
  24
  25 namespace boost { namespace geometry { namespace traits {
  26
  27 template <>
  28 struct tag<point>
  29 {
  30     typedef point_tag type;
  31 };
  32
  33 template <>
  34 struct coordinate_type<point>
  35 {
  36     typedef float type;
  37 };
  38
  39 template <>
  40 struct coordinate_system<point>
  41 {
  42     typedef bg::cs::cartesian type;
  43 };
  44
  45 template <>
  46 struct dimension<point>
  47 {
  48     enum { value = 2 };
  49 };
  50
  51 template <>
  52 struct access<point, 0>
  53 {
  54     static float get(point const& p)
  55     {
  56         return p.x;
  57     }
  58
  59     static void set(point& p, float value)
  60     {
  61         p.x = value;
  62     }
  63 };
  64
  65 template <>
  66 struct access<point, 1>
  67 {
  68     static float get(point const& p)
  69     {
  70         return p.y;
  71     }
  72
  73     static void set(point& p, float value)
  74     {
  75         p.y = value;
  76     }
  77 };
  78
  79
  80 }}} // namespace bg::traits
  81
  82 int main()
  83 {
  84     point p1;
  85     const point p2;
  86     test::function_requiring_a_point(p1, p2);
  87     return 0;
  88 }