ceph/src/boost/libs/geometry/test/util/rational.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
  16 #include <geometry_test_common.hpp>
  17
  18 #include <boost/geometry/geometries/geometries.hpp>
  19 #include <boost/geometry/io/wkt/wkt.hpp>
  20 #include <boost/geometry/util/rational.hpp>
  21
  22 void test_coordinate_cast(std::string const& s, int expected_nom, int expected_denom)
  23 {
  24     boost::rational<int> a = bg::detail::coordinate_cast<boost::rational<int> >::apply(s);
  25     BOOST_CHECK_EQUAL(a.numerator(), expected_nom);
  26     BOOST_CHECK_EQUAL(a.denominator(), expected_denom);
  27 }
  28
  29
  30 void test_wkt(std::string const& wkt, std::string const expected_wkt)
  31 {
  32     bg::model::point<boost::rational<int>, 2, bg::cs::cartesian> p;
  33     bg::read_wkt(wkt, p);
  34     std::ostringstream out;
  35     out << bg::wkt(p);
  36
  37     BOOST_CHECK_EQUAL(out.str(), expected_wkt);
  38 }
  39
  40 int test_main(int, char* [])
  41 {
  42     test_coordinate_cast("0", 0, 1);
  43     test_coordinate_cast("1", 1, 1);
  44     test_coordinate_cast("-1", -1, 1);
  45     test_coordinate_cast("-0.5", -1, 2);
  46     test_coordinate_cast("-1.5", -3, 2);
  47     test_coordinate_cast("0.5", 1, 2);
  48     test_coordinate_cast("1.5", 3, 2);
  49     test_coordinate_cast("2.12345", 42469, 20000);
  50     test_coordinate_cast("1.", 1, 1);
  51
  52     test_coordinate_cast("3/2", 3, 2);
  53     test_coordinate_cast("-3/2", -3, 2);
  54
  55     test_wkt("POINT(1.5 2.75)", "POINT(3/2 11/4)");
  56     test_wkt("POINT(3/2 11/4)", "POINT(3/2 11/4)");
  57     test_wkt("POINT(-1.5 2.75)", "POINT(-3/2 11/4)");
  58     test_wkt("POINT(-3/2 11/4)", "POINT(-3/2 11/4)");
  59
  60     return 0;
  61 }