ceph/src/boost/libs/geometry/test/util/math_divide.cpp

   1 // Boost.Geometry
   2 // Unit Test
   3
   4 // Copyright (c) 2022 Barend Gehrels, Amsterdam, the Netherlands.
   5
   6 // Use, modification and distribution is subject to the Boost Software License,
   7 // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
   8 // http://www.boost.org/LICENSE_1_0.txt)
   9
  10
  11 #include <geometry_test_common.hpp>
  12
  13 #include <boost/geometry/util/math.hpp>
  14
  15 namespace bgm = bg::math;
  16
  17 template <typename T>
  18 void test_integer()
  19 {
  20     BOOST_CHECK_EQUAL(0, bgm::divide<T>(0, 2));
  21
  22     BOOST_CHECK_EQUAL(1, bgm::divide<T>(1, 2));
  23     BOOST_CHECK_EQUAL(-1, bgm::divide<T>(-1, 2));
  24     BOOST_CHECK_EQUAL(-1, bgm::divide<T>(1, -2));
  25     BOOST_CHECK_EQUAL(1, bgm::divide<T>(-1, -2));
  26
  27     BOOST_CHECK_EQUAL(2, bgm::divide<T>(4, 2));
  28     BOOST_CHECK_EQUAL(3, bgm::divide<T>(5, 2));
  29
  30     BOOST_CHECK_EQUAL(9, bgm::divide<T>(94, 10));
  31     BOOST_CHECK_EQUAL(10, bgm::divide<T>(95, 10));
  32     BOOST_CHECK_EQUAL(10, bgm::divide<T>(99, 10));
  33
  34     BOOST_CHECK_EQUAL(-9, bgm::divide<T>(94, -10));
  35     BOOST_CHECK_EQUAL(-10, bgm::divide<T>(95, -10));
  36     BOOST_CHECK_EQUAL(-10, bgm::divide<T>(99, -10));
  37
  38     BOOST_CHECK_EQUAL(-9, bgm::divide<T>(-94, 10));
  39     BOOST_CHECK_EQUAL(-10, bgm::divide<T>(-95, 10));
  40     BOOST_CHECK_EQUAL(-10, bgm::divide<T>(-99, 10));
  41
  42     BOOST_CHECK_EQUAL(9, bgm::divide<T>(-94, -10));
  43     BOOST_CHECK_EQUAL(10, bgm::divide<T>(-95, -10));
  44     BOOST_CHECK_EQUAL(10, bgm::divide<T>(-99, -10));
  45
  46     BOOST_CHECK_EQUAL(5, bgm::divide<T>(4567, 1000));
  47 }
  48
  49 template <typename T>
  50 void test_floating_point()
  51 {
  52     constexpr double eps = 1.0e-6;
  53     BOOST_CHECK_CLOSE(4.567, bgm::divide<T>(4567, 1000), eps);
  54 }
  55
  56 int test_main(int, char* [])
  57 {
  58     test_integer<int>();
  59     test_floating_point<double>();
  60
  61     return 0;
  62 }