| 1 | // Boost.Geometry (aka GGL, Generic Geometry Library) |
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| 2 | // Unit Test |
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| 3 | |
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| 4 | // Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands. |
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| 5 | // Copyright (c) 2008-2012 Bruno Lalande, Paris, France. |
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| 6 | // Copyright (c) 2009-2012 Mateusz Loskot, London, UK. |
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| 7 | // Copyright (c) 2023 Adam Wulkiewicz, Lodz, Poland. |
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| 8 | |
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| 9 | // This file was modified by Oracle on 2021. |
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| 10 | // Modifications copyright (c) 2021, Oracle and/or its affiliates. |
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| 11 | // Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle |
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| 12 | |
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| 13 | // Parts of Boost.Geometry are redesigned from Geodan's Geographic Library |
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| 14 | // (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands. |
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| 15 | |
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| 16 | // Use, modification and distribution is subject to the Boost Software License, |
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| 17 | // Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 18 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 19 | |
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| 20 | |
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| 21 | #include <geometry_test_common.hpp> |
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| 22 | |
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| 23 | #include <boost/geometry/util/condition.hpp> |
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| 24 | #include <boost/geometry/util/select_most_precise.hpp> |
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| 25 | |
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| 26 | |
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| 27 | struct user_defined {}; |
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| 28 | |
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| 29 | template <typename T1, typename T2, typename ExpectedType> |
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| 30 | void test() |
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| 31 | { |
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| 32 | using type = typename bg::select_most_precise<T1, T2>::type; |
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| 33 | bool is_same = std::is_same<type, ExpectedType>::value; |
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| 34 | |
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| 35 | BOOST_CHECK_MESSAGE(is_same, |
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| 36 | "The most precise of types " << |
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| 37 | "T1: {" << typeid(T1).name() << " | s: " << sizeof(T1) << "}" << |
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| 38 | " and " << |
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| 39 | "T2: {" << typeid(T2).name() << " | s: " << sizeof(T2) << "}" << |
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| 40 | " does not match " << |
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| 41 | "ExpectedType: {" << typeid(ExpectedType).name() << " | s: " << sizeof(ExpectedType) << "}" ); |
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| 42 | } |
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| 43 | |
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| 44 | int test_main(int, char* []) |
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| 45 | { |
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| 46 | // fp only |
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| 47 | test<float, float, float>(); |
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| 48 | test<float, double, double>(); |
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| 49 | test<double, float, double>(); |
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| 50 | test<double, double, double>(); |
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| 51 | |
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| 52 | // integer only |
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| 53 | test<int, int, int>(); |
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| 54 | test<int, short int, int>(); |
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| 55 | test<short int, int, int>(); |
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| 56 | test<short int, short int, short int>(); |
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| 57 | |
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| 58 | // int/fp |
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| 59 | test<double, int, double>(); |
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| 60 | test<int, double, double>(); |
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| 61 | test<long double, long double, long double>(); |
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| 62 | test<float, int, float>(); |
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| 63 | test<int, float, float>(); |
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| 64 | |
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| 65 | if (BOOST_GEOMETRY_CONDITION(sizeof(long double) > sizeof(double))) |
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| 66 | { |
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| 67 | // This cannot be done for MSVC because double/long double is the same |
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| 68 | // This is also true for Android |
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| 69 | test<double, long double, long double>(); |
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| 70 | test<long double, double, long double>(); |
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| 71 | } |
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| 72 | |
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| 73 | // with any other non-integer/float class |
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| 74 | test<int, user_defined, user_defined>(); |
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| 75 | test<user_defined, int, user_defined>(); |
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| 76 | test<long double, user_defined, user_defined>(); |
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| 77 | test<user_defined, long double, user_defined>(); |
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| 78 | test<user_defined, user_defined, user_defined>(); |
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| 79 | |
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| 80 | // should not compile |
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| 81 | //test<void, void, void>(); |
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| 82 | |
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| 83 | return 0; |
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| 84 | } |
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| 85 | |
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