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- //
- //=======================================================================
- // Author: Jeremiah Willcock
- //
- // Copyright 2012, Trustees of Indiana University
- //
- // Distributed under the Boost Software License, Version 1.0. (See
- // accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt)
- //=======================================================================
- //
- #include <boost/property_map/function_property_map.hpp>
- #include <boost/property_map/transform_value_property_map.hpp>
- #include <boost/concept/assert.hpp>
- #include <boost/property_map/property_map.hpp>
- #include <boost/test/minimal.hpp>
- #include <boost/static_assert.hpp>
- // Ensure this is not default constructible
- struct times2 {typedef int result_type; times2(int) {}; int operator()(int x) const {return 2 * x;}};
- template <typename T>
- struct add1 {typedef T result_type; T operator()(const T& x) const {return x + 1;}};
- template <typename T>
- struct add1_val {typedef T result_type; T operator()(T x) const {return x + 1;}};
- template <typename T>
- struct return_fixed_ref {
- int* ptr;
- return_fixed_ref(int* ptr): ptr(ptr) {}
- typedef int& result_type;
- int& operator()(const T&) const {return *ptr;}
- };
- int test_main(int, char**) {
- using namespace boost;
- typedef function_property_map<times2, int> PM;
- PM orig_pm(times2(0));
- BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<transform_value_property_map<add1<int>, PM>, int>));
- BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<transform_value_property_map<add1<int>, PM, double>, int>));
- BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<transform_value_property_map<add1_val<int>, PM>, int>));
- BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<transform_value_property_map<add1_val<int>, PM, double>, int>));
- BOOST_CONCEPT_ASSERT((ReadablePropertyMapConcept<transform_value_property_map<return_fixed_ref<int>, PM>, int>));
- BOOST_CONCEPT_ASSERT((WritablePropertyMapConcept<transform_value_property_map<return_fixed_ref<int>, PM>, int>));
- BOOST_CONCEPT_ASSERT((ReadWritePropertyMapConcept<transform_value_property_map<return_fixed_ref<int>, PM>, int>));
- BOOST_CONCEPT_ASSERT((LvaluePropertyMapConcept<transform_value_property_map<return_fixed_ref<int>, PM>, int>));
- BOOST_STATIC_ASSERT((boost::is_same<boost::property_traits<transform_value_property_map<add1<int>, PM> >::category, boost::readable_property_map_tag>::value));
- BOOST_STATIC_ASSERT((boost::is_same<boost::property_traits<transform_value_property_map<add1_val<int>, PM> >::category, boost::readable_property_map_tag>::value));
- BOOST_STATIC_ASSERT((boost::is_same<boost::property_traits<transform_value_property_map<return_fixed_ref<int>, PM> >::category, boost::lvalue_property_map_tag>::value));
- BOOST_CHECK(get(transform_value_property_map<add1<int>, PM>(add1<int>(), orig_pm), 3) == 7);
- BOOST_CHECK(get(transform_value_property_map<add1<int>, PM>(add1<int>(), orig_pm), 4) == 9);
- BOOST_CHECK(get(make_transform_value_property_map(add1<int>(), orig_pm), 5) == 11);
- BOOST_CHECK(get(transform_value_property_map<add1_val<int>, PM>(add1_val<int>(), orig_pm), 3) == 7);
- BOOST_CHECK(get(transform_value_property_map<add1_val<int>, PM>(add1_val<int>(), orig_pm), 4) == 9);
- BOOST_CHECK(get(make_transform_value_property_map<int>(add1_val<int>(), orig_pm), 5) == 11);
- int val;
- const transform_value_property_map<return_fixed_ref<int>, PM> pm(return_fixed_ref<int>((&val)), orig_pm);
- put(pm, 1, 6);
- BOOST_CHECK(get(pm, 2) == 6);
- BOOST_CHECK((get(pm, 3) = 7) == 7);
- BOOST_CHECK(get(pm, 4) == 7);
- const transform_value_property_map<return_fixed_ref<int>, PM> pm2 = pm; // Check shallow copying
- BOOST_CHECK(get(pm2, 5) == 7);
- put(pm2, 3, 1);
- BOOST_CHECK(get(pm, 1) == 1);
- return 0;
- }
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