mirror of
https://github.com/boostorg/property_map.git
synced 2026-01-19 16:32:15 +00:00
73 lines
3.7 KiB
C++
73 lines
3.7 KiB
C++
//
|
|
//=======================================================================
|
|
// 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/core/lightweight_test.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 main() {
|
|
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_TEST(get(transform_value_property_map<add1<int>, PM>(add1<int>(), orig_pm), 3) == 7);
|
|
BOOST_TEST(get(transform_value_property_map<add1<int>, PM>(add1<int>(), orig_pm), 4) == 9);
|
|
BOOST_TEST(get(make_transform_value_property_map(add1<int>(), orig_pm), 5) == 11);
|
|
BOOST_TEST(get(transform_value_property_map<add1_val<int>, PM>(add1_val<int>(), orig_pm), 3) == 7);
|
|
BOOST_TEST(get(transform_value_property_map<add1_val<int>, PM>(add1_val<int>(), orig_pm), 4) == 9);
|
|
BOOST_TEST(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_TEST(get(pm, 2) == 6);
|
|
BOOST_TEST((get(pm, 3) = 7) == 7);
|
|
BOOST_TEST(get(pm, 4) == 7);
|
|
const transform_value_property_map<return_fixed_ref<int>, PM> pm2 = pm; // Check shallow copying
|
|
BOOST_TEST(get(pm2, 5) == 7);
|
|
put(pm2, 3, 1);
|
|
BOOST_TEST(get(pm, 1) == 1);
|
|
|
|
return boost::report_errors();
|
|
}
|