| /************************************************************************ |
| * |
| * 23.associative.stdcxx-16.cpp - regression test for STDCXX-16 |
| * http://issues.apache.org/jira/browse/STDCXX-16 |
| * |
| * $Id$ |
| * |
| *************************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed |
| * with this work for additional information regarding copyright |
| * ownership. The ASF licenses this file to you under the Apache |
| * License, Version 2.0 (the "License"); you may not use this file |
| * except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or |
| * implied. See the License for the specific language governing |
| * permissions and limitations under the License. |
| * |
| **************************************************************************/ |
| |
| #include <set> |
| #include <map> |
| #include <cassert> |
| |
| template <class T> |
| struct RuntimeCmp |
| { |
| enum cmp_mode {normal, reverse}; |
| |
| cmp_mode mode; |
| |
| RuntimeCmp (cmp_mode m = normal) : mode (m) { } |
| |
| bool operator() (const T& t1, const T& t2) const { |
| return mode == normal ? t1 < t2 : t2 < t1; |
| } |
| }; |
| |
| template <class T> |
| bool operator== (const RuntimeCmp <T>& lc, const RuntimeCmp <T>& rc) { |
| return lc.mode == rc.mode; |
| } |
| |
| typedef std::set <int, RuntimeCmp <int> > IntSet; |
| typedef std::map <int, int, RuntimeCmp <int> > IntMap; |
| |
| int main () |
| { |
| RuntimeCmp <int> reverse_order (RuntimeCmp<int>::reverse); |
| |
| IntSet set1; |
| IntSet set2 (reverse_order); |
| set1 = set2; |
| assert (set1.key_comp () == set2.key_comp ()); |
| assert (set1.value_comp () == set2.value_comp ()); |
| |
| IntMap map1; |
| IntMap map2 (reverse_order); |
| map1 = map2; |
| assert (map1.key_comp () == map2.key_comp ()); |
| |
| return 0; |
| } |