if_contains_select_type.h
Go to the documentation of this file.00001 /******************************************************************************* 00002 * 00003 * Copyright (c) 2010 Philipp Werner <philipp.werner@st.ovgu.de> 00004 * Michael Schulze <mschulze@ivs.cs.uni-magdeburg.de> 00005 * All rights reserved. 00006 * 00007 * Redistribution and use in source and binary forms, with or without 00008 * modification, are permitted provided that the following conditions 00009 * are met: 00010 * 00011 * * Redistributions of source code must retain the above copyright 00012 * notice, this list of conditions and the following disclaimer. 00013 * 00014 * * Redistributions in binary form must reproduce the above copyright 00015 * notice, this list of conditions and the following disclaimer in 00016 * the documentation and/or other materials provided with the 00017 * distribution. 00018 * 00019 * * Neither the name of the copyright holders nor the names of 00020 * contributors may be used to endorse or promote products derived 00021 * from this software without specific prior written permission. 00022 * 00023 * 00024 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS 00025 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 00026 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 00027 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00028 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00029 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00030 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00031 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00032 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00033 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00034 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00035 * 00036 * 00037 * $Id$ 00038 * 00039 ******************************************************************************/ 00040 00041 00042 #ifndef __IF_CONTAINS_SELECT_TYPE_H_62F83DCA2DD154__ 00043 #define __IF_CONTAINS_SELECT_TYPE_H_62F83DCA2DD154__ 00044 00045 00046 #include "config/type_traits/if_select_type.h" 00047 #include "config/type_traits/contains_type.h" 00048 00049 00080 #define IF_CONTAINS_SELECT_TYPE_(NAME) \ 00081 template < typename T, typename Alternative> \ 00082 class if_contains_select_type_##NAME { \ 00083 CONTAINS_TYPE_(NAME); \ 00084 struct AlternativeParent { \ 00085 typedef Alternative NAME; \ 00086 }; \ 00087 typedef typename if_select_type< \ 00088 contains_type_##NAME<T>::value, \ 00089 T, \ 00090 AlternativeParent \ 00091 >::type parent_type; \ 00092 public: \ 00093 typedef typename parent_type::NAME type; \ 00094 } 00095 00096 00097 #endif // __IF_CONTAINS_SELECT_TYPE_H_62F83DCA2DD154__ 00098