00001 /* ///////////////////////////////////////////////////////////////////////// 00002 * File: stlsoft/meta/detector/has_reference.hpp (originally MTBase.h, ::SynesisStl) 00003 * 00004 * Purpose: Definition of the has_reference member type detector. 00005 * 00006 * Created: 19th November 1998 00007 * Updated: 10th August 2009 00008 * 00009 * Home: http://stlsoft.org/ 00010 * 00011 * Copyright (c) 1998-2009, Matthew Wilson and Synesis Software 00012 * All rights reserved. 00013 * 00014 * Redistribution and use in source and binary forms, with or without 00015 * modification, are permitted provided that the following conditions are met: 00016 * 00017 * - Redistributions of source code must retain the above copyright notice, this 00018 * list of conditions and the following disclaimer. 00019 * - Redistributions in binary form must reproduce the above copyright notice, 00020 * this list of conditions and the following disclaimer in the documentation 00021 * and/or other materials provided with the distribution. 00022 * - Neither the name(s) of Matthew Wilson and Synesis Software nor the names of 00023 * any contributors may be used to endorse or promote products derived from 00024 * this software without specific prior written permission. 00025 * 00026 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00027 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00028 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00029 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00030 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00031 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00032 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00033 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00034 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00035 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00036 * POSSIBILITY OF SUCH DAMAGE. 00037 * 00038 * ////////////////////////////////////////////////////////////////////// */ 00039 00040 00048 #ifndef STLSOFT_INCL_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE 00049 #define STLSOFT_INCL_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE 00050 00051 #ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION 00052 # define STLSOFT_VER_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE_MAJOR 4 00053 # define STLSOFT_VER_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE_MINOR 0 00054 # define STLSOFT_VER_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE_REVISION 2 00055 # define STLSOFT_VER_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE_EDIT 130 00056 #endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */ 00057 00058 /* ///////////////////////////////////////////////////////////////////////// 00059 * Includes 00060 */ 00061 00062 #ifndef STLSOFT_INCL_STLSOFT_H_STLSOFT 00063 # include <stlsoft/stlsoft.h> 00064 #endif /* !STLSOFT_INCL_STLSOFT_H_STLSOFT */ 00065 #ifndef STLSOFT_INCL_STLSOFT_META_HPP_CAPABILITIES 00066 # include <stlsoft/meta/capabilities.hpp> 00067 #endif /* !STLSOFT_INCL_STLSOFT_META_HPP_CAPABILITIES */ 00068 #ifndef STLSOFT_INCL_STLSOFT_META_HPP_N_TYPES 00069 # include <stlsoft/meta/n_types.hpp> 00070 #endif /* !STLSOFT_INCL_STLSOFT_META_HPP_N_TYPES */ 00071 00072 /* ///////////////////////////////////////////////////////////////////////// 00073 * Namespace 00074 */ 00075 00076 #ifndef _STLSOFT_NO_NAMESPACE 00077 namespace stlsoft 00078 { 00079 #endif /* _STLSOFT_NO_NAMESPACE */ 00080 00081 /* ///////////////////////////////////////////////////////////////////////// 00082 * Classes 00083 */ 00084 00085 #if defined(STLSOFT_COMPILER_IS_MWERKS) || \ 00086 defined(STLSOFT_FORCE_HAS_REFERENCE) 00087 00088 template <ss_typename_param_k T> 00089 one_t has_reference_function(...); 00090 00091 template <ss_typename_param_k T> 00092 seven_t has_reference_function(ss_typename_type_k T::reference const volatile *); 00093 00098 template <ss_typename_param_k T> 00099 struct has_reference 00100 { 00101 typedef T test_type; 00102 00103 private: 00104 static T t; 00105 public: 00106 00107 enum { value = sizeof(has_reference_function<T>(0)) == sizeof(seven_t) }; 00108 }; 00109 00110 # ifndef STLSOFT_DOCUMENTATION_SKIP_SECTION 00111 00112 STLSOFT_TEMPLATE_SPECIALISATION 00113 struct has_reference<void> 00114 { 00115 typedef void test_type; 00116 00117 enum { value = 0 }; 00118 }; 00119 00120 # endif /* !STLSOFT_DOCUMENTATION_SKIP_SECTION */ 00121 00122 #endif /* compiler */ 00123 00124 /* ////////////////////////////////////////////////////////////////////// */ 00125 00126 #ifndef _STLSOFT_NO_NAMESPACE 00127 } /* namespace stlsoft */ 00128 #endif /* _STLSOFT_NO_NAMESPACE */ 00129 00130 /* ////////////////////////////////////////////////////////////////////// */ 00131 00132 #endif /* !STLSOFT_INCL_STLSOFT_META_DETECTOR_HPP_HAS_REFERENCE */ 00133 00134 /* ///////////////////////////// end of file //////////////////////////// */