1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef ARY_GETNCAST_HXX 25 #define ARY_GETNCAST_HXX 26 27 28 // USED SERVICES 29 #include <ary/object.hxx> 30 31 32 33 34 namespace ary 35 { 36 37 38 template <class DEST> 39 inline bool is_type(const ary::Object & i_obj)40is_type(const ary::Object & i_obj) 41 { 42 return i_obj.AryClass() == DEST::class_id; 43 } 44 45 46 template <class DEST> 47 inline const DEST & ary_cast(const Object & ce)48ary_cast( const Object & ce) 49 { 50 csv_assert( is_type<DEST>(ce) ); 51 return static_cast< const DEST& >(ce); 52 } 53 54 template <class DEST> 55 inline DEST & ary_cast(Object & ce)56ary_cast( Object & ce) 57 { 58 csv_assert( is_type<DEST>(ce) ); 59 return static_cast< DEST& >(ce); 60 } 61 62 template <class DEST> 63 inline const DEST * ary_cast(const Object * ce)64ary_cast( const Object * ce) 65 { 66 if ( ce ? is_type<DEST>(*ce) : false ) 67 return static_cast< const DEST* >(ce); 68 return 0; 69 } 70 71 template <class DEST> 72 inline DEST * ary_cast(Object * ce)73ary_cast( Object * ce) 74 { 75 if ( ce ? is_type<DEST>(*ce) : false ) 76 return static_cast< DEST* >(ce); 77 return 0; 78 } 79 80 81 82 83 } // namespace ary 84 #endif 85