00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * 00005 * Copyright (c) 1999-2004 The Apache Software Foundation. All rights 00006 * reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 00012 * 1. Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in 00017 * the documentation and/or other materials provided with the 00018 * distribution. 00019 * 00020 * 3. The end-user documentation included with the redistribution, 00021 * if any, must include the following acknowledgment: 00022 * "This product includes software developed by the 00023 * Apache Software Foundation (http://www.apache.org/)." 00024 * Alternately, this acknowledgment may appear in the software itself, 00025 * if and wherever such third-party acknowledgments normally appear. 00026 * 00027 * 4. The names "Xalan" and "Apache Software Foundation" must 00028 * not be used to endorse or promote products derived from this 00029 * software without prior written permission. For written 00030 * permission, please contact apache@apache.org. 00031 * 00032 * 5. Products derived from this software may not be called "Apache", 00033 * nor may "Apache" appear in their name, without prior written 00034 * permission of the Apache Software Foundation. 00035 * 00036 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00037 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00038 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00039 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00040 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00041 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00042 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00043 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00044 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00045 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00046 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00047 * SUCH DAMAGE. 00048 * ==================================================================== 00049 * 00050 * This software consists of voluntary contributions made by many 00051 * individuals on behalf of the Apache Software Foundation and was 00052 * originally based on software copyright (c) 1999, International 00053 * Business Machines, Inc., http://www.ibm.com. For more 00054 * information on the Apache Software Foundation, please see 00055 * <http://www.apache.org/>. 00056 */ 00057 #if !defined(XALANAUTOPTR_HEADER_GUARD_1357924680) 00058 #define XALANAUTOPTR_HEADER_GUARD_1357924680 00059 00060 00061 00062 // Base include file. Must be first. 00063 #include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp> 00064 00065 00066 00067 #include <cstddef> 00068 00069 00070 00071 XALAN_CPP_NAMESPACE_BEGIN 00072 00073 00074 00075 // We're using our own auto_ptr-like class due to wide 00076 // variations amongst the varous platforms we have to 00077 // support 00078 template<class Type> 00079 class XalanAutoPtr 00080 { 00081 public: 00082 00083 XalanAutoPtr(Type* thePointer = 0) : 00084 m_pointer(thePointer) 00085 { 00086 } 00087 00088 XalanAutoPtr(const XalanAutoPtr<Type>& theSource) : 00089 m_pointer(((XalanAutoPtr<Type>&)theSource).release()) 00090 { 00091 } 00092 00093 XalanAutoPtr<Type>& 00094 operator=(XalanAutoPtr<Type>& theRHS) 00095 { 00096 if (this != &theRHS) 00097 { 00098 // This test ought not to be necessary, but 00099 // MSVC 6.0 calls delete, which checks for 0. 00100 // The problem with that is the locking is 00101 // extremely expensive. 00102 if (m_pointer != 0) 00103 { 00104 delete m_pointer; 00105 } 00106 00107 m_pointer = theRHS.release(); 00108 } 00109 00110 return *this; 00111 } 00112 00113 ~XalanAutoPtr() 00114 { 00115 // See note in operator=() about this... 00116 if (m_pointer != 0) 00117 { 00118 delete m_pointer; 00119 } 00120 } 00121 00122 Type& 00123 operator*() const 00124 { 00125 return *m_pointer; 00126 } 00127 00128 Type* 00129 operator->() const 00130 { 00131 return m_pointer; 00132 } 00133 00134 Type* 00135 get() const 00136 { 00137 return m_pointer; 00138 } 00139 00140 Type* 00141 release() 00142 { 00143 Type* const temp = m_pointer; 00144 00145 m_pointer = 0; 00146 00147 return temp; 00148 } 00149 00150 void 00151 reset(Type* thePointer = 0) 00152 { 00153 // See note in operator=() about this... 00154 if (m_pointer != 0) 00155 { 00156 delete m_pointer; 00157 } 00158 00159 m_pointer = thePointer; 00160 } 00161 00162 private: 00163 00164 Type* m_pointer; 00165 }; 00166 00167 00168 00169 // A class similar to XalanAutoPtr, but for arrays. 00170 template<class Type> 00171 class XalanArrayAutoPtr 00172 { 00173 public: 00174 00175 XalanArrayAutoPtr(Type* thePointer = 0) : 00176 m_pointer(thePointer) 00177 { 00178 } 00179 00180 XalanArrayAutoPtr(const XalanArrayAutoPtr<Type>& theSource) : 00181 m_pointer(((XalanArrayAutoPtr<Type>&)theSource).release()) 00182 { 00183 } 00184 00185 XalanArrayAutoPtr<Type>& 00186 operator=(XalanArrayAutoPtr<Type>& theRHS) 00187 { 00188 if (this != &theRHS) 00189 { 00190 // This test ought not to be necessary, but 00191 // MSVC 6.0 calls delete, which checks for 0. 00192 // The problem with that is the locking is 00193 // extremely expensive. 00194 if (m_pointer != 0) 00195 { 00196 delete [] m_pointer; 00197 } 00198 00199 m_pointer = theRHS.release(); 00200 } 00201 00202 return *this; 00203 } 00204 00205 ~XalanArrayAutoPtr() 00206 { 00207 // See note in operator=() about this... 00208 if (m_pointer != 0) 00209 { 00210 delete [] m_pointer; 00211 } 00212 } 00213 00214 Type& 00215 operator*() const 00216 { 00217 return *m_pointer; 00218 } 00219 00220 Type& 00221 #if defined(XALAN_STRICT_ANSI_HEADERS) 00222 operator[](std::size_t index) const 00223 #else 00224 operator[](size_t index) const 00225 #endif 00226 { 00227 return m_pointer[index]; 00228 } 00229 00230 Type* 00231 get() const 00232 { 00233 return m_pointer; 00234 } 00235 00236 Type* 00237 release() 00238 { 00239 Type* const temp = m_pointer; 00240 00241 m_pointer = 0; 00242 00243 return temp; 00244 } 00245 00246 void 00247 reset(Type* thePointer = 0) 00248 { 00249 // See note in operator=() about this... 00250 if (m_pointer != 0) 00251 { 00252 delete [] m_pointer; 00253 } 00254 00255 m_pointer = thePointer; 00256 } 00257 00258 private: 00259 00260 Type* m_pointer; 00261 }; 00262 00263 00264 00265 XALAN_CPP_NAMESPACE_END 00266 00267 00268 00269 #endif // if !defined(XALANAUTOPTR_HEADER_GUARD_1357924680)
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