[188] | 1 | /*
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| 2 | * The Apache Software License, Version 1.1
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| 3 | *
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| 4 | * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
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| 5 | * reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | *
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| 11 | * 1. Redistributions of source code must retain the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer.
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| 13 | *
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in
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| 16 | * the documentation and/or other materials provided with the
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| 17 | * distribution.
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| 18 | *
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| 19 | * 3. The end-user documentation included with the redistribution,
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| 20 | * if any, must include the following acknowledgment:
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| 21 | * "This product includes software developed by the
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| 22 | * Apache Software Foundation (http://www.apache.org/)."
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| 23 | * Alternately, this acknowledgment may appear in the software itself,
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| 24 | * if and wherever such third-party acknowledgments normally appear.
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| 25 | *
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| 26 | * 4. The names "Xerces" and "Apache Software Foundation" must
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| 27 | * not be used to endorse or promote products derived from this
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| 28 | * software without prior written permission. For written
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| 29 | * permission, please contact apache\@apache.org.
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| 30 | *
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| 31 | * 5. Products derived from this software may not be called "Apache",
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| 32 | * nor may "Apache" appear in their name, without prior written
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| 33 | * permission of the Apache Software Foundation.
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| 34 | *
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| 35 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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| 36 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 37 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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| 38 | * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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| 39 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 40 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 41 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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| 42 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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| 43 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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| 44 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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| 45 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 46 | * SUCH DAMAGE.
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| 47 | * ====================================================================
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| 48 | *
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| 49 | * This software consists of voluntary contributions made by many
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| 50 | * individuals on behalf of the Apache Software Foundation, and was
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| 51 | * originally based on software copyright (c) 1999, International
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| 52 | * Business Machines, Inc., http://www.ibm.com . For more information
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| 53 | * on the Apache Software Foundation, please see
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| 54 | * <http://www.apache.org/>.
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| 55 | */
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| 56 |
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| 57 | /**
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| 58 | * $Log: FlagJanitor.c,v $
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| 59 | * Revision 1.3 2004/01/29 11:48:46 cargilld
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| 60 | * Code cleanup changes to get rid of various compiler diagnostic messages.
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| 61 | *
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| 62 | * Revision 1.2 2002/11/04 15:22:03 tng
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| 63 | * C++ Namespace Support.
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| 64 | *
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| 65 | * Revision 1.1.1.1 2002/02/01 22:22:10 peiyongz
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| 66 | * sane_include
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| 67 | *
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| 68 | * Revision 1.3 2000/03/02 19:54:39 roddey
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| 69 | * This checkin includes many changes done while waiting for the
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| 70 | * 1.1.0 code to be finished. I can't list them all here, but a list is
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| 71 | * available elsewhere.
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| 72 | *
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| 73 | * Revision 1.2 2000/02/06 07:48:01 rahulj
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| 74 | * Year 2K copyright swat.
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| 75 | *
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| 76 | * Revision 1.1.1.1 1999/11/09 01:04:15 twl
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| 77 | * Initial checkin
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| 78 | *
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| 79 | * Revision 1.2 1999/11/08 20:45:06 rahul
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| 80 | * Swat for adding in Product name and CVS comment log variable.
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| 81 | *
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| 82 | */
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| 83 |
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| 84 |
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| 85 | // ---------------------------------------------------------------------------
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| 86 | // Includes
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| 87 | // ---------------------------------------------------------------------------
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| 88 | #if defined(XERCES_TMPLSINC)
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| 89 | #include <xercesc/util/FlagJanitor.hpp>
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| 90 | #endif
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| 91 |
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| 92 | XERCES_CPP_NAMESPACE_BEGIN
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| 93 |
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| 94 | // ---------------------------------------------------------------------------
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| 95 | // Constructors and Destructor
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| 96 | // ---------------------------------------------------------------------------
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| 97 | template <class T> FlagJanitor<T>::FlagJanitor(T* const valPtr, const T newVal)
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| 98 | : fValPtr(valPtr)
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| 99 | {
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| 100 | // Store the pointer, save the org value, and store the new value
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| 101 | if (fValPtr)
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| 102 | {
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| 103 | fOldVal = *fValPtr;
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| 104 | *fValPtr = newVal;
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| 105 | }
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| 106 | }
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| 107 |
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| 108 | template <class T> FlagJanitor<T>::~FlagJanitor()
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| 109 | {
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| 110 | // Restore the old value
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| 111 | if (fValPtr)
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| 112 | *fValPtr = fOldVal;
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| 113 | }
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| 114 |
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| 115 |
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| 116 | // ---------------------------------------------------------------------------
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| 117 | // Value management methods
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| 118 | // ---------------------------------------------------------------------------
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| 119 | template <class T> void FlagJanitor<T>::release()
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| 120 | {
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| 121 | fValPtr = 0;
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| 122 | }
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| 123 |
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| 124 | XERCES_CPP_NAMESPACE_END
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