PLearn 0.1
diff.cc
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00001 // -*- C++ -*-
00002 
00003 // diff.cc
00004 //
00005 // Copyright (C) 2005 Olivier Delalleau 
00006 // 
00007 // Redistribution and use in source and binary forms, with or without
00008 // modification, are permitted provided that the following conditions are met:
00009 // 
00010 //  1. Redistributions of source code must retain the above copyright
00011 //     notice, this list of conditions and the following disclaimer.
00012 // 
00013 //  2. Redistributions in binary form must reproduce the above copyright
00014 //     notice, this list of conditions and the following disclaimer in the
00015 //     documentation and/or other materials provided with the distribution.
00016 // 
00017 //  3. The name of the authors may not be used to endorse or promote
00018 //     products derived from this software without specific prior written
00019 //     permission.
00020 // 
00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031 // 
00032 // This file is part of the PLearn library. For more information on the PLearn
00033 // library, go to the PLearn Web site at www.plearn.org
00034 
00035 /* *******************************************************      
00036  * $Id: .pyskeleton_header 544 2003-09-01 00:05:31Z plearner $ 
00037  ******************************************************* */
00038 
00039 // Authors: Olivier Delalleau
00040 
00044 #include "diff.h"
00045 #include <plearn/base/Object.h>
00046 #include <plearn/base/PLearnDiff.h>
00047 
00048 namespace PLearn {
00049 using namespace std;
00050 
00052 // diff //
00054 /*
00055   int diff(const string& refer, const string& other, const OptionBase* opt, PLearnDiff* diffs)
00056   {
00057   pout << "Calling basic diff with Option< ObjectType, " << opt->optiontype() << " >" << endl;
00058   PLASSERT( diffs );
00059   return diffs->diff(refer, other, opt->optionname());
00060   }
00061 */
00062 
00064 // diff //
00066 int diff(PP<Object> refer, PP<Object> other, PLearnDiff* diffs)
00067 {
00068     bool delete_diffs = false;
00069     if (!diffs) {
00070         diffs = new PLearnDiff();
00071         delete_diffs = true;
00072     }
00073     PLASSERT(diffs);
00074     // Check objects are of the same class.
00075     string refer_class = refer ? refer->classname() : "null";
00076     string other_class = other ? other->classname() : "null";
00077     int n_diffs = diffs->diff(refer_class, other_class, "classname");
00078     if (n_diffs > 0)
00079         return n_diffs; // We cannot compare two objects from different classes.
00080     else if (!other && !refer)
00081         return 0; // Both objects are null pointers.
00082     PLASSERT( other && refer );
00083     OptionList& options = refer->getOptionList();
00084     for (OptionList::const_iterator it = options.begin(); it != options.end(); it++) {
00085         // pout << "Comparing " << (*it)->optionname() << endl;
00086         string option = (*it)->optionname();
00087         string refer_opt = refer->getOption(option);
00088         string other_opt = other->getOption(option);
00089         n_diffs += (*it)->diff(refer_opt, other_opt, diffs);
00090     }
00091     if (delete_diffs)
00092         delete diffs;
00093     return n_diffs;
00094 }
00095 
00096 } // end of namespace PLearn
00097 
00098 
00099 /*
00100   Local Variables:
00101   mode:c++
00102   c-basic-offset:4
00103   c-file-style:"stroustrup"
00104   c-file-offsets:((innamespace . 0)(inline-open . 0))
00105   indent-tabs-mode:nil
00106   fill-column:79
00107   End:
00108 */
00109 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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