PLearn 0.1
BinaryOpVMatrix.h
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00001 // -*- C++ -*-
00002 
00003 // BinaryOpVMatrix.h
00004 //
00005 // Copyright (C) 2005 Nicolas Chapados
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: BinaryOpVMatrix.h 9980 2009-03-03 20:15:28Z tihocan $
00037  ******************************************************* */
00038 
00039 // Authors: Nicolas Chapados
00040 
00044 #ifndef BinaryOpVMatrix_INC
00045 #define BinaryOpVMatrix_INC
00046 
00047 #include <plearn/vmat/RowBufferedVMatrix.h>
00048 #include <plearn/vmat/VMat.h>
00049 
00050 namespace PLearn {
00051 
00052 class BinaryOpVMatrix: public RowBufferedVMatrix
00053 {
00054 
00055 private:
00056 
00057     typedef RowBufferedVMatrix inherited;
00058 
00059     static real op_add(double x, double y) { return x+y; }
00060     static real op_sub(double x, double y) { return x-y; }
00061     static real op_mul(double x, double y) { return x*y; }
00062     static real op_div(double x, double y) { return x/y; }
00063 
00065     real (*selected_op)(double,double);
00066 
00068     mutable Vec row1, row2;
00069 
00070 public:
00071 
00073     VMat source1;
00074 
00076     VMat source2;
00077 
00079     string op;
00080 
00081 
00083     BinaryOpVMatrix();
00084 
00085     BinaryOpVMatrix(VMat source1, VMat source2, const string& op,
00086                     bool call_build_ = true);
00087 
00088     // ******************
00089     // * Object methods *
00090     // ******************
00091 
00092 private:
00093 
00095     // (Please implement in .cc)
00096     void build_();
00097 
00098 protected:
00099 
00101     // (Please implement in .cc)
00102     static void declareOptions(OptionList& ol);
00103 
00106     virtual void getNewRow(int i, const Vec& v) const;
00107 
00108 public:
00109 
00110     // Simply call inherited::build() then build_().
00111     virtual void build();
00112 
00114     virtual void makeDeepCopyFromShallowCopy(CopiesMap& copies);
00115 
00117     PLEARN_DECLARE_OBJECT(BinaryOpVMatrix);
00118 
00119 };
00120 
00121 DECLARE_OBJECT_PTR(BinaryOpVMatrix);
00122 
00123 } // end of namespace PLearn
00124 #endif
00125 
00126 
00127 /*
00128   Local Variables:
00129   mode:c++
00130   c-basic-offset:4
00131   c-file-style:"stroustrup"
00132   c-file-offsets:((innamespace . 0)(inline-open . 0))
00133   indent-tabs-mode:nil
00134   fill-column:79
00135   End:
00136 */
00137 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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