IFPACK Development
ifp_BlockVec.h
00001 /*@HEADER
00002 // ***********************************************************************
00003 // 
00004 //       Ifpack: Object-Oriented Algebraic Preconditioner Package
00005 //                 Copyright (2002) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 //@HEADER
00028 */
00029 
00030 #ifndef _IFP_BLOCKVEC_H_
00031 #define _IFP_BLOCKVEC_H_
00032 
00033 #include "Ifpack_config.h"
00034 
00035 #include <stdlib.h>
00036 #ifndef NULL
00037 #define NULL 0
00038 #endif
00039 #ifdef DEBUG
00040 #include <assert.h>
00041 #endif
00042 
00043 class IFPACK_DEPRECATED ifp_BlockVec
00044 {
00045 private:
00046     double *base;
00047     const int *partit;
00048     int owndata;
00049 
00050 public:
00051     double *v;
00052     int     dim0;
00053     int     dim1;
00054     int     ld;
00055     int     size0;
00056 
00057     ifp_BlockVec& operator()(int i)
00058     {
00059 #ifdef DEBUG
00060             assert(partit != NULL);
00061             assert(partit[i] < partit[i+1]);
00062             assert(partit[i+1] <= dim0);
00063 #endif
00064         v = base + partit[i];
00065         size0 = partit[i+1] - partit[i];
00066         return *this;
00067     }
00068 
00069     ifp_BlockVec(int nr, int nc, const double *a, int lda, 
00070                  const int *partitioning)
00071     {
00072         dim0 = nr;
00073         dim1 = nc;
00074         ld = lda;
00075     size0 = nr;
00076         base = (double *)a;
00077         v = (double *)a;
00078         partit = partitioning;
00079     owndata = 0;
00080     }
00081 
00082     ifp_BlockVec(const ifp_BlockVec& A);
00083     ifp_BlockVec(const ifp_BlockVec& A, int i);
00084 
00085    ~ifp_BlockVec()
00086     {
00087     if (owndata)
00088         delete [] base;
00089     base = NULL;
00090     }
00091 
00092     void VecCopy(const ifp_BlockVec& A);
00093     void VecSetToZero();
00094 
00095     void BlockCopy(const ifp_BlockVec& A);
00096     void BlockSetToZero();
00097 };
00098 
00099 #endif // _IFP_BLOCKVEC_H_
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