objreader_sdpa.h

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*                                                                           */
/* This file is part of SCIPSDP - a solving framework for mixed-integer      */
/* semidefinite programs based on SCIP.                                      */
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/* Copyright (C) 2011-2013 Discrete Optimization, TU Darmstadt               */
/*                         EDOM, FAU Erlangen-Nürnberg                       */
/*               2014-2020 Discrete Optimization, TU Darmstadt               */
/*                                                                           */
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/* This program is free software; you can redistribute it and/or             */
/* modify it under the terms of the GNU Lesser General Public License        */
/* as published by the Free Software Foundation; either version 3            */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             */
/* GNU Lesser General Public License for more details.                       */
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/* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.*/
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/*                                                                           */
/* Based on SCIP - Solving Constraint Integer Programs                       */
/* Copyright (C) 2002-2020 Zuse Institute Berlin                             */
/* SCIP is distributed under the terms of the SCIP Academic Licence,         */
/* see file COPYING in the SCIP distribution.                                */
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#ifndef __SCIP_OBJREADER_SDPA_H__
#define __SCIP_OBJREADER_SDPA_H__

#include <utility>                      // for pair
#include <vector>                       // for vector

#include "objscip/objreader.h"          // for ObjReader
#include "scip/scip.h"

namespace scip
{
   struct LProw
   {
      std::vector< std::pair<int, SCIP_Real> > data;
   };

   class SDPBlock
   {
   public:
      SDPBlock(int size) : blocksize(size), num_nonzeros(0), constnum_nonzeros(0) { }
      ~SDPBlock() {}

      int blocksize;
      int num_nonzeros;
      std::vector<int> variables;
      std::vector<int> columns;
      std::vector<int> rows;
      std::vector<SCIP_Real> values;

      std::vector<int> constcolumns;
      std::vector<int> constrows;
      std::vector<SCIP_Real> constvalues;
      int constnum_nonzeros;
   };

   class LPBlock
   {
   public:
      LPBlock(): numrows(0) { }
      ~LPBlock() {}

      int numrows;
      std::vector<LProw> rows;
   };

   class ObjReaderSDPA : public ObjReader
   {
   public:

      ObjReaderSDPA(SCIP* scip)
      : ObjReader(scip, "sdpareader", "file reader for SDPA files", "dat-s")
      {}

      virtual ~ObjReaderSDPA()
      {}

      virtual SCIP_DECL_READERREAD(scip_read);

   };

} /* namespace scip */


#endif