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# /home/coin/SVN-release/Ipopt-3.2.1/Ipopt/src/Algorithm/IpLineSearch.hpp

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    00001 // Copyright (C) 2004, 2006 International Business Machines and others.
    00002 // All Rights Reserved.
    00003 // This code is published under the Common Public License.
    00004 //
    00005 // $Id: IpLineSearch.hpp 759 2006-07-07 03:07:08Z andreasw $
    00006 //
    00007 // Authors:  Carl Laird, Andreas Waechter     IBM    2004-08-13
    00008
    00009 #ifndef __IPLINESEARCH_HPP__
    00010 #define __IPLINESEARCH_HPP__
    00011
    00012 #include "IpAlgStrategy.hpp"
    00013 #include "IpIpoptCalculatedQuantities.hpp"
    00014
    00015 namespace Ipopt
    00016 {
    00017
    00020   class LineSearch : public AlgorithmStrategyObject
    00021   {
    00022   public:
    00026     LineSearch()
    00027     {}
    00028
    00030     virtual ~LineSearch()
    00031     {}
    00033
    00037     virtual void FindAcceptableTrialPoint() = 0;
    00038
    00045     virtual void Reset() = 0;
    00046
    00058     virtual void SetRigorousLineSearch(bool rigorous) = 0;
    00059
    00064     virtual bool CheckSkippedLineSearch() = 0;
    00065
    00074     virtual bool ActivateFallbackMechanism() = 0;
    00075
    00076   private:
    00086     LineSearch(const LineSearch&);
    00087
    00089     void operator=(const LineSearch&);
    00091
    00092   };
    00093
    00094 } // namespace Ipopt
    00095
    00096 #endif