// Copyright (c) 1997-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include "StdFail_NotDone.hxx"
#include "math_Vector.hxx"

inline bool math_Powell::IsSolutionReached(math_MultipleVarFunction&)
{
  return 2.0 * fabs(PreviousMinimum - TheMinimum)
         <= XTol * (fabs(PreviousMinimum) + fabs(TheMinimum) + EPSZ);
}

inline bool math_Powell::IsDone() const
{
  return Done;
}

inline Standard_OStream& operator<<(Standard_OStream& o, const math_Powell& P)
{
  P.Dump(o);
  return o;
}

inline const math_Vector& math_Powell::Location() const
{
  StdFail_NotDone_Raise_if(!Done, " ");
  return TheLocation;
}

inline void math_Powell::Location(math_Vector& Loc) const
{
  StdFail_NotDone_Raise_if(!Done, " ");
  Loc = TheLocation;
}

inline double math_Powell::Minimum() const
{
  StdFail_NotDone_Raise_if(!Done, " ");
  return TheMinimum;
}

inline int math_Powell::NbIterations() const
{
  StdFail_NotDone_Raise_if(!Done, " ");
  return Iter;
}