RTOpPack_TOpSetElement.hpp

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00003 // 
00004 // RTOp: Interfaces and Support Software for Vector Reduction Transformation
00005 //       Operations
00006 //                Copyright (2006) Sandia Corporation
00007 // 
00008 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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00010 // 
00011 // This library is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Lesser General Public License as
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00029 
00030 #ifndef RTOPPACK_TOP_SET_ELEMENT_HPP
00031 #define RTOPPACK_TOP_SET_ELEMENT_HPP
00032 
00033 #include "RTOpPack_RTOpTHelpers.hpp"
00034 #include "Teuchos_as.hpp"
00035 
00036 
00037 namespace RTOpPack {
00038 
00039 
00041 template<class Scalar>
00042 class TOpSetElementEleWiseTransformation
00043 {
00044 public:
00046   TOpSetElementEleWiseTransformation( const Ordinal &global_i_in = -1,
00047     const Scalar &val_i_in = static_cast<Scalar>(0.0) )
00048     :global_i_(global_i_in), val_i_(val_i_in)
00049     {}
00051   Ordinal global_i() const
00052     {
00053       return global_i_;
00054     }
00056   void operator()( const Ordinal global_i_in, Scalar &z0 ) const
00057     {
00058       if (global_i_in == global_i_) {
00059         z0 = val_i_;
00060       }
00061     }
00062 private:
00063   Ordinal global_i_;
00064   Scalar val_i_;
00065 };
00066 
00067 
00070 template<class Scalar>
00071 class TOpSetElement
00072   : public TOp_0_1_CoordVariantBase<Scalar, TOpSetElementEleWiseTransformation<Scalar> >
00073 {
00074 public:
00076   TOpSetElement(const Ordinal &global_i_in = -1,
00077     const Scalar &val_i_in = static_cast<Scalar>(0.0))
00078     {
00079       this->setOpNameBase("TOpSetElement");
00080       this->setEleWiseTransformation(
00081         TOpSetElementEleWiseTransformation<Scalar>(global_i_in, val_i_in));
00082     }
00084   void initialize(const Ordinal &global_i_in, const Scalar &val_i_in)
00085     { 
00086       this->setEleWiseTransformation(
00087         TOpSetElementEleWiseTransformation<Scalar>(global_i_in, val_i_in));
00088     }
00089 protected:
00091   virtual Range1D range_impl() const
00092     {
00093       const Ordinal i = this->getEleWiseTransformation().global_i();
00094       return Range1D(i, i);
00095     }
00096 };
00097 
00098 
00099 } // namespace RTOpPack
00100 
00101 
00102 #endif // RTOPPACK_TOP_SET_ELEMENT_HPP
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