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AbstractLinAlgPack_SpVectorOp.hpp
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00003 // 
00004 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
00005 //                  Copyright (2003) Sandia Corporation
00006 // 
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00011 // it under the terms of the GNU Lesser General Public License as
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00028 
00029 #ifndef SP_VECTOR_OP_H
00030 #define SP_VECTOR_OP_H
00031 
00032 #include "AbstractLinAlgPack_SparseVectorSliceOp.hpp"
00033 #include "AbstractLinAlgPack_SparseElement.hpp"
00034 
00035 namespace AbstractLinAlgPack {
00036 
00048 void add_elements( SpVector* sv_lhs, value_type alpha, const DVectorSlice& vs_rhs
00049            , size_type offset = 0, bool add_zeros = true );
00050 
00063 void add_elements( SpVector* sv_lhs, value_type alpha, const SpVectorSlice& sv_rhs
00064            , size_type offset = 0, bool add_zeros = true );
00065 
00066 inline
00076 DVectorSlice dense_view( SpVectorSlice& sv_rhs );
00077 
00078 inline
00080 const DVectorSlice dense_view( const SpVectorSlice& sv_rhs );
00081 
00082 } // end namespace AbstractLinAlgPack
00083 
00084 // /////////////////////////////////////////
00085 // Inline function definitions
00086 
00087 inline
00088 DenseLinAlgPack::DVectorSlice
00089 AbstractLinAlgPack::dense_view( SpVectorSlice& sv_rhs )
00090 {
00091   return sv_rhs.nz()
00092     ? DVectorSlice( &sv_rhs.begin()->value(), sv_rhs.nz(), 2 )
00093     : DVectorSlice( NULL, 0, 0 );
00094 }
00095 
00096 inline
00097 const DenseLinAlgPack::DVectorSlice
00098 AbstractLinAlgPack::dense_view( const SpVectorSlice& sv_rhs )
00099 {
00100   return sv_rhs.nz()
00101     ? DVectorSlice( &const_cast<SpVectorSlice&>(sv_rhs).begin()->value(), sv_rhs.nz(), 2 )
00102     : DVectorSlice( NULL, 0, 0 );
00103 }
00104 
00105 #endif // SP_VECTOR_CLASS_H
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