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AbstractLinAlgPack_COOMatrixClass.cpp
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1 #if 0
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43 
44 #include <sstream>
45 
49 
50 // Junk, test compilation
51 //#include "MemMngPackDef.h"
52 //MemMngPack::RefCount<double> ref1;
53 
54 //#include "SequentialAllocatorPack.hpp"
55 //template SequentialAllocatorPack::SequentialAllocator<double>;
56 
57 // ///////////////////////////////////////////////////////////////////////////////////
58 // COOMatrix
59 
61 {
62  if(this == &coom) return *this; // assignment to self
63 
64  val_.resize(coom.nz_); // must resize, this is why you can't use default assignment.
65 
66  // Now assign the members(this is what the default would have done).
67  rows_ = coom.rows_;
68  cols_ = coom.cols_;
69  nz_ = coom.nz_;
70  val_ = coom.val_;
71  ivect_ref_ = coom.ivect_ref_;
72  jvect_ref_ = coom.jvect_ref_;
73 
74  return *this;
75 }
76 
78 {
79  // don't resize if you don't have to to presearve row and column access just in case.
80  if(rows == rows_ && cols == cols_ && nz == nz_) return;
81 
82  rows_ = rows;
83  cols_ = cols;
84  nz_ = nz;
85  val_.resize(nz);
86  ivect_ref_.obj().resize(nz);
87  jvect_ref_.obj().resize(nz);
88 }
89 
90 void AbstractLinAlgPack::COOMatrix::initialize(std::istream& istrm) {
91  // Read COO matrix into val, ivect, jvect
92  read_coo_into_valarrays(istrm,rows_,cols_,nz_,val_,ivect_ref_.obj()
93  ,jvect_ref_.obj());
94 }
95 
96 #endif // 0
size_type rows(size_type rows, size_type cols, BLAS_Cpp::Transp _trans)
Return rows of a possible transposed matrix.
void resize(size_type rows, size_type cols, size_type nz)
Resize for a rows# by cols# sparse matrix with nz# elements.
COOMatrix & operator=(const COOMatrix &coom)
Assignment operator.
void read_coo_into_valarrays(std::istream &istrm, size_type &m, size_type &n, size_type &nz, std::valarray< value_type > &a, std::valarray< indice_type > &ivect, std::valarray< indice_type > &jvect)
Read in a Coordinate Matrix from a C++ input stream and store it in valarrays.
Sparse Coordinate Matrix abstraction storage class.
size_type cols(size_type rows, size_type cols, BLAS_Cpp::Transp _trans)
Return columns of a possible transposed matrix.
void initialize(std::istream &istrm)
Initialize from an input stream.