_dgematrix-dssmatrix.hpp File Reference

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Functions
_dgematrix	operator* (const _dgematrix &matA, const dssmatrix &matB)

Function Documentation

_dgematrix operator* ( const _dgematrix &  matA, const dssmatrix &  matB  )

inline

_dgematrix*dssmatrix operator

Definition at line 3 of file _dgematrix-dssmatrix.hpp.

References _(), dssmatrix::data, _dgematrix::destroy(), i(), _dgematrix::i, dssmatrix::m, _dgematrix::m, _dgematrix::n, dssmatrix::n, and dgematrix::zero().

{CPPL_VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(matA.n!=matB.m){
    ERROR_REPORT;
    std::cerr << "These two matrises can not make a product." << std::endl
              << "Your input was (" << matA.m << "x" << matA.n << ") * (" << matB.m << "x" << matB.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  dgematrix newmat(matA.m, matB.n);
  newmat.zero();
  
  const std::vector<dcomponent>::const_iterator matB_data_end =matB.data.end();
  for(std::vector<dcomponent>::const_iterator it=matB.data.begin(); it!=matB_data_end; it++){
    for(CPPL_INT i=0; i<matA.m; i++){
      newmat(i,it->j) +=matA(i,it->i)*it->v;
    }
    if(it->i!=it->j){
      for(CPPL_INT i=0; i<matA.m; i++){
        newmat(i,it->i) +=matA(i,it->j)*it->v;
      }
    }
  }
  
  matA.destroy();
  return _(newmat);
}