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drovector-_dgbmatrix.hpp File Reference

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Functions

_drovector operator* (const drovector &vec, const _dgbmatrix &mat)

Function Documentation

_drovector operator* ( const drovector vec,
const _dgbmatrix mat 
) [inline]

drovector*_dgbmatrix operator

Definition at line 3 of file drovector-_dgbmatrix.hpp.

References _(), drovector::array, _dgbmatrix::array, _dgbmatrix::destroy(), _dgbmatrix::kl, _dgbmatrix::ku, drovector::l, _dgbmatrix::m, and _dgbmatrix::n.

{VERBOSE_REPORT;
#ifdef  CPPL_DEBUG
  if(vec.l!=mat.m){
    ERROR_REPORT;
    std::cerr << "These vector and matrix can not make a product." << std::endl
              << "Your input was (" << vec.l << ") * (" << mat.m << "x" << mat.n << ")." << std::endl;
    exit(1);
  }
#endif//CPPL_DEBUG
  
  drovector newvec(mat.n);
  dgbmv_( 'T', mat.m, mat.n, mat.kl, mat.ku, 1.0,
          mat.array, mat.kl+mat.ku+1, vec.array, 1, 0.0, newvec.array, 1 );
  
  mat.destroy();
  return _(newvec);
}
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