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_drovector-_dgematrix.hpp File Reference

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Functions

_drovector operator* (const _drovector &vec, const _dgematrix &mat)
 

Function Documentation

_drovector operator* ( const _drovector vec,
const _dgematrix mat 
)
inline

_drovector*_dgematrix operator

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

References _(), _dgematrix::array, _drovector::array, drovector::array, _dgematrix::destroy(), _drovector::destroy(), _drovector::l, _dgematrix::m, and _dgematrix::n.

4 {CPPL_VERBOSE_REPORT;
5 #ifdef CPPL_DEBUG
6  if(vec.l!=mat.m){
7  ERROR_REPORT;
8  std::cerr << "These vector and matrix can not make a product." << std::endl
9  << "Your input was (" << vec.l << ") * (" << mat.m << "x" << mat.n << ")." << std::endl;
10  exit(1);
11  }
12 #endif//CPPL_DEBUG
13 
14  drovector newvec(mat.n);
15  char trans ='T';
16  double alpha =1.;
17  CPPL_INT inc =1;
18  double beta =0.;
19 
20  dgemv_( &trans, &mat.m, &mat.n, &alpha, mat.array, &mat.m, vec.array, &inc, &beta, newvec.array, &inc );
21 
22  vec.destroy();
23  mat.destroy();
24  return _(newvec);
25 }
double * array
1D array to store vector data
Definition: _drovector.hpp:11
CPPL_INT l
vector size
Definition: _drovector.hpp:9
void destroy() const
Real Double-precision Row Vector Class.
Definition: drovector.hpp:3
CPPL_INT m
matrix row size
Definition: _dgematrix.hpp:9
double * array
1D array to store matrix data
Definition: _dgematrix.hpp:11
CPPL_INT n
matrix column size
Definition: _dgematrix.hpp:10
void destroy() const
_dcovector _(dcovector &vec)