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dgematrix-_dcovector.hpp File Reference

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Functions

_dcovector operator* (const dgematrix &mat, const _dcovector &vec)
 

Function Documentation

_dcovector operator* ( const dgematrix mat,
const _dcovector vec 
)
inline

dgematrix*_dcovector operator

Definition at line 3 of file dgematrix-_dcovector.hpp.

References _(), dgematrix::array, _dcovector::array, dcovector::array, _dcovector::destroy(), _dcovector::l, dgematrix::m, and dgematrix::n.

4 {CPPL_VERBOSE_REPORT;
5 #ifdef CPPL_DEBUG
6  if(mat.n!=vec.l){
7  ERROR_REPORT;
8  std::cerr << "These matrix and vector can not make a product." << std::endl
9  << "Your input was (" << mat.m << "x" << mat.n << ") * (" << vec.l << ")." << std::endl;
10  exit(1);
11  }
12 #endif//CPPL_DEBUG
13 
14  dcovector newvec(mat.m);
15  char trans ='n';
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  return _(newvec);
24 }
CPPL_INT l
vector size
Definition: _dcovector.hpp:9
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
Real Double-precision Column Vector Class.
Definition: dcovector.hpp:3
double * array
1D array to store vector data
Definition: _dcovector.hpp:11
_dcovector _(dcovector &vec)