CPPLapack Code

//=============================================================================
//! Samll Real Double-precision Column Vector Class
template<long l> class dcovector_small
{
public:
  //////// data ////////
  double array[l];
  
  //////// constructor ////////
  dcovector_small(){;}
  dcovector_small(const double& x){
    for(long k=0; k<l; k++){ array[k]=x; }
  }
  dcovector_small(const double& x, const double& y, const double& z){
    array[0]=x; array[1]=y; array[2]=z;
  }
  ~dcovector_small(){;}
  
  //////// function ////////
  double& operator()(const long& k);
  double  operator()(const long& k) const;
  //long get_m(){ return n; }
  //long get_n(){ return n; }
  void zero(){ for(long k=0; k<l; k++){array[k]=0.;} }
  dcovector_small<l>& set(const long& k, const double& v){ (*this)(k)=v; return *this; }
  _dcovector to_dcovector()const{
    dcovector vec(l);
    for(long k=0; k<l; k++){
      vec(k)=(*this)(k);
    }
    return _(vec);
  }
};