39 Source(std::shared_ptr<MshData> _msh,
int no);
40 Source(std::shared_ptr<MshData> _msh, std::string
const &name);
41 virtual ~Source() { std::cout <<
"~Source()\n"; }
42 virtual void apply(
double t, std::vector<double> &u) {}
45 virtual void write(std::ostream &out)
const override;