30 const double end_time)
34 double next_time = current_time +
step_size;
35 constexpr double relative_tolerance = 0.05;
46 const double end_time,
48 : start_time{start_time}
50 , current_time{start_time}
54 , previous_time{start_time}
55 , start_step_size{next_time - start_time}
73 ExcMessage(
"Only positive time step size is allowed."));
78 "Time step size is too large. The next time cannot exceed the end time."));
88 "Either dt==0 or you are at the "
89 "end of the simulation time."));
double get_next_step_size() const
void set_desired_next_step_size(const double time_step_size)
std::size_t memory_consumption() const
void set_next_step_size(const double time_step_size)
DiscreteTime(const double start_time, const double end_time, const double desired_start_step_size=0.)
#define DEAL_II_NAMESPACE_OPEN
#define DEAL_II_NAMESPACE_CLOSE
#define Assert(cond, exc)
static ::ExceptionBase & ExcInternalError()
static ::ExceptionBase & ExcMessage(std::string arg1)
std::enable_if_t< std::is_fundamental_v< T >, std::size_t > memory_consumption(const T &t)