IGES timestamp.
public time_point
using duration = clock::duration
using time_point = clock::time_point
using clock = std::chrono::system_clock
print() const -> iges_date_pp
empty() const -> bool
clear() -> void
operator=(const time_point & rhs) -> timestamp &
timestamp(const time_point & tp)
~timestamp()
timestamp()
operator<<(std::ostream & out, const timestamp::iges_date_pp & rhs) -> std::ostream &
operator<<(iges_ostream & out, const timestamp & rhs) -> iges_ostream &
operator>>(std::istream & in, timestamp & rhs) -> std::istream &
operator<<(std::ostream & out, const timestamp & rhs) -> std::ostream &