std::chrono::minutes* offset = nullptr ); (C++20 起) 尝试按照格式字符串 fmt 分析输入流 is 到时间点 tp 中。 表现为无格式输入函数,但它在 is.gcount() 上拥有未指定的效果。在构造并检查 sentry 对象后,尝试按照格式字符串 fmt 分析输入流 is 到tp 中。若分析无法解码出合法的时间点,则调用 is...
With C++20 we can format all the std::chrono types using std::format, e.g., the following program #include <iostream> #include <chrono> #include <format> int main() { std::chrono::utc_time<std::chrono::nanoseconds> ts = std::chrono::utc_...
struct formatter<std::chrono::utc_time<Duration>, CharT>; (since C++20) Specialization of std::formatter that defines formatting rules for a std::chrono::utc_time. If %Z is used, it is replaced with "UTC" widened to CharT. If %z or a modified variant thereof is used, an offset ...
utc_clock::from_sys Time point I/O operator<< formatter<std::chrono::utc_time> from_stream Leap second insertion information leap_second_info get_leap_second_info template< class CharT, class Traits, class Duration, class Alloc = std::allocator<CharT> > std::basic_istream<CharT, Traits>...