std::chrono::local_info

 

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std::chrono::local_info

Non-member functions

operator<<

Helper classes

formatter<std::chrono::local_info>

 

Defined in header <chrono>
struct local_info;		(since C++20)

The class local_info describes the result of converting a std::chrono::local_time to a std::chrono::sys_time.

• If the result of the conversion is unique, then result == local_info::unique, first is filled out with the correct std::chrono::sys_info, and second is zero-initialized.
• If the local_time is nonexistent, then result == local_info::nonexistent, first is filled out with the std::chrono::sys_info that ends just prior to the local_time, and second is filled out with the std::chrono::sys_info that begins just after the local_time.
• If the local_time is ambiguous, then result == local_info::ambiguous, first is filled out with the std::chrono::sys_info that ends just after the local_time, and second is filled with the std::chrono::sys_info that starts just before the local_time.

This is a low-level data structure; typical conversions from local_time to sys_time will use it implicitly rather than explicitly.

Member constants

Name	Value
constexpr int unique [static]	0 (public static member constant)
constexpr int nonexistent [static]	1 (public static member constant)
constexpr int ambiguous [static]	2 (public static member constant)

Member objects

Member object	Type
result	int
first, second	std::chrono::sys_info

Nonmember functions

operator<< (C++20)

outputs a local_info into a stream (function template)

Helper classes

std::formatter<std::chrono::local_info> (C++20)

specialization of std::formatter that formats a local_info according to the provided format (class template specialization)