std::chrono::month

 

C++

Compiler support

Freestanding and hosted

Language

Standard library

Standard library headers

Named requirements

Feature test macros(C++20)

Language support library

Concepts library(C++20)

Diagnostics library

Memory management library

Metaprogramming library(C++11)

General utilities library

Containers library

Iterators library

Ranges library(C++20)

Algorithms library

Strings library

Text processing library

Numerics library

Date and time library

Input/output library

Filesystem library(C++17)

Concurrency support library(C++11)

Execution control library(C++26)

Technical specifications

Symbols index

External libraries

 

Date and time library

Time point time_point (C++11) clock_time_conversion (C++20)   clock_cast (C++20) Duration duration (C++11) Clocks system_clock (C++11) steady_clock (C++11) is_clock (C++20) utc_clock (C++20) tai_clock (C++20) high_resolution_clock (C++11) gps_clock (C++20) file_clock (C++20) local_t (C++20) Time of day is_amis_pm (C++20)(C++20) make12make24 (C++20)(C++20) hh_mm_ss (C++20)

Calendar day (C++20) month (C++20) year (C++20) weekday (C++20) operator/ (C++20) year_month_day (C++20) year_month_day_last (C++20) year_month_weekday (C++20) year_month_weekday_last (C++20)   weekday_indexed (C++20) weekday_last (C++20) month_day (C++20) month_day_last (C++20) month_weekday (C++20) month_weekday_last (C++20) year_month (C++20) last_speclast (C++20)(C++20) chrono I/O parse (C++20)

Time zone tzdb (C++20) tzdb_list (C++20) get_tzdbget_tzdb_listreload_tzdbremote_version (C++20)(C++20)(C++20)(C++20) sys_info (C++20) local_info (C++20) nonexistent_local_time (C++20) ambiguous_local_time (C++20) locate_zone (C++20) current_zone (C++20) time_zone (C++20) choose (C++20) zoned_traits (C++20) zoned_time (C++20) time_zone_link (C++20) leap_second (C++20) leap_second_info (C++20) get_leap_second_info (C++20) C-style date and time

 

std::chrono::month

Member functions

month::month

month::operator++month::operator--

month::operator+=month::operator-=

month::operator unsigned

month::ok

Nonmember functions

operator==operator<=>

operator+operator-

operator<<

from_stream

Helper classes

formatter<std::chrono::month>

hash<std::chrono::month> (C++26)

 

Defined in header <chrono>
class month;		(since C++20)
inlineconstexpr std::chrono::month January{1};		(since C++20)
inlineconstexpr std::chrono::month February{2};		(since C++20)
inlineconstexpr std::chrono::month March{3};		(since C++20)
inlineconstexpr std::chrono::month April{4};		(since C++20)
inlineconstexpr std::chrono::month May{5};		(since C++20)
inlineconstexpr std::chrono::month June{6};		(since C++20)
inlineconstexpr std::chrono::month July{7};		(since C++20)
inlineconstexpr std::chrono::month August{8};		(since C++20)
inlineconstexpr std::chrono::month September{9};		(since C++20)
inlineconstexpr std::chrono::month October{10};		(since C++20)
inlineconstexpr std::chrono::month November{11};		(since C++20)
inlineconstexpr std::chrono::month December{12};		(since C++20)

The class month represents a month in a year. Its normal range is [1, 12], but it may hold any number in [​0​, 255]. Twelve named constants are predefined in the std::chrono namespace for the twelve months of the year.

month is a TriviallyCopyableStandardLayoutType.

Member functions

(constructor)	constructs a month (public member function)
operator++operator++(int)operator--operator--(int)	increments or decrements the month (public member function)
operator+=operator-=	adds or subtracts a number of months (public member function)
operator unsigned	retrieves the stored month value (public member function)
ok	checks if the stored month value is in the normal range (public member function)

Nonmember functions

operator==operator<=> (C++20)	compares two month values (function)
operator+operator- (C++20)	performs arithmetic on months (function)
operator<< (C++20)	outputs a month into a stream (function template)
from_stream (C++20)	parses a month from a stream according to the provided format (function template)

Helper classes

std::formatter<std::chrono::month> (C++20)	formatting support for month (class template specialization)
std::hash<std::chrono::month> (C++26)	hash support for std::chrono::month (class template specialization)