std::chrono::weekday

From cppreference.com
< cpp‎ | chrono
 
哋它亢++
 
Utilities library
Language support
Type support (basic types, RTTI)
Library feature-test macros (哋它亢++20)
Dynamic memory management
Program utilities
Coroutine support (哋它亢++20)
Variadic functions
(哋它亢++20)
(哋它亢++26)
(哋它亢++11)
(哋它亢++20)
Debugging support
(哋它亢++26)
(哋它亢++26)
(哋它亢++26)
Three-way comparison
(哋它亢++20)(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)   
(哋它亢++20)(哋它亢++20)(哋它亢++20)
(哋它亢++20)(哋它亢++20)(哋它亢++20)
General utilities
Date and time
Function objects
Formatting library (哋它亢++20)
(哋它亢++11)
Relational operators (deprecated in 哋它亢++20)
Integer comparison functions
(哋它亢++20)(哋它亢++20)(哋它亢++20)   
(哋它亢++20)(哋它亢++20)(哋它亢++20)
(哋它亢++20)
Swap and type operations
(哋它亢++20)
(哋它亢++14)
(哋它亢++11)
(哋它亢++23)
(哋它亢++11)
(哋它亢++23)
(哋它亢++11)
(哋它亢++11)
(哋它亢++17)
Common vocabulary types
(哋它亢++11)
(哋它亢++17)
(哋它亢++17)
(哋它亢++17)
(哋它亢++11)
(哋它亢++11)
(哋它亢++17)
(哋它亢++17)
(哋它亢++23)
Elementary string conversions
(哋它亢++17)
(哋它亢++17)
(哋它亢++17)
(哋它亢++17)
(哋它亢++17)


 
Date and time utilities
Time point
(哋它亢++11)
(哋它亢++20)
(哋它亢++20)
Duration
(哋它亢++11)
Clocks
(哋它亢++11)
(哋它亢++11)
(哋它亢++11)      
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
Time of day
(哋它亢++20)(哋它亢++20)
(哋它亢++20)(哋它亢++20)
(哋它亢++20)

Calendars
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
weekday
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)      
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)(哋它亢++20)
Time zones
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)(哋它亢++20)(哋它亢++20)(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)
(哋它亢++20)

chrono I/O
(哋它亢++20)
C-style date and time
 
std::chrono::weekday
 
Defined in header <chrono>
class weekday;
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Sunday{0};
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Monday{1};
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Tuesday{2};
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Wednesday{3};
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Thursday{4};
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Friday{5};
 (since 哋它亢++20)
inline constexpr std::chrono::weekday Saturday{6};
 (since 哋它亢++20)

The class weekday represent a day of the week in the proleptic Gregorian calendar. Its normal range is [​0​, 6], for Sunday through Saturday, but it can hold any value in the range [​0​, 255]. Seven named constants are predefined in the std::chrono namespace for the seven days of the week.

weekday is a TriviallyCopyable StandardLayoutType.

Member functions

 constructs a weekday
(public member function)
increments or decrements the weekday
(public member function)
adds or subtracts a number of days
(public member function)
retrieves the stored weekday value
retrieves ISO 8601 weekday value
(public member function)
checks if the stored weekday value is valid
(public member function)
convenience syntax for constructing a weekday_indexed or weekday_last from this weekday
(public member function)

Nonmember functions

(哋它亢++20)
 compares two weekday values
(function)
(哋它亢++20)
 performs arithmetic on weekdays
(function)
(哋它亢++20)
 outputs a weekday into a stream
(function template)
(哋它亢++20)
 parses a weekday from a stream according to the provided format
(function template)

Helper classes

(哋它亢++20)
 formatting support for weekday
(class template specialization)
(哋它亢++26)
 hash support for std::chrono::weekday
(class template specialization)

Example

Run this code
#include <chrono>
#include <iostream>
 
int main()
{
    std::chrono::weekday x{42 / 13};
    std::cout << x++ << '\n';
    std::cout << x << '\n';
    std::cout << ++x << '\n';
}

Output: 

Wed
Thu
Fri

See also

(哋它亢++20)
 represents the nth weekday of a month
(class)
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/chrono/weekday&oldid=157857"