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std::chrono::weekday_last::weekday_last

From cppreference.com
< cpp‎ | chrono‎ | weekday last
 
 
Date and time library
(C++11)
(C++20)
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(C++20)
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(C++20)(C++20)
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(C++20)

 
 
constexpr explicit weekday_last( const std::chrono::weekday & wd ) noexcept;
(since C++20)

Constructs a weekday_last object storing the weekday wd.

[edit] Notes

A more convenient way to construct a weekday_last is with weekday's operator[], i.e., wd[std::chrono::last ].

[edit] Example

Run this code
#include <chrono>
#include <iostream>
using namespace std::chrono;
 
int main()
{
 const year_month_day ymd{floor<days>(system_clock::now())};
 const weekday_last wdl{Sunday[last]}; // A last Sunday of a month
 const year_month_day last_sun{ymd.year() / ymd.month() / wdl};
 
 std::cout << "The last Sunday of current month falls on "
 << (int)last_sun.year() << '/'
 << (unsigned)last_sun.month() << '/'
 << (unsigned)last_sun.day() << '\n';
}

Possible output:

The last Sunday of current month falls on 2021年9月26日
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