NAME¶

std::chrono::weekday_indexed::weekday_indexed - std::chrono::weekday_indexed::weekday_indexed

Synopsis¶

weekday_indexed() = default; (1) (since C++20)
constexpr weekday_indexed( const std::chrono::weekday& wd, (2) (since C++20)
unsigned index ) noexcept;

Constructs a weekday_indexed.

1) Default constructor leaves both the std::chrono::weekday and the index value
uninitialized.
2) Constructs a weekday_indexed storing the weekday wd and the index index. The
values held are unspecified if !wd.ok() || index > 7.

Notes¶

A more convenient way to construct a weekday_indexed is with weekday's operator[],
i.e., wd[index].

Example¶

// Run this code

#include <chrono>
#include <iostream>
using namespace std::chrono;

int main()
{
constexpr auto third_friday = weekday_indexed(Friday, 3); // uses constructor (2)
static_assert(third_friday == Friday[3]);

weekday_indexed wdi = Tuesday[2]; // represents the 2nd Tuesday
std::cout << year_month_day{ wdi / October / 2019y } << '\n';
}

Possible output:¶

2019-10-08

See also¶

convenience syntax for constructing a weekday_indexed or weekday_last
operator[] from this weekday
(public member function of std::chrono::weekday)