std::chrono::weekday::operator[]
From cppreference.com
constexpr std::chrono::weekday_indexed operator[](unsigned index) const noexcept; |
(1) | (since C++20) |
constexpr std::chrono::weekday_last operator[](std::chrono::last_spec) const noexcept; |
(2) | (since C++20) |
1) Constructs a
weekday_indexed
from *this
and index
. The result represents the index
-th weekday in some yet-to-be-specified month. If index
is not in the range [1, 5] or if !ok() the values held in the result is unspecified.2) Constructs a
weekday_last
from *this
. The result represents the last weekday in some yet-to-be-specified month.Return value
1) std::chrono::weekday_indexed(*this, index)
2) std::chrono::weekday_last(*this)
Example
Run this code
#include <chrono> #include <iostream> using namespace std::chrono; int main() { // second tuesday in October 2019 std::cout << year_month_day{ Tuesday[2] / October / 2019y } << '\n' // last tuesday in October 2019 << year_month_day{ Tuesday[last] / October / 2019y } << '\n'; }
Output:
2019-10-08 2019-10-29