std::chrono::weekday::c_encoding, std::chrono::weekday::iso_encoding
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std::chrono::weekday
Member functions
weekday::c_encodingweekday::iso_encoding
Nonmember functions
Helper classes
(C++26)
constexpr unsigned c_encoding() const noexcept;
(1)
(since C++20)
constexpr unsigned iso_encoding() const noexcept;
(2)
(since C++20)
1) Returns the weekday value stored in *this.
2) Returns the weekday value stored in *this, except that Sunday (stored as 0) is interpreted as 7 according to ISO 8601.
[edit] Return value
1) The weekday value stored in *this.
2) c_encoding() == 0u ? 7u : c_encoding()
[edit] Example
Run this code
#include <chrono> #include <iostream> int main() { std::cout << "i: C: ISO: Weekday:\n"; for (unsigned i{0}; i != 8; ++i) { const std::chrono::weekday w{i}; std::cout << i << " " << w.c_encoding() << " " << w.iso_encoding() << " " << w << '\n'; } }
Output:
i: C: ISO: Weekday: 0 0 7 Sun 1 1 1 Mon 2 2 2 Tue 3 3 3 Wed 4 4 4 Thu 5 5 5 Fri 6 6 6 Sat 7 0 7 Sun