std::chrono::weekday::c_encoding, std::chrono::weekday::iso_encoding - cppreference.com (original) (raw)

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

#include #include   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