FreeBSD Manual Pages
std::chrono::year::ok(3) C++ Standard Libary std::chrono::year::ok(3) NAME std::chrono::year::ok - std::chrono::year::ok Synopsis constexpr bool ok() const noexcept; (since C++20) Checks if the year value stored in *this is in the valid range, i.e., [-32767, 32767]. Return value true if the year value stored in *this is in the range [-32767, 32767]. Otherwise false. Possible implementation See the implementations in libstdc++, libc++, and Howard Hinnant's date.h. class Year { short year_; // exposition-only public: bool ok() const noexcept { return year_ != std::numeric_lim- its<short>::min(); } /*...*/ }; Example // Run this code #include <chrono> #include <iomanip> #include <iostream> int main() { std::cout << "input year internal value ok()\n" << std::boolal- pha; for (const int i : {2020, 0x8000, 0x8001, 0xFFFF, 0x18000}) { const std::chrono::year y{i}; std::cout << std::setw(10) << i << " " << std::setw(14) << static_cast<int>(y) << " " << y.ok() << '\n'; } } Possible output: input year internal value ok() 2020 2020 true 32768 -32768 false 32769 -32767 true 65535 -1 true 98304 -32768 false http://cppreference.com 2024.06.10 std::chrono::year::ok(3)
NAME | Synopsis | Return value | Possible implementation | Example | Possible output:
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=std::chrono::year::ok&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>