| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| // UNSUPPORTED: no-localization |
| // UNSUPPORTED: GCC-ALWAYS_INLINE-FIXME |
| |
| // TODO FMT This test should not require std::to_chars(floating-point) |
| // XFAIL: availability-fp_to_chars-missing |
| |
| // <chrono> |
| |
| // class system_clock; |
| |
| // template<class charT, class traits, class Duration> |
| // basic_ostream<charT, traits>& |
| // operator<<(basic_ostream<charT, traits>& os, const local_time<Duration>& tp); |
| |
| // The function uses the system_clock which has two overloads |
| |
| // template<class charT, class traits, class Duration> |
| // basic_ostream<charT, traits>& |
| // operator<<(basic_ostream<charT, traits>& os, const sys_time<Duration>& tp); |
| // Constraints: treat_as_floating_point_v<typename Duration::rep> is false, and Duration{1} < days{1} is true. |
| |
| // template<class charT, class traits> |
| // basic_ostream<charT, traits>& |
| // operator<<(basic_ostream<charT, traits>& os, const sys_days& dp); |
| |
| // Note local_time's operator<< is specified a |
| // Effects: os << sys_time<Duration>{lt.time_since_epoch()}; |
| // since it uses Effects and not Effects: Equivalent to the constrains of |
| // sys_time do not apply to this operator. This means it's not possible to use |
| // a SFINAE test. |
| |
| #include <chrono> |
| #include <ratio> |
| #include <sstream> |
| #include <type_traits> |
| |
| void test() { |
| std::stringstream sstr; |
| |
| // floating-point values |
| |
| sstr << // expected-error@*:* {{invalid operands to binary expression}} |
| std::chrono::local_time<std::chrono::duration<float, std::ratio<1, 1>>>{ |
| std::chrono::duration<float, std::ratio<1, 1>>{0}}; |
| |
| sstr << // expected-error@*:* {{invalid operands to binary expression}} |
| std::chrono::local_time<std::chrono::duration<double, std::ratio<1, 1>>>{ |
| std::chrono::duration<double, std::ratio<1, 1>>{0}}; |
| |
| sstr << // expected-error@*:* {{invalid operands to binary expression}} |
| std::chrono::local_time<std::chrono::duration<long double, std::ratio<1, 1>>>{ |
| std::chrono::duration<long double, std::ratio<1, 1>>{0}}; |
| |
| // duration >= day |
| |
| sstr << // valid since day has its own formatter |
| std::chrono::local_days{std::chrono::days{0}}; |
| |
| using rep = std::conditional_t<std::is_same_v<std::chrono::days::rep, int>, long, int>; |
| sstr << // a different rep does not matter, |
| std::chrono::local_time<std::chrono::duration<rep, std::ratio<86400>>>{ |
| std::chrono::duration<rep, std::ratio<86400>>{0}}; |
| |
| sstr << // expected-error@*:* {{invalid operands to binary expression}} |
| std::chrono::local_time<std::chrono::duration<typename std::chrono::days::rep, std::ratio<86401>>>{ |
| std::chrono::duration<typename std::chrono::days::rep, std::ratio<86401>>{0}}; |
| |
| sstr << // These are considered days. |
| std::chrono::local_time<std::chrono::weeks>{std::chrono::weeks{3}}; |
| |
| sstr << // These too. |
| std::chrono::local_time<std::chrono::duration<rep, std::ratio<20 * 86400>>>{ |
| std::chrono::duration<rep, std::ratio<20 * 86400>>{0}}; |
| |
| sstr << // expected-error@*:* {{invalid operands to binary expression}} |
| std::chrono::local_time<std::chrono::months>{std::chrono::months{0}}; |
| |
| sstr << // expected-error@*:* {{invalid operands to binary expression}} |
| std::chrono::local_time<std::chrono::years>{std::chrono::years{0}}; |
| } |