1 // -*- C++ -*- 2 //===----------------------------------------------------------------------===// 3 // 4 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5 // See https://llvm.org/LICENSE.txt for license information. 6 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7 // 8 //===----------------------------------------------------------------------===// 9 10 #ifndef SUPPORT_TEST_CHRONO_LEAP_SECOND_HPP 11 #define SUPPORT_TEST_CHRONO_LEAP_SECOND_HPP 12 13 // Contains helper functions to create a std::chrono::leap_second. 14 // 15 // Since the standard doesn't specify how a @ref std::chrono::leap_second is 16 // constructed this is implementation defined. To make the public API tests of 17 // the class generic this header defines helper functions to create the 18 // required object. 19 // 20 // Note This requires every standard library implementation to write their own 21 // helper function. Vendors are encouraged to create a pull request at 22 // https://github.com/llvm/llvm-project so their specific implementation can be 23 // part of this file. 24 25 #include "test_macros.h" 26 27 #if TEST_STD_VER < 20 28 # error "The format header requires at least C++20" 29 #endif 30 31 #include <chrono> 32 33 #ifdef _LIBCPP_VERSION 34 35 # include <__utility/private_constructor_tag.h> 36 37 inline constexpr std::chrono::leap_second test_leap_second_create(const std::chrono::sys_seconds & date,const std::chrono::seconds & value)38test_leap_second_create(const std::chrono::sys_seconds& date, const std::chrono::seconds& value) { 39 return std::chrono::leap_second{std::__private_constructor_tag{}, date, value}; 40 } 41 42 #else // _LIBCPP_VERSION 43 # error \ 44 "Please create a vendor specific version of the test typedef and file a PR at https://github.com/llvm/llvm-project" 45 #endif // _LIBCPP_VERSION 46 47 #endif // SUPPORT_TEST_CHRONO_LEAP_SECOND_HPP 48