consistency.pass.cpp (1511B)
1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // UNSUPPORTED: libcpp-has-no-monotonic-clock 11 12 // Due to C++17 inline variables ASAN flags this test as containing an ODR 13 // violation because Clock::is_steady is defined in both the dylib and this TU. 14 // UNSUPPORTED: asan 15 16 // Starting with C++17, Clock::is_steady is inlined (but not before LLVM-3.9!), 17 // but before C++17 it requires the symbol to be present in the dylib, which 18 // is only shipped starting with macosx10.9. 19 // XFAIL: with_system_cxx_lib=macosx10.7 && (c++98 || c++03 || c++11 || c++14 || apple-clang-7 || apple-clang-8.0) 20 // XFAIL: with_system_cxx_lib=macosx10.8 && (c++98 || c++03 || c++11 || c++14 || apple-clang-7 || apple-clang-8.0) 21 22 // <chrono> 23 24 // steady_clock 25 26 // check clock invariants 27 28 #include <chrono> 29 30 template <class T> 31 void test(const T &) {} 32 33 int main() 34 { 35 typedef std::chrono::steady_clock C; 36 static_assert((std::is_same<C::rep, C::duration::rep>::value), ""); 37 static_assert((std::is_same<C::period, C::duration::period>::value), ""); 38 static_assert((std::is_same<C::duration, C::time_point::duration>::value), ""); 39 static_assert(C::is_steady, ""); 40 test(std::chrono::steady_clock::is_steady); 41 }