1 //===----------------------------------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // UNSUPPORTED: c++03, c++11, c++14, c++17 10 11 // <compare> 12 13 // template<class T> constexpr strong_ordering strong_order(const T& a, const T& b); 14 15 // libc++ does not support strong_order(long double, long double) quite yet. 16 // This test verifies the error message we give for that case. 17 // TODO: remove this test once long double is properly supported. 18 19 #include <compare> 20 21 #include "test_macros.h" 22 23 void f() { 24 long double ld = 3.14; 25 #ifdef TEST_LONG_DOUBLE_IS_DOUBLE 26 (void)ld; // expected-no-diagnostics 27 #else 28 (void)std::strong_order(ld, ld); // expected-error@*:* {{std::strong_order is unimplemented for this floating-point type}} 29 #endif 30 } 31