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 // <system_error> 10 11 // class error_code 12 13 // explicit operator bool() const; 14 15 #include <system_error> 16 #include <cassert> 17 #include <string> 18 #include <type_traits> 19 20 #include "test_macros.h" 21 main(int,char **)22int main(int, char**) 23 { 24 static_assert(std::is_constructible<bool, std::error_code>::value, ""); 25 static_assert(!std::is_convertible<std::error_code, bool>::value, ""); 26 27 { 28 const std::error_code ec(6, std::generic_category()); 29 assert(static_cast<bool>(ec)); 30 } 31 { 32 const std::error_code ec(0, std::generic_category()); 33 assert(!static_cast<bool>(ec)); 34 } 35 36 return 0; 37 } 38