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 <string> 17 #include <cassert> 18 19 int main() 20 { 21 { 22 const std::error_code ec(6, std::generic_category()); 23 assert(static_cast<bool>(ec)); 24 } 25 { 26 const std::error_code ec(0, std::generic_category()); 27 assert(!static_cast<bool>(ec)); 28 } 29 } 30