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 // <system_error> 11 12 // class error_code 13 14 // explicit operator bool() const; 15 16 #include <system_error> 17 #include <string> 18 #include <cassert> 19 main()20int main() 21 { 22 { 23 const std::error_code ec(6, std::generic_category()); 24 assert(static_cast<bool>(ec)); 25 } 26 { 27 const std::error_code ec(0, std::generic_category()); 28 assert(!static_cast<bool>(ec)); 29 } 30 } 31