//===----------------------------------------------------------------------===// // // The LLVM Compiler Infrastructure // // This file is dual licensed under the MIT and the University of Illinois Open // Source Licenses. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// // <system_error> // class error_code // explicit operator bool() const; #include <system_error> #include <string> #include <cassert> int main() { { const std::error_code ec(6, std::generic_category()); assert(static_cast<bool>(ec)); } { const std::error_code ec(0, std::generic_category()); assert(!static_cast<bool>(ec)); } }