//===----------------------------------------------------------------------===// // // 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 // int value() const; #include <system_error> #include <cassert> int main() { const std::error_code ec(6, std::system_category()); assert(ec.value() == 6); }