| //===----------------------------------------------------------------------===// |
| // |
| // 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_category |
| |
| // virtual string message(int ev) const = 0; |
| |
| #include <system_error> |
| #include <cassert> |
| #include <string> |
| |
| #include <stdio.h> |
| |
| int main() |
| { |
| const std::error_category& e_cat1 = std::generic_category(); |
| const std::error_category& e_cat2 = std::system_category(); |
| std::string m1 = e_cat1.message(5); |
| std::string m2 = e_cat2.message(5); |
| std::string m3 = e_cat2.message(6); |
| assert(!m1.empty()); |
| assert(!m2.empty()); |
| assert(!m3.empty()); |
| assert(m1 == m2); |
| assert(m1 != m3); |
| } |