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_category 13 14 // virtual bool equivalent(const error_code& code, int condition) const; 15 16 #include <system_error> 17 #include <cassert> 18 main()19int main() 20 { 21 const std::error_category& e_cat = std::generic_category(); 22 assert(e_cat.equivalent(std::error_code(5, e_cat), 5)); 23 assert(!e_cat.equivalent(std::error_code(5, e_cat), 6)); 24 } 25