text: //===----------------------------------------------------------------------===//
  //
  //                     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 bool equivalent(const error_code& code, int condition) const;
  
  #include <system_error>
  #include <cassert>
  
  int main()
  {
      const std::error_category& e_cat = std::generic_category();
      assert(e_cat.equivalent(std::error_code(5, e_cat), 5));
      assert(!e_cat.equivalent(std::error_code(5, e_cat), 6));
  }
  