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
  
  // bool operator<(const error_category& rhs) const;
  
  #include <system_error>
  #include <cassert>
  
  int main()
  {
      const std::error_category& e_cat1 = std::generic_category();
      const std::error_category& e_cat2 = std::generic_category();
      const std::error_category& e_cat3 = std::system_category();
      assert(!(e_cat1 < e_cat2) && !(e_cat2 < e_cat1));
      assert((e_cat1 < e_cat3) || (e_cat3 < e_cat1));
  }
  