libcxx/test/std/thread/futures/futures.future_error/code.pass.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // UNSUPPORTED: libcpp-has-no-threads
  10
  11 // <future>
  12
  13 // class future_error
  14 //     future_error(error_code __ec);  // exposition only
  15 //     explicit future_error(future_errc _Ev) : __ec_(make_error_code(_Ev)) {} // C++17
  16
  17 // const error_code& code() const throw();
  18
  19 #include <future>
  20 #include <cassert>
  21
  22 #include "test_macros.h"
  23
  24 int main(int, char**)
  25 {
  26     {
  27         std::error_code ec = std::make_error_code(std::future_errc::broken_promise);
  28         std::future_error f(ec);
  29         assert(f.code() == ec);
  30     }
  31     {
  32         std::error_code ec = std::make_error_code(std::future_errc::future_already_retrieved);
  33         std::future_error f(ec);
  34         assert(f.code() == ec);
  35     }
  36     {
  37         std::error_code ec = std::make_error_code(std::future_errc::promise_already_satisfied);
  38         std::future_error f(ec);
  39         assert(f.code() == ec);
  40     }
  41     {
  42         std::error_code ec = std::make_error_code(std::future_errc::no_state);
  43         std::future_error f(ec);
  44         assert(f.code() == ec);
  45     }
  46 #if TEST_STD_VER > 14
  47     {
  48         std::future_error f(std::future_errc::broken_promise);
  49         assert(f.code() == std::make_error_code(std::future_errc::broken_promise));
  50     }
  51     {
  52         std::future_error f(std::future_errc::no_state);
  53         assert(f.code() == std::make_error_code(std::future_errc::no_state));
  54     }
  55 #endif
  56
  57   return 0;
  58 }