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      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 // LWG 2056 changed the values of future_errc, so if we're using new headers
     11 // with an old library we'll get incorrect messages.
     12 //
     13 // XFAIL: with_system_lib=x86_64-apple-darwin11
     14 // XFAIL: with_system_lib=x86_64-apple-darwin12
     15 // XFAIL: with_system_lib=x86_64-apple-darwin13
     16 
     17 // <future>
     18 
     19 // class future_error
     20 
     21 // const char* what() const throw();
     22 
     23 #include <future>
     24 #include <cstring>
     25 #include <cassert>
     26 
     27 int main()
     28 {
     29     {
     30         std::future_error f(std::make_error_code(std::future_errc::broken_promise));
     31         assert(std::strcmp(f.what(), "The associated promise has been destructed prior "
     32                       "to the associated state becoming ready.") == 0);
     33     }
     34     {
     35         std::future_error f(std::make_error_code(std::future_errc::future_already_retrieved));
     36         assert(std::strcmp(f.what(), "The future has already been retrieved from "
     37                       "the promise or packaged_task.") == 0);
     38     }
     39     {
     40         std::future_error f(std::make_error_code(std::future_errc::promise_already_satisfied));
     41         assert(std::strcmp(f.what(), "The state of the promise has already been set.") == 0);
     42     }
     43     {
     44         std::future_error f(std::make_error_code(std::future_errc::no_state));
     45         assert(std::strcmp(f.what(), "Operation not permitted on an object without "
     46                       "an associated state.") == 0);
     47     }
     48 }
     49