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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 // <tuple>
     11 
     12 // template <class... Types> class tuple;
     13 
     14 // template <class Alloc, class... UTypes>
     15 //   tuple(allocator_arg_t, const Alloc& a, UTypes&&...);
     16 
     17 #include <tuple>
     18 #include <cassert>
     19 
     20 #include "../MoveOnly.h"
     21 #include "allocators.h"
     22 #include "../alloc_first.h"
     23 #include "../alloc_last.h"
     24 
     25 int main()
     26 {
     27     {
     28         std::tuple<MoveOnly> t(std::allocator_arg, A1<int>(), MoveOnly(0));
     29         assert(std::get<0>(t) == 0);
     30     }
     31     {
     32         std::tuple<MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
     33                                          MoveOnly(0), MoveOnly(1));
     34         assert(std::get<0>(t) == 0);
     35         assert(std::get<1>(t) == 1);
     36     }
     37     {
     38         std::tuple<MoveOnly, MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
     39                                                    MoveOnly(0),
     40                                                    1, 2);
     41         assert(std::get<0>(t) == 0);
     42         assert(std::get<1>(t) == 1);
     43         assert(std::get<2>(t) == 2);
     44     }
     45     {
     46         alloc_first::allocator_constructed = false;
     47         alloc_last::allocator_constructed = false;
     48         std::tuple<int, alloc_first, alloc_last> t(std::allocator_arg,
     49                                                    A1<int>(5), 1, 2, 3);
     50         assert(std::get<0>(t) == 1);
     51         assert(alloc_first::allocator_constructed);
     52         assert(std::get<1>(t) == alloc_first(2));
     53         assert(alloc_last::allocator_constructed);
     54         assert(std::get<2>(t) == alloc_last(3));
     55     }
     56     // extensions
     57     {
     58         std::tuple<MoveOnly, MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
     59                                                    0, 1);
     60         assert(std::get<0>(t) == 0);
     61         assert(std::get<1>(t) == 1);
     62         assert(std::get<2>(t) == MoveOnly());
     63     }
     64     {
     65         std::tuple<MoveOnly, MoveOnly, MoveOnly> t(std::allocator_arg, A1<int>(),
     66                                                    0);
     67         assert(std::get<0>(t) == 0);
     68         assert(std::get<1>(t) == MoveOnly());
     69         assert(std::get<2>(t) == MoveOnly());
     70     }
     71 }
     72