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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>
     15 //   tuple(allocator_arg_t, const Alloc& a, tuple&&);
     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         typedef std::tuple<> T;
     29         T t0;
     30         T t(std::allocator_arg, A1<int>(), std::move(t0));
     31     }
     32     {
     33         typedef std::tuple<MoveOnly> T;
     34         T t0(MoveOnly(0));
     35         T t(std::allocator_arg, A1<int>(), std::move(t0));
     36         assert(std::get<0>(t) == 0);
     37     }
     38     {
     39         typedef std::tuple<alloc_first> T;
     40         T t0(1);
     41         alloc_first::allocator_constructed = false;
     42         T t(std::allocator_arg, A1<int>(5), std::move(t0));
     43         assert(alloc_first::allocator_constructed);
     44         assert(std::get<0>(t) == 1);
     45     }
     46     {
     47         typedef std::tuple<alloc_last> T;
     48         T t0(1);
     49         alloc_last::allocator_constructed = false;
     50         T t(std::allocator_arg, A1<int>(5), std::move(t0));
     51         assert(alloc_last::allocator_constructed);
     52         assert(std::get<0>(t) == 1);
     53     }
     54     {
     55         typedef std::tuple<MoveOnly, alloc_first> T;
     56         T t0(0 ,1);
     57         alloc_first::allocator_constructed = false;
     58         T t(std::allocator_arg, A1<int>(5), std::move(t0));
     59         assert(alloc_first::allocator_constructed);
     60         assert(std::get<0>(t) == 0);
     61         assert(std::get<1>(t) == 1);
     62     }
     63     {
     64         typedef std::tuple<MoveOnly, alloc_first, alloc_last> T;
     65         T t0(1, 2, 3);
     66         alloc_first::allocator_constructed = false;
     67         alloc_last::allocator_constructed = false;
     68         T t(std::allocator_arg, A1<int>(5), std::move(t0));
     69         assert(alloc_first::allocator_constructed);
     70         assert(alloc_last::allocator_constructed);
     71         assert(std::get<0>(t) == 1);
     72         assert(std::get<1>(t) == 2);
     73         assert(std::get<2>(t) == 3);
     74     }
     75 }
     76