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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, const tuple&);
     16 
     17 #include <tuple>
     18 #include <cassert>
     19 
     20 #include "allocators.h"
     21 #include "../alloc_first.h"
     22 #include "../alloc_last.h"
     23 
     24 int main()
     25 {
     26     {
     27         typedef std::tuple<> T;
     28         T t0;
     29         T t(std::allocator_arg, A1<int>(), t0);
     30     }
     31     {
     32         typedef std::tuple<int> T;
     33         T t0(2);
     34         T t(std::allocator_arg, A1<int>(), t0);
     35         assert(std::get<0>(t) == 2);
     36     }
     37     {
     38         typedef std::tuple<alloc_first> T;
     39         T t0(2);
     40         alloc_first::allocator_constructed = false;
     41         T t(std::allocator_arg, A1<int>(5), t0);
     42         assert(alloc_first::allocator_constructed);
     43         assert(std::get<0>(t) == 2);
     44     }
     45     {
     46         typedef std::tuple<alloc_last> T;
     47         T t0(2);
     48         alloc_last::allocator_constructed = false;
     49         T t(std::allocator_arg, A1<int>(5), t0);
     50         assert(alloc_last::allocator_constructed);
     51         assert(std::get<0>(t) == 2);
     52     }
     53     {
     54         typedef std::tuple<alloc_first, alloc_last> T;
     55         T t0(2, 3);
     56         alloc_first::allocator_constructed = false;
     57         alloc_last::allocator_constructed = false;
     58         T t(std::allocator_arg, A1<int>(5), t0);
     59         assert(alloc_first::allocator_constructed);
     60         assert(alloc_last::allocator_constructed);
     61         assert(std::get<0>(t) == 2);
     62         assert(std::get<1>(t) == 3);
     63     }
     64     {
     65         typedef std::tuple<int, alloc_first, alloc_last> T;
     66         T t0(1, 2, 3);
     67         alloc_first::allocator_constructed = false;
     68         alloc_last::allocator_constructed = false;
     69         T t(std::allocator_arg, A1<int>(5), t0);
     70         assert(alloc_first::allocator_constructed);
     71         assert(alloc_last::allocator_constructed);
     72         assert(std::get<0>(t) == 1);
     73         assert(std::get<1>(t) == 2);
     74         assert(std::get<2>(t) == 3);
     75     }
     76 }
     77