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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 U1, class U2>
     15 //   tuple(allocator_arg_t, const Alloc& a, const pair<U1, U2>&);
     16 
     17 #include <tuple>
     18 #include <utility>
     19 #include <cassert>
     20 
     21 #include "allocators.h"
     22 #include "../alloc_first.h"
     23 #include "../alloc_last.h"
     24 
     25 int main()
     26 {
     27     {
     28         typedef std::pair<double, int> T0;
     29         typedef std::tuple<int, double> T1;
     30         T0 t0(2, 3);
     31         T1 t1(std::allocator_arg, A1<int>(5), t0);
     32         assert(std::get<0>(t1) == 2);
     33         assert(std::get<1>(t1) == 3);
     34     }
     35     {
     36         typedef std::pair<int, int> T0;
     37         typedef std::tuple<alloc_first, double> T1;
     38         T0 t0(2, 3);
     39         alloc_first::allocator_constructed = false;
     40         T1 t1(std::allocator_arg, A1<int>(5), t0);
     41         assert(alloc_first::allocator_constructed);
     42         assert(std::get<0>(t1) == 2);
     43         assert(std::get<1>(t1) == 3);
     44     }
     45     {
     46         typedef std::pair<int, int> T0;
     47         typedef std::tuple<alloc_first, alloc_last> T1;
     48         T0 t0(2, 3);
     49         alloc_first::allocator_constructed = false;
     50         alloc_last::allocator_constructed = false;
     51         T1 t1(std::allocator_arg, A1<int>(5), t0);
     52         assert(alloc_first::allocator_constructed);
     53         assert(alloc_last::allocator_constructed);
     54         assert(std::get<0>(t1) == 2);
     55         assert(std::get<1>(t1) == 3);
     56     }
     57 }
     58