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, const tuple<UTypes...>&); 16 17 // UNSUPPORTED: c++98, c++03 18 19 #include <tuple> 20 #include <memory> 21 #include <cassert> 22 23 #include "allocators.h" 24 #include "../alloc_first.h" 25 #include "../alloc_last.h" 26 27 struct Explicit { 28 int value; 29 explicit Explicit(int x) : value(x) {} 30 }; 31 32 struct Implicit { 33 int value; 34 Implicit(int x) : value(x) {} 35 }; 36 37 int main() 38 { 39 { 40 typedef std::tuple<long> T0; 41 typedef std::tuple<long long> T1; 42 T0 t0(2); 43 T1 t1(std::allocator_arg, A1<int>(), t0); 44 assert(std::get<0>(t1) == 2); 45 } 46 { 47 typedef std::tuple<int> T0; 48 typedef std::tuple<alloc_first> T1; 49 T0 t0(2); 50 alloc_first::allocator_constructed = false; 51 T1 t1(std::allocator_arg, A1<int>(5), t0); 52 assert(alloc_first::allocator_constructed); 53 assert(std::get<0>(t1) == 2); 54 } 55 { 56 typedef std::tuple<int, int> T0; 57 typedef std::tuple<alloc_first, alloc_last> T1; 58 T0 t0(2, 3); 59 alloc_first::allocator_constructed = false; 60 alloc_last::allocator_constructed = false; 61 T1 t1(std::allocator_arg, A1<int>(5), t0); 62 assert(alloc_first::allocator_constructed); 63 assert(alloc_last::allocator_constructed); 64 assert(std::get<0>(t1) == 2); 65 assert(std::get<1>(t1) == 3); 66 } 67 { 68 typedef std::tuple<long, int, int> T0; 69 typedef std::tuple<long long, alloc_first, alloc_last> T1; 70 T0 t0(1, 2, 3); 71 alloc_first::allocator_constructed = false; 72 alloc_last::allocator_constructed = false; 73 T1 t1(std::allocator_arg, A1<int>(5), t0); 74 assert(alloc_first::allocator_constructed); 75 assert(alloc_last::allocator_constructed); 76 assert(std::get<0>(t1) == 1); 77 assert(std::get<1>(t1) == 2); 78 assert(std::get<2>(t1) == 3); 79 } 80 { 81 const std::tuple<int> t1(42); 82 std::tuple<Explicit> t2{std::allocator_arg, std::allocator<void>{}, t1}; 83 assert(std::get<0>(t2).value == 42); 84 } 85 { 86 const std::tuple<int> t1(42); 87 std::tuple<Implicit> t2 = {std::allocator_arg, std::allocator<void>{}, t1}; 88 assert(std::get<0>(t2).value == 42); 89 } 90 } 91
