Eric Fiselier | 257fd69 | 2016-05-07 01:04:55 +0000 | [diff] [blame] | 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 | // UNSUPPORTED: c++98, c++03 |
| 11 | |
| 12 | // <experimental/memory_resource> |
| 13 | |
| 14 | // template <class T> class polymorphic_allocator |
| 15 | |
| 16 | // template <class U1, class U2, class ...Args1, class ...Args2> |
| 17 | // void polymorphic_allocator<T>::construct(pair<U1, U2>*, piecewise_construct_t |
| 18 | // tuple<Args1...>, tuple<Args2...>) |
| 19 | |
| 20 | #include <experimental/memory_resource> |
| 21 | #include <type_traits> |
| 22 | #include <utility> |
| 23 | #include <tuple> |
| 24 | #include <cassert> |
| 25 | #include <cstdlib> |
| 26 | #include "uses_alloc_types.hpp" |
| 27 | #include "test_allocator.h" |
| 28 | |
| 29 | namespace ex = std::experimental::pmr; |
| 30 | |
| 31 | template <class T, class U, class ...TTuple, class ...UTuple> |
| 32 | bool doTest(UsesAllocatorType TExpect, UsesAllocatorType UExpect, |
| 33 | std::tuple<TTuple...> ttuple, std::tuple<UTuple...> utuple) |
| 34 | { |
| 35 | using P = std::pair<T, U>; |
| 36 | TestResource R; |
| 37 | ex::memory_resource * M = &R; |
| 38 | ex::polymorphic_allocator<P> A(M); |
| 39 | P * ptr = A.allocate(1); |
| 40 | |
| 41 | // UNDER TEST // |
| 42 | A.construct(ptr, std::piecewise_construct, std::move(ttuple), std::move(utuple)); |
| 43 | // ------- // |
| 44 | bool tres = checkConstruct<TTuple&&...>(ptr->first, TExpect, M); |
| 45 | bool ures = checkConstruct<UTuple&&...>(ptr->second, UExpect, M); |
| 46 | |
| 47 | A.destroy(ptr); |
| 48 | A.deallocate(ptr, 1); |
| 49 | return tres && ures; |
| 50 | } |
| 51 | |
| 52 | template <class Alloc, class ...TTypes, class ...UTypes> |
| 53 | void test_pmr_uses_allocator(std::tuple<TTypes...> ttuple, std::tuple<UTypes...> utuple) |
| 54 | { |
| 55 | { |
| 56 | using T = NotUsesAllocator<Alloc, sizeof...(TTypes)>; |
| 57 | using U = NotUsesAllocator<Alloc, sizeof...(UTypes)>; |
| 58 | assert((doTest<T, U>(UA_None, UA_None, |
| 59 | std::move(ttuple), std::move(utuple)))); |
| 60 | } |
| 61 | { |
| 62 | using T = UsesAllocatorV1<Alloc, sizeof...(TTypes)>; |
| 63 | using U = UsesAllocatorV2<Alloc, sizeof...(UTypes)>; |
| 64 | assert((doTest<T, U>(UA_AllocArg, UA_AllocLast, |
| 65 | std::move(ttuple), std::move(utuple)))); |
| 66 | } |
| 67 | { |
| 68 | using T = UsesAllocatorV2<Alloc, sizeof...(TTypes)>; |
| 69 | using U = UsesAllocatorV3<Alloc, sizeof...(UTypes)>; |
| 70 | assert((doTest<T, U>(UA_AllocLast, UA_AllocArg, |
| 71 | std::move(ttuple), std::move(utuple)))); |
| 72 | } |
| 73 | { |
| 74 | using T = UsesAllocatorV3<Alloc, sizeof...(TTypes)>; |
| 75 | using U = NotUsesAllocator<Alloc, sizeof...(UTypes)>; |
| 76 | assert((doTest<T, U>(UA_AllocArg, UA_None, |
| 77 | std::move(ttuple), std::move(utuple)))); |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | int main() |
| 82 | { |
| 83 | using ERT = std::experimental::erased_type; |
| 84 | using PMR = ex::memory_resource*; |
| 85 | using PMA = ex::polymorphic_allocator<char>; |
| 86 | { |
| 87 | std::tuple<> t1; |
| 88 | test_pmr_uses_allocator<ERT>(t1, t1); |
| 89 | test_pmr_uses_allocator<PMR>(t1, t1); |
| 90 | test_pmr_uses_allocator<PMA>(t1, t1); |
| 91 | } |
| 92 | { |
| 93 | std::tuple<int> t1(42); |
| 94 | std::tuple<> t2; |
| 95 | test_pmr_uses_allocator<ERT>(t1, t2); |
| 96 | test_pmr_uses_allocator<ERT>(t2, t1); |
| 97 | test_pmr_uses_allocator<PMR>(t1, t2); |
| 98 | test_pmr_uses_allocator<PMR>(t2, t1); |
| 99 | test_pmr_uses_allocator<PMA>(t1, t2); |
| 100 | test_pmr_uses_allocator<PMA>(t2, t1); |
| 101 | } |
| 102 | { |
| 103 | std::tuple<int> t1(42); |
| 104 | int x = 55; |
| 105 | double dx = 42.42; |
| 106 | std::tuple<int&, double&&> t2(x, std::move(dx)); |
| 107 | test_pmr_uses_allocator<ERT>( t1, std::move(t2)); |
| 108 | test_pmr_uses_allocator<ERT>(std::move(t2), t1); |
| 109 | test_pmr_uses_allocator<PMR>( t1, std::move(t2)); |
| 110 | test_pmr_uses_allocator<PMR>(std::move(t2), t1); |
| 111 | test_pmr_uses_allocator<PMA>( t1, std::move(t2)); |
| 112 | test_pmr_uses_allocator<PMA>(std::move(t2), t1); |
| 113 | } |
| 114 | { |
| 115 | void* xptr = nullptr; |
| 116 | long y = 4242; |
| 117 | std::tuple<int, long const&, void*&> t1(42, y, xptr); |
| 118 | int x = 55; |
| 119 | double dx = 42.42; |
| 120 | const char* s = "hello World"; |
| 121 | std::tuple<int&, double&&, const char*> t2(x, std::move(dx), s); |
| 122 | test_pmr_uses_allocator<ERT>( t1, std::move(t2)); |
| 123 | test_pmr_uses_allocator<ERT>(std::move(t2), t1); |
| 124 | test_pmr_uses_allocator<PMR>( t1, std::move(t2)); |
| 125 | test_pmr_uses_allocator<PMR>(std::move(t2), t1); |
| 126 | test_pmr_uses_allocator<PMA>( t1, std::move(t2)); |
| 127 | test_pmr_uses_allocator<PMA>(std::move(t2), t1); |
| 128 | } |
| 129 | } |