Differential D47360 Diff 219818 test/std/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/construct_pair_const_lvalue_pair.pass.cpp

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test/std/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/construct_pair_const_lvalue_pair.pass.cpp

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				//===----------------------------------------------------------------------===//
				//
				// The LLVM Compiler Infrastructure
				//
				// This file is dual licensed under the MIT and the University of Illinois Open
				// Source Licenses. See LICENSE.TXT for details.
				//
				//===----------------------------------------------------------------------===//

				// UNSUPPORTED: c++98, c++03

				// <memory_resource>

				// template <class T> class polymorphic_allocator

				// template <class P1, class P2, class U1, class U2>
				// void polymorphic_allocator<T>::construct(pair<P1, P2>*, pair<U1, U2> const&)

				#include <memory_resource>
				#include <type_traits>
				#include <utility>
				#include <tuple>
				#include <cassert>
				#include <cstdlib>

				#include "test_macros.h"
				#include "test_std_memory_resource.h"
				#include "uses_alloc_types.h"
				#include "controlled_allocators.h"
				#include "test_allocator.h"


				template <class UA1, class UA2, class TT, class UU>
				bool doTest(UsesAllocatorType TExpect, UsesAllocatorType UExpect,
				std::pair<TT, UU> const& p)
				{
				using P = std::pair<UA1, UA2>;
				TestResource R;
				std::pmr::memory_resource * M = &R;
				std::pmr::polymorphic_allocator<P> A(M);
				P * ptr = (P*)std::malloc(sizeof(P));
				P * ptr2 = (P*)std::malloc(sizeof(P));

				// UNDER TEST //
				A.construct(ptr, p);

				A.construct(ptr2, std::piecewise_construct,
				std::forward_as_tuple(p.first),
				std::forward_as_tuple(p.second));
				// ------- //

				bool tres = checkConstruct<decltype((p.first))>(ptr->first, TExpect, M) &&
				checkConstructionEquiv(ptr->first, ptr2->first);

				bool ures = checkConstruct<decltype((p.second))>(ptr->second, UExpect, M) &&
				checkConstructionEquiv(ptr->second, ptr2->second);

				A.destroy(ptr);
				std::free(ptr);
				A.destroy(ptr2);
				std::free(ptr2);
				return tres && ures;

				}

				template <class Alloc, class TT, class UU>
				void test_pmr_uses_allocator(std::pair<TT, UU> const& p)
				{
				{
				using T = NotUsesAllocator<Alloc, 1>;
				using U = NotUsesAllocator<Alloc, 1>;
				assert((doTest<T, U>(UA_None, UA_None, p)));
				}
				{
				using T = UsesAllocatorV1<Alloc, 1>;
				using U = UsesAllocatorV2<Alloc, 1>;
				assert((doTest<T, U>(UA_AllocArg, UA_AllocLast, p)));
				}
				{
				using T = UsesAllocatorV2<Alloc, 1>;
				using U = UsesAllocatorV3<Alloc, 1>;
				assert((doTest<T, U>(UA_AllocLast, UA_AllocArg, p)));
				}
				{
				using T = UsesAllocatorV3<Alloc, 1>;
				using U = NotUsesAllocator<Alloc, 1>;
				assert((doTest<T, U>(UA_AllocArg, UA_None, p)));
				}
				}

				template <class Alloc, class TT, class UU>
				void test_pmr_not_uses_allocator(std::pair<TT, UU> const& p)
				{
				{
				using T = NotUsesAllocator<Alloc, 1>;
				using U = NotUsesAllocator<Alloc, 1>;
				assert((doTest<T, U>(UA_None, UA_None, p)));
				}
				{
				using T = UsesAllocatorV1<Alloc, 1>;
				using U = UsesAllocatorV2<Alloc, 1>;
				assert((doTest<T, U>(UA_None, UA_None, p)));
				}
				{
				using T = UsesAllocatorV2<Alloc, 1>;
				using U = UsesAllocatorV3<Alloc, 1>;
				assert((doTest<T, U>(UA_None, UA_None, p)));
				}
				{
				using T = UsesAllocatorV3<Alloc, 1>;
				using U = NotUsesAllocator<Alloc, 1>;
				assert((doTest<T, U>(UA_None, UA_None, p)));
				}
				}

				template <class Tp>
				struct Print;

				int main(int, char**)
				{
				using PMR = std::pmr::memory_resource*;
				using PMA = std::pmr::polymorphic_allocator<char>;
				{
				int x = 42;
				int y = 42;
				const std::pair<int, int&> p(x, y);
				test_pmr_not_uses_allocator<PMR>(p);
				test_pmr_uses_allocator<PMA>(p);
				}
				{
				int x = 42;
				int y = 42;
				const std::pair<int&, int&&> p(x, std::move(y));
				test_pmr_not_uses_allocator<PMR>(p);
				test_pmr_uses_allocator<PMA>(p);
				}

				return 0;
				}