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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.
//
//===----------------------------------------------------------------------===//
// REQUIRES: c++experimental
// UNSUPPORTED: c++98, c++03
// <experimental/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> &&)
#include <experimental/memory_resource>
#include <type_traits>
#include <utility>
#include <tuple>
#include <cassert>
#include <cstdlib>
#include "test_macros.h"
#include "test_memory_resource.hpp"
#include "uses_alloc_types.hpp"
#include "controlled_allocators.hpp"
#include "test_allocator.h"
namespace ex = std::experimental::pmr;
template <class UA1, class UA2, class TT, class UU>
bool doTest(UsesAllocatorType TExpect, UsesAllocatorType UExpect,
std::pair<TT, UU>&& p)
{
using P = std::pair<UA1, UA2>;
TestResource R;
ex::memory_resource * M = &R;
ex::polymorphic_allocator<P> A(M);
P * ptr = A.allocate(2);
P * ptr2 = ptr + 1;
// UNDER TEST //
A.construct(ptr, std::move(p));
A.construct(ptr2, std::piecewise_construct,
std::forward_as_tuple(std::forward<TT>(p.first)),
std::forward_as_tuple(std::forward<UU>(p.second)));
// ------- //
bool tres = checkConstruct<TT&&>(ptr->first, TExpect, M) &&
checkConstructionEquiv(ptr->first, ptr2->first);
bool ures = checkConstruct<UU&&>(ptr->second, UExpect, M) &&
checkConstructionEquiv(ptr->second, ptr2->second);
A.destroy(ptr);
A.destroy(ptr2);
A.deallocate(ptr, 2);
return tres && ures;
}
template <class Alloc, class TT, class UU>
void test_pmr_uses_allocator(std::pair<TT, UU>&& p)
{
{
using T = NotUsesAllocator<Alloc, 1>;
using U = NotUsesAllocator<Alloc, 1>;
assert((doTest<T, U>(UA_None, UA_None, std::move(p))));
}
{
using T = UsesAllocatorV1<Alloc, 1>;
using U = UsesAllocatorV2<Alloc, 1>;
assert((doTest<T, U>(UA_AllocArg, UA_AllocLast, std::move(p))));
}
{
using T = UsesAllocatorV2<Alloc, 1>;
using U = UsesAllocatorV3<Alloc, 1>;
assert((doTest<T, U>(UA_AllocLast, UA_AllocArg, std::move(p))));
}
{
using T = UsesAllocatorV3<Alloc, 1>;
using U = NotUsesAllocator<Alloc, 1>;
assert((doTest<T, U>(UA_AllocArg, UA_None, std::move(p))));
}
}
template <class Alloc, class TT, class UU>
void test_pmr_not_uses_allocator(std::pair<TT, UU>&& p)
{
{
using T = NotUsesAllocator<Alloc, 1>;
using U = NotUsesAllocator<Alloc, 1>;
assert((doTest<T, U>(UA_None, UA_None, std::move(p))));
}
{
using T = UsesAllocatorV1<Alloc, 1>;
using U = UsesAllocatorV2<Alloc, 1>;
assert((doTest<T, U>(UA_None, UA_None, std::move(p))));
}
{
using T = UsesAllocatorV2<Alloc, 1>;
using U = UsesAllocatorV3<Alloc, 1>;
assert((doTest<T, U>(UA_None, UA_None, std::move(p))));
}
{
using T = UsesAllocatorV3<Alloc, 1>;
using U = NotUsesAllocator<Alloc, 1>;
assert((doTest<T, U>(UA_None, UA_None, std::move(p))));
}
}
int main()
{
using ERT = std::experimental::erased_type;
using PMR = ex::memory_resource*;
using PMA = ex::polymorphic_allocator<char>;
{
int x = 42;
int y = 42;
std::pair<int&, int&&> p(x, std::move(y));
test_pmr_uses_allocator<ERT>(std::move(p));
test_pmr_not_uses_allocator<PMR>(std::move(p));
test_pmr_uses_allocator<PMA>(std::move(p));
}
{
int x = 42;
int y = 42;
std::pair<int&&, int&> p(std::move(x), y);
test_pmr_uses_allocator<ERT>(std::move(p));
test_pmr_not_uses_allocator<PMR>(std::move(p));
test_pmr_uses_allocator<PMA>(std::move(p));
}
}
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