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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
// <scoped_allocator>
// template <class OtherAlloc, class ...InnerAlloc>
// class scoped_allocator_adaptor
// template <class U1, class U2, class Tp, class Vp>
// void scoped_allocator_adaptor::construct(pair<U1, U2>*, Tp&&, Up&&)
#include <scoped_allocator>
#include <type_traits>
#include <utility>
#include <tuple>
#include <cassert>
#include <cstdlib>
#include "uses_alloc_types.hpp"
#include "controlled_allocators.hpp"
void test_no_inner_alloc()
{
using VoidAlloc = CountingAllocator<void>;
AllocController P;
{
using T = UsesAllocatorV1<VoidAlloc, 1>;
using U = UsesAllocatorV2<VoidAlloc, 1>;
using Pair = std::pair<T, U>;
int x = 42;
const int y = 101;
using Alloc = CountingAllocator<Pair>;
using SA = std::scoped_allocator_adaptor<Alloc>;
static_assert(std::uses_allocator<T, CountingAllocator<T> >::value, "");
Pair * ptr = (Pair*)std::malloc(sizeof(Pair));
Alloc CA(P);
SA A(CA);
A.construct(ptr, x, std::move(y));
assert(checkConstruct<int&>(ptr->first, UA_AllocArg, CA));
assert(checkConstruct<int const&&>(ptr->second, UA_AllocLast, CA));
assert((P.checkConstruct<std::piecewise_construct_t const&,
std::tuple<std::allocator_arg_t, SA&, int&>&&,
std::tuple<int const&&, SA&>&&
>(CA, ptr)));
A.destroy(ptr);
std::free(ptr);
}
P.reset();
{
using T = UsesAllocatorV3<VoidAlloc, 1>;
using U = NotUsesAllocator<VoidAlloc, 1>;
using Pair = std::pair<T, U>;
int x = 42;
const int y = 101;
using Alloc = CountingAllocator<Pair>;
using SA = std::scoped_allocator_adaptor<Alloc>;
static_assert(std::uses_allocator<T, CountingAllocator<T> >::value, "");
Pair * ptr = (Pair*)std::malloc(sizeof(Pair));
Alloc CA(P);
SA A(CA);
A.construct(ptr, std::move(x), y);
assert(checkConstruct<int&&>(ptr->first, UA_AllocArg, CA));
assert(checkConstruct<int const&>(ptr->second, UA_None));
assert((P.checkConstruct<std::piecewise_construct_t const&,
std::tuple<std::allocator_arg_t, SA&, int&&>&&,
std::tuple<int const&>&&
>(CA, ptr)));
A.destroy(ptr);
std::free(ptr);
}
}
void test_with_inner_alloc()
{
using VoidAlloc1 = CountingAllocator<void, 1>;
using VoidAlloc2 = CountingAllocator<void, 2>;
AllocController POuter;
AllocController PInner;
{
using T = UsesAllocatorV1<VoidAlloc2, 1>;
using U = UsesAllocatorV2<VoidAlloc2, 1>;
using Pair = std::pair<T, U>;
int x = 42;
int y = 101;
using Outer = CountingAllocator<Pair, 1>;
using Inner = CountingAllocator<Pair, 2>;
using SA = std::scoped_allocator_adaptor<Outer, Inner>;
using SAInner = std::scoped_allocator_adaptor<Inner>;
static_assert(!std::uses_allocator<T, Outer>::value, "");
static_assert(std::uses_allocator<T, Inner>::value, "");
Pair * ptr = (Pair*)std::malloc(sizeof(Pair));
Outer O(POuter);
Inner I(PInner);
SA A(O, I);
A.construct(ptr, x, std::move(y));
assert(checkConstruct<int&>(ptr->first, UA_AllocArg, I));
assert(checkConstruct<int &&>(ptr->second, UA_AllocLast));
assert((POuter.checkConstruct<std::piecewise_construct_t const&,
std::tuple<std::allocator_arg_t, SAInner&, int&>&&,
std::tuple<int &&, SAInner&>&&
>(O, ptr)));
A.destroy(ptr);
std::free(ptr);
}
PInner.reset();
POuter.reset();
{
using T = UsesAllocatorV3<VoidAlloc2, 1>;
using U = NotUsesAllocator<VoidAlloc2, 1>;
using Pair = std::pair<T, U>;
int x = 42;
const int y = 101;
using Outer = CountingAllocator<Pair, 1>;
using Inner = CountingAllocator<Pair, 2>;
using SA = std::scoped_allocator_adaptor<Outer, Inner>;
using SAInner = std::scoped_allocator_adaptor<Inner>;
static_assert(!std::uses_allocator<T, Outer>::value, "");
static_assert(std::uses_allocator<T, Inner>::value, "");
Pair * ptr = (Pair*)std::malloc(sizeof(Pair));
Outer O(POuter);
Inner I(PInner);
SA A(O, I);
A.construct(ptr, std::move(x), std::move(y));
assert(checkConstruct<int&&>(ptr->first, UA_AllocArg, I));
assert(checkConstruct<int const&&>(ptr->second, UA_None));
assert((POuter.checkConstruct<std::piecewise_construct_t const&,
std::tuple<std::allocator_arg_t, SAInner&, int&&>&&,
std::tuple<int const&&>&&
>(O, ptr)));
A.destroy(ptr);
std::free(ptr);
}
}
int main() {
test_no_inner_alloc();
test_with_inner_alloc();
}
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