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

Changeset View

Standalone View

View Options

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

  • This file was added.
//===----------------------------------------------------------------------===//
//
// 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 U1, class U2, class ...Args1, class ...Args2>
// void polymorphic_allocator<T>::construct(pair<U1, U2>*, piecewise_construct_t
// tuple<Args1...>, tuple<Args2...>)
#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 T, class U, class ...TTuple, class ...UTuple>
bool doTest(UsesAllocatorType TExpect, UsesAllocatorType UExpect,
std::tuple<TTuple...> ttuple, std::tuple<UTuple...> utuple)
{
using P = std::pair<T, U>;
TestResource R;
std::pmr::memory_resource * M = &R;
std::pmr::polymorphic_allocator<P> A(M);
P * ptr = A.allocate(1);
// UNDER TEST //
A.construct(ptr, std::piecewise_construct, std::move(ttuple), std::move(utuple));
// ------- //
bool tres = checkConstruct<TTuple&&...>(ptr->first, TExpect, M);
bool ures = checkConstruct<UTuple&&...>(ptr->second, UExpect, M);
A.destroy(ptr);
A.deallocate(ptr, 1);
return tres && ures;
}
template <class Alloc, class ...TTypes, class ...UTypes>
void test_pmr_uses_allocator(std::tuple<TTypes...> ttuple, std::tuple<UTypes...> utuple)
{
{
using T = NotUsesAllocator<Alloc, sizeof...(TTypes)>;
using U = NotUsesAllocator<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_None, UA_None,
std::move(ttuple), std::move(utuple))));
}
{
using T = UsesAllocatorV1<Alloc, sizeof...(TTypes)>;
using U = UsesAllocatorV2<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_AllocArg, UA_AllocLast,
std::move(ttuple), std::move(utuple))));
}
{
using T = UsesAllocatorV2<Alloc, sizeof...(TTypes)>;
using U = UsesAllocatorV3<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_AllocLast, UA_AllocArg,
std::move(ttuple), std::move(utuple))));
}
{
using T = UsesAllocatorV3<Alloc, sizeof...(TTypes)>;
using U = NotUsesAllocator<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_AllocArg, UA_None,
std::move(ttuple), std::move(utuple))));
}
}
template <class Alloc, class ...TTypes, class ...UTypes>
void test_pmr_not_uses_allocator(std::tuple<TTypes...> ttuple, std::tuple<UTypes...> utuple)
{
{
using T = NotUsesAllocator<Alloc, sizeof...(TTypes)>;
using U = NotUsesAllocator<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_None, UA_None,
std::move(ttuple), std::move(utuple))));
}
{
using T = UsesAllocatorV1<Alloc, sizeof...(TTypes)>;
using U = UsesAllocatorV2<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_None, UA_None,
std::move(ttuple), std::move(utuple))));
}
{
using T = UsesAllocatorV2<Alloc, sizeof...(TTypes)>;
using U = UsesAllocatorV3<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_None, UA_None,
std::move(ttuple), std::move(utuple))));
}
{
using T = UsesAllocatorV3<Alloc, sizeof...(TTypes)>;
using U = NotUsesAllocator<Alloc, sizeof...(UTypes)>;
assert((doTest<T, U>(UA_None, UA_None,
std::move(ttuple), std::move(utuple))));
}
}
int main(int, char**)
{
using PMR = std::pmr::memory_resource*;
using PMA = std::pmr::polymorphic_allocator<char>;
{
std::tuple<> t1;
test_pmr_not_uses_allocator<PMR>(t1, t1);
test_pmr_uses_allocator<PMA>(t1, t1);
}
{
std::tuple<int> t1(42);
std::tuple<> t2;
test_pmr_not_uses_allocator<PMR>(t1, t2);
test_pmr_not_uses_allocator<PMR>(t2, t1);
test_pmr_uses_allocator<PMA>(t1, t2);
test_pmr_uses_allocator<PMA>(t2, t1);
}
{
std::tuple<int> t1(42);
int x = 55;
double dx = 42.42;
std::tuple<int&, double&&> t2(x, std::move(dx));
test_pmr_not_uses_allocator<PMR>( t1, std::move(t2));
test_pmr_not_uses_allocator<PMR>(std::move(t2), t1);
test_pmr_uses_allocator<PMA>( t1, std::move(t2));
test_pmr_uses_allocator<PMA>(std::move(t2), t1);
}
{
void* xptr = nullptr;
long y = 4242;
std::tuple<int, long const&, void*&> t1(42, y, xptr);
int x = 55;
double dx = 42.42;
const char* s = "hello World";
std::tuple<int&, double&&, const char*> t2(x, std::move(dx), s);
test_pmr_not_uses_allocator<PMR>( t1, std::move(t2));
test_pmr_not_uses_allocator<PMR>(std::move(t2), t1);
test_pmr_uses_allocator<PMA>( t1, std::move(t2));
test_pmr_uses_allocator<PMA>(std::move(t2), t1);
}
return 0;
}