blob: fc713dbf8ed833e50fcd780689d251946f23c4fb [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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, c++11, c++14
// UNSUPPORTED: sanitizer-new-delete
// Aligned allocation was not provided before macosx10.12 and as a result we
// get availability errors when the deployment target is older than macosx10.13.
// However, AppleClang 10 (and older) don't trigger availability errors.
// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.12
// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.11
// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.10
// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.9
// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.8
// XFAIL: !(apple-clang-9 || apple-clang-10) && availability=macosx10.7
// On AppleClang 10 (and older), instead of getting an availability failure
// like above, we get a link error when we link against a dylib that does
// not export the aligned allocation functions.
// XFAIL: (apple-clang-9 || apple-clang-10) && with_system_cxx_lib=macosx10.12
// XFAIL: (apple-clang-9 || apple-clang-10) && with_system_cxx_lib=macosx10.11
// XFAIL: (apple-clang-9 || apple-clang-10) && with_system_cxx_lib=macosx10.10
// XFAIL: (apple-clang-9 || apple-clang-10) && with_system_cxx_lib=macosx10.9
// XFAIL: (apple-clang-9 || apple-clang-10) && with_system_cxx_lib=macosx10.8
// XFAIL: (apple-clang-9 || apple-clang-10) && with_system_cxx_lib=macosx10.7
// XFAIL: no-aligned-allocation && !gcc
// On Windows libc++ doesn't provide its own definitions for new/delete
// but instead depends on the ones in VCRuntime. However VCRuntime does not
// yet provide aligned new/delete definitions so this test fails.
// XFAIL: LIBCXX-WINDOWS-FIXME
// test operator new nothrow by replacing only operator new
#include <new>
#include <cstddef>
#include <cstdlib>
#include <cassert>
#include <limits>
#include "test_macros.h"
constexpr auto OverAligned = __STDCPP_DEFAULT_NEW_ALIGNMENT__ * 2;
int A_constructed = 0;
struct alignas(OverAligned) A
{
A() {++A_constructed;}
~A() {--A_constructed;}
};
int B_constructed = 0;
struct B {
std::max_align_t member;
B() { ++B_constructed; }
~B() { --B_constructed; }
};
int new_called = 0;
alignas(OverAligned) char Buff[OverAligned * 3];
void* operator new[](std::size_t s, std::align_val_t a) TEST_THROW_SPEC(std::bad_alloc)
{
assert(!new_called);
assert(s <= sizeof(Buff));
assert(static_cast<std::size_t>(a) == OverAligned);
++new_called;
return Buff;
}
void operator delete[](void* p, std::align_val_t a) TEST_NOEXCEPT
{
assert(p == Buff);
assert(static_cast<std::size_t>(a) == OverAligned);
assert(new_called);
--new_called;
}
int main()
{
{
A* ap = new (std::nothrow) A[2];
assert(ap);
assert(A_constructed == 2);
assert(new_called);
delete [] ap;
assert(A_constructed == 0);
assert(!new_called);
}
{
B* bp = new (std::nothrow) B[2];
assert(bp);
assert(B_constructed == 2);
assert(!new_called);
delete [] bp;
assert(!new_called);
assert(!B_constructed);
}
}