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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// test sized operator delete[] replacement.
// Note that sized delete operator definitions below are simply ignored
// when sized deallocation is not supported, e.g., prior to C++14.
// UNSUPPORTED: sanitizer-new-delete
// XFAIL: availability=macosx10.11
// XFAIL: availability=macosx10.10
// XFAIL: availability=macosx10.9
// XFAIL: availability=macosx10.8
// XFAIL: availability=macosx10.7
// NOTE: Only clang-3.7 and GCC 5.1 and greater support -fsized-deallocation.
// REQUIRES: -fsized-deallocation
// RUN: %build -fsized-deallocation
// RUN: %run
#if !defined(__cpp_sized_deallocation)
# error __cpp_sized_deallocation should be defined
#endif
#if !(__cpp_sized_deallocation >= 201309L)
# error expected __cpp_sized_deallocation >= 201309L
#endif
#include <new>
#include <cstddef>
#include <cstdlib>
#include <cassert>
#include "test_macros.h"
int unsized_delete_called = 0;
int unsized_delete_nothrow_called = 0;
int sized_delete_called = 0;
void operator delete[](void* p) TEST_NOEXCEPT
{
++unsized_delete_called;
std::free(p);
}
void operator delete[](void* p, const std::nothrow_t&) TEST_NOEXCEPT
{
++unsized_delete_nothrow_called;
std::free(p);
}
void operator delete[](void* p, std::size_t) TEST_NOEXCEPT
{
++sized_delete_called;
std::free(p);
}
// NOTE: Use a class with a non-trivial destructor as the test type in order
// to ensure the correct overload is called.
// C++14 5.3.5 [expr.delete]p10
// - If the type is complete and if, for the second alternative (delete array)
// only, the operand is a pointer to a class type with a non-trivial
// destructor or a (possibly multi-dimensional) array thereof, the function
// with two parameters is selected.
// - Otherwise, it is unspecified which of the two deallocation functions is
// selected.
struct A { ~A() {} };
int main()
{
A* x = new A[3];
assert(0 == unsized_delete_called);
assert(0 == unsized_delete_nothrow_called);
assert(0 == sized_delete_called);
delete [] x;
assert(0 == unsized_delete_called);
assert(0 == unsized_delete_nothrow_called);
assert(1 == sized_delete_called);
}
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