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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.
//
//===----------------------------------------------------------------------===//
// 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: c++14, c++17, c++2a
// UNSUPPORTED: sanitizer-new-delete
#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(1 == unsized_delete_called);
assert(0 == sized_delete_called);
assert(0 == unsized_delete_nothrow_called);
}
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