1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// void* operator new[](std::size_t, std::nothrow_t const&);
10
11// Test that we can replace the operator by defining our own.
12
13// UNSUPPORTED: sanitizer-new-delete
14// XFAIL: libcpp-no-vcruntime
15
16#include <new>
17#include <cstddef>
18#include <cstdlib>
19#include <cassert>
20
21#include "test_macros.h"
22
23int new_nothrow_called = 0;
24int delete_called = 0;
25
26void* operator new[](std::size_t s, std::nothrow_t const&) TEST_NOEXCEPT {
27 ++new_nothrow_called;
28 return std::malloc(s);
29}
30
31void operator delete[](void* p) TEST_NOEXCEPT {
32 ++delete_called;
33 std::free(p);
34}
35
36int main(int, char**) {
37 new_nothrow_called = delete_called = 0;
38 int* x = DoNotOptimize(new (std::nothrow) int[3]);
39 assert(x != nullptr);
40 ASSERT_WITH_OPERATOR_NEW_FALLBACKS(new_nothrow_called == 1);
41
42 assert(delete_called == 0);
43 delete[] x;
44 ASSERT_WITH_OPERATOR_NEW_FALLBACKS(delete_called == 1);
45
46 return 0;
47}
48

source code of libcxx/test/std/language.support/support.dynamic/new.delete/new.delete.array/new.size_nothrow.replace.pass.cpp