| 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 | // asan and msan will not call the new handler. |
| 12 | // UNSUPPORTED: sanitizer-new-delete |
| 13 | |
| 14 | #include <new> |
| 15 | #include <cstddef> |
| 16 | #include <cassert> |
| 17 | #include <limits> |
| 18 | |
| 19 | #include "test_macros.h" |
| 20 | #include "../types.h" |
| 21 | |
| 22 | int new_handler_called = 0; |
| 23 | |
| 24 | void my_new_handler() { |
| 25 | ++new_handler_called; |
| 26 | std::set_new_handler(nullptr); |
| 27 | } |
| 28 | |
| 29 | int main(int, char**) { |
| 30 | // Test that we can call the function directly |
| 31 | { |
| 32 | void* x = operator new(10, std::nothrow); |
| 33 | assert(x != nullptr); |
| 34 | operator delete(x, std::nothrow); |
| 35 | } |
| 36 | |
| 37 | // Test that the new handler is called and we return nullptr if allocation fails |
| 38 | { |
| 39 | std::set_new_handler(my_new_handler); |
| 40 | void* x = operator new(std::numeric_limits<std::size_t>::max(), std::nothrow); |
| 41 | assert(new_handler_called == 1); |
| 42 | assert(x == nullptr); |
| 43 | } |
| 44 | |
| 45 | // Test that a new expression constructs the right object |
| 46 | // and a delete expression deletes it |
| 47 | { |
| 48 | LifetimeInformation info; |
| 49 | TrackLifetime* x = new (std::nothrow) TrackLifetime(info); |
| 50 | assert(x != nullptr); |
| 51 | assert(info.address_constructed == x); |
| 52 | |
| 53 | const auto old_x = x; |
| 54 | delete x; |
| 55 | assert(info.address_destroyed == old_x); |
| 56 | } |
| 57 | |
| 58 | return 0; |
| 59 | } |
| 60 |