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);
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 
my_new_handler()24 void my_new_handler() {
25     ++new_handler_called;
26     std::set_new_handler(nullptr);
27 }
28 
main(int,char **)29 int main(int, char**) {
30     // Test that we can call the function directly
31     {
32         void* x = operator new(10);
33         assert(x != nullptr);
34         operator delete(x);
35     }
36 
37     // Test that the new handler is called if allocation fails
38     {
39 #ifndef TEST_HAS_NO_EXCEPTIONS
40         std::set_new_handler(my_new_handler);
41         try {
42             void* x = operator new(std::numeric_limits<std::size_t>::max());
43             (void)x;
44             assert(false);
45         } catch (std::bad_alloc const&) {
46             assert(new_handler_called == 1);
47         } catch (...) {
48             assert(false);
49         }
50 #endif
51     }
52 
53     // Test that a new expression constructs the right object
54     // and a delete expression deletes it
55     {
56         LifetimeInformation info;
57         TrackLifetime* x = new TrackLifetime(info);
58         assert(x != nullptr);
59         assert(info.address_constructed == x);
60 
61         delete x;
62         assert(info.address_destroyed == x);
63     }
64 
65     return 0;
66 }
67