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         }
46         catch (std::bad_alloc const&) {
47             assert(new_handler_called == 1);
48         } catch (...) {
49             assert(false);
50         }
51 #endif
52     }
53 
54     // Test that a new expression constructs the right objects
55     // and a delete expression deletes them. The brace-init requires C++11.
56     {
57 #if TEST_STD_VER >= 11
58         LifetimeInformation infos[3];
59         TrackLifetime* x = new TrackLifetime[3]{infos[0], infos[1], infos[2]};
60         assert(x != nullptr);
61 
62         void* addresses[3] = {&x[0], &x[1], &x[2]};
63         assert(infos[0].address_constructed == addresses[0]);
64         assert(infos[1].address_constructed == addresses[1]);
65         assert(infos[2].address_constructed == addresses[2]);
66 
67         delete[] x;
68         assert(infos[0].address_destroyed == addresses[0]);
69         assert(infos[1].address_destroyed == addresses[1]);
70         assert(infos[2].address_destroyed == addresses[2]);
71 #endif
72     }
73 
74     return 0;
75 }
76