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Vendor import of libc++ trunk r290819:
[FreeBSD/FreeBSD.git] / test / std / language.support / support.dynamic / new.delete / new.delete.single / new_nothrow.pass.cpp
1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 // test operator new (nothrow)
11
12 // asan and msan will not call the new handler.
13 // UNSUPPORTED: sanitizer-new-delete
14
15 #include <new>
16 #include <cstddef>
17 #include <cassert>
18 #include <limits>
19
20 #include "test_macros.h"
21
22 int new_handler_called = 0;
23
24 void new_handler()
25 {
26     ++new_handler_called;
27     std::set_new_handler(0);
28 }
29
30 bool A_constructed = false;
31
32 struct A
33 {
34     A() {A_constructed = true;}
35     ~A() {A_constructed = false;}
36 };
37
38 int main()
39 {
40     std::set_new_handler(new_handler);
41 #ifndef TEST_HAS_NO_EXCEPTIONS
42     try
43 #endif
44     {
45         void* vp = operator new (std::numeric_limits<std::size_t>::max(), std::nothrow);
46         assert(new_handler_called == 1);
47         assert(vp == 0);
48     }
49 #ifndef TEST_HAS_NO_EXCEPTIONS
50     catch (...)
51     {
52         assert(false);
53     }
54 #endif
55     A* ap = new(std::nothrow) A;
56     assert(ap);
57     assert(A_constructed);
58     delete ap;
59     assert(!A_constructed);
60 }