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// UNSUPPORTED: c++98, c++03, c++11, c++14
11// UNSUPPORTED: sanitizer-new-delete
12
13// XFAIL: no-aligned-allocation
14
15// test operator new nothrow by replacing only operator new
16
17#include <new>
18#include <cstddef>
19#include <cstdlib>
20#include <cassert>
21#include <limits>
22
23#include "test_macros.h"
24
25constexpr auto OverAligned = alignof(std::max_align_t) * 2;
26
27int A_constructed = 0;
28
29struct alignas(OverAligned) A
30{
31    A() {++A_constructed;}
32    ~A() {--A_constructed;}
33};
34
35int B_constructed = 0;
36
37struct B {
38  std::max_align_t member;
39  B() { ++B_constructed; }
40  ~B() { --B_constructed; }
41};
42
43int new_called = 0;
44alignas(OverAligned) char Buff[OverAligned * 3];
45
46void* operator new[](std::size_t s, std::align_val_t a) TEST_THROW_SPEC(std::bad_alloc)
47{
48    assert(!new_called);
49    assert(s <= sizeof(Buff));
50    assert(static_cast<std::size_t>(a) == OverAligned);
51    ++new_called;
52    return Buff;
53}
54
55void  operator delete[](void* p, std::align_val_t a) TEST_NOEXCEPT
56{
57    assert(p == Buff);
58    assert(static_cast<std::size_t>(a) == OverAligned);
59    assert(new_called);
60    --new_called;
61}
62
63int main()
64{
65    {
66        A* ap = new (std::nothrow) A[2];
67        assert(ap);
68        assert(A_constructed == 2);
69        assert(new_called);
70        delete [] ap;
71        assert(A_constructed == 0);
72        assert(!new_called);
73    }
74    {
75        B* bp = new (std::nothrow) B[2];
76        assert(bp);
77        assert(B_constructed == 2);
78        assert(!new_called);
79        delete [] bp;
80        assert(!new_called);
81        assert(!B_constructed);
82    }
83}
84