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 25 constexpr auto OverAligned = alignof(std::max_align_t) * 2; 26 27 int A_constructed = 0; 28 29 struct alignas(OverAligned) A 30 { 31 A() {++A_constructed;} 32 ~A() {--A_constructed;} 33 }; 34 35 int B_constructed = 0; 36 37 struct B { 38 std::max_align_t member; 39 B() { ++B_constructed; } 40 ~B() { --B_constructed; } 41 }; 42 43 int new_called = 0; 44 alignas(OverAligned) char Buff[OverAligned * 3]; 45 46 void* 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 55 void 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 63 int 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
