| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // test placement new |
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| 10 | |
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| 11 | #include <new> |
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| 12 | #include <cassert> |
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| 13 | |
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| 14 | #include "test_macros.h" |
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| 15 | |
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| 16 | int A_constructed = 0; |
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| 17 | |
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| 18 | struct A { |
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| 19 | A() { ++A_constructed; } |
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| 20 | ~A() { --A_constructed; } |
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| 21 | }; |
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| 22 | |
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| 23 | TEST_CONSTEXPR_OPERATOR_NEW void test_direct_call() { |
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| 24 | assert(::operator new(sizeof(int), &A_constructed) == &A_constructed); |
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| 25 | |
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| 26 | char ch = '*'; |
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| 27 | assert(::operator new(1, &ch) == &ch); |
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| 28 | assert(ch == '*'); |
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| 29 | } |
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| 30 | |
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| 31 | #ifdef __cpp_lib_constexpr_new |
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| 32 | static_assert((test_direct_call(), true)); |
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| 33 | #endif |
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| 34 | |
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| 35 | int main(int, char**) { |
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| 36 | char buf[sizeof(A)]; |
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| 37 | |
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| 38 | A* ap = new (buf) A; |
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| 39 | assert((char*)ap == buf); |
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| 40 | assert(A_constructed == 1); |
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| 41 | |
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| 42 | test_direct_call(); |
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| 43 | return 0; |
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| 44 | } |
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| 45 | |
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