| 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 | #include <new> |
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| 10 | |
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| 11 | #include "include/atomic_support.h" |
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| 12 | |
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| 13 | #if defined(_LIBCPP_ABI_MICROSOFT) |
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| 14 | # if !defined(_LIBCPP_ABI_VCRUNTIME) |
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| 15 | # define _LIBPCPP_DEFINE_NEW_HANDLER |
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| 16 | # endif |
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| 17 | #elif defined(LIBCXX_BUILDING_LIBCXXABI) |
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| 18 | // nothing to do, we use the one from libc++abi |
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| 19 | #elif defined(LIBCXXRT) |
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| 20 | # define _LIBPCPP_DEFINE_NEW_HANDLER |
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| 21 | #elif defined(__GLIBCXX__) |
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| 22 | // nothing to do, we use the one from libstdc++/libsupc++ |
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| 23 | #else |
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| 24 | # define _LIBPCPP_DEFINE_NEW_HANDLER |
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| 25 | #endif |
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| 26 | |
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| 27 | #if defined(_LIBPCPP_DEFINE_NEW_HANDLER) |
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| 28 | |
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| 29 | namespace std { // purposefully not versioned |
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| 30 | |
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| 31 | static constinit std::new_handler __new_handler = nullptr; |
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| 32 | |
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| 33 | new_handler set_new_handler(new_handler handler) noexcept { return __libcpp_atomic_exchange(&__new_handler, handler); } |
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| 34 | |
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| 35 | new_handler get_new_handler() noexcept { return __libcpp_atomic_load(&__new_handler); } |
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| 36 | |
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| 37 | } // namespace std |
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| 38 | |
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| 39 | #endif // _LIBPCPP_DEFINE_NEW_HANDLER |
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| 40 | |
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