mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#include <new>
|
||
|
|
|
||
|
|
#include "atomic_support.h"
|
||
|
|
|
||
|
|
#if defined(_LIBCPP_ABI_MICROSOFT)
|
||
|
|
# if !defined(_LIBCPP_ABI_VCRUNTIME)
|
||
|
|
# define _LIBPCPP_DEFINE_NEW_HANDLER
|
||
|
|
# endif
|
||
|
|
#elif defined(LIBCXX_BUILDING_LIBCXXABI)
|
||
|
|
// nothing to do, we use the one from libc++abi
|
||
|
|
#elif defined(LIBCXXRT)
|
||
|
|
# define _LIBPCPP_DEFINE_NEW_HANDLER
|
||
|
|
#elif defined(__GLIBCXX__)
|
||
|
|
// nothing to do, we use the one from libstdc++/libsupc++
|
||
|
|
#else
|
||
|
|
# define _LIBPCPP_DEFINE_NEW_HANDLER
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(_LIBPCPP_DEFINE_NEW_HANDLER)
|
||
|
|
|
||
|
|
namespace std { // purposefully not versioned
|
||
|
|
|
||
|
|
static constinit std::new_handler __new_handler = nullptr;
|
||
|
|
|
||
|
|
new_handler set_new_handler(new_handler handler) noexcept { return __libcpp_atomic_exchange(&__new_handler, handler); }
|
||
|
|
|
||
|
|
new_handler get_new_handler() noexcept { return __libcpp_atomic_load(&__new_handler); }
|
||
|
|
|
||
|
|
} // namespace std
|
||
|
|
|
||
|
|
#endif // _LIBPCPP_DEFINE_NEW_HANDLER
|