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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP___CXX03___ATOMIC_TO_GCC_ORDER_H
#define _LIBCPP___CXX03___ATOMIC_TO_GCC_ORDER_H
#include <__cxx03/__atomic/memory_order.h>
#include <__cxx03/__config>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
#if defined(__ATOMIC_RELAXED) && defined(__ATOMIC_CONSUME) && defined(__ATOMIC_ACQUIRE) && \
defined(__ATOMIC_RELEASE) && defined(__ATOMIC_ACQ_REL) && defined(__ATOMIC_SEQ_CST)
_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR int __to_gcc_order(memory_order __order) {
// Avoid switch statement to make this a constexpr.
return __order == memory_order_relaxed
? __ATOMIC_RELAXED
: (__order == memory_order_acquire
? __ATOMIC_ACQUIRE
: (__order == memory_order_release
? __ATOMIC_RELEASE
: (__order == memory_order_seq_cst
? __ATOMIC_SEQ_CST
: (__order == memory_order_acq_rel ? __ATOMIC_ACQ_REL : __ATOMIC_CONSUME))));
}
_LIBCPP_HIDE_FROM_ABI inline _LIBCPP_CONSTEXPR int __to_gcc_failure_order(memory_order __order) {
// Avoid switch statement to make this a constexpr.
return __order == memory_order_relaxed
? __ATOMIC_RELAXED
: (__order == memory_order_acquire
? __ATOMIC_ACQUIRE
: (__order == memory_order_release
? __ATOMIC_RELAXED
: (__order == memory_order_seq_cst
? __ATOMIC_SEQ_CST
: (__order == memory_order_acq_rel ? __ATOMIC_ACQUIRE : __ATOMIC_CONSUME))));
}
#endif
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP___CXX03___ATOMIC_TO_GCC_ORDER_H
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