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/*-
* Copyright (c) 2011 Ed Schouten <ed@FreeBSD.org>
* David Chisnall <theraven@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _STDATOMIC_H_
#define _STDATOMIC_H_
#include <sys/cdefs.h>
#if defined(__cplusplus) && __cplusplus >= 201103L && __has_include(<atomic>)
# if __has_feature(cxx_atomic)
# define _STDATOMIC_HAVE_ATOMIC
# endif
#endif
#ifdef _STDATOMIC_HAVE_ATOMIC
/* We have a usable C++ <atomic>; use it instead. */
#include <atomic>
#undef _Atomic
/* Also defined by <atomic> for gcc. But not used in macros. */
/* Also a clang intrinsic. */
/* Should not be used by client code before this file is */
/* included. The definitions in <atomic> themselves see */
/* the old definition, as they should. */
/* Client code sees the following definition. */
#define _Atomic(t) std::atomic<t>
using std::atomic_is_lock_free;
using std::atomic_init;
using std::atomic_store;
using std::atomic_store_explicit;
using std::atomic_load;
using std::atomic_load_explicit;
using std::atomic_exchange;
using std::atomic_exchange_explicit;
using std::atomic_compare_exchange_strong;
using std::atomic_compare_exchange_strong_explicit;
using std::atomic_compare_exchange_weak;
using std::atomic_compare_exchange_weak_explicit;
using std::atomic_fetch_add;
using std::atomic_fetch_add_explicit;
using std::atomic_fetch_sub;
using std::atomic_fetch_sub_explicit;
using std::atomic_fetch_or;
using std::atomic_fetch_or_explicit;
using std::atomic_fetch_xor;
using std::atomic_fetch_xor_explicit;
using std::atomic_fetch_and;
using std::atomic_fetch_and_explicit;
using std::atomic_thread_fence;
using std::atomic_signal_fence;
using std::memory_order;
using std::memory_order_relaxed;
using std::memory_order_consume;
using std::memory_order_acquire;
using std::memory_order_release;
using std::memory_order_acq_rel;
using std::memory_order_seq_cst;
using std::atomic_bool;
using std::atomic_char;
using std::atomic_schar;
using std::atomic_uchar;
using std::atomic_short;
using std::atomic_ushort;
using std::atomic_int;
using std::atomic_uint;
using std::atomic_long;
using std::atomic_ulong;
using std::atomic_llong;
using std::atomic_ullong;
using std::atomic_char16_t;
using std::atomic_char32_t;
using std::atomic_wchar_t;
using std::atomic_int_least8_t;
using std::atomic_uint_least8_t;
using std::atomic_int_least16_t;
using std::atomic_uint_least16_t;
using std::atomic_int_least32_t;
using std::atomic_uint_least32_t;
using std::atomic_int_least64_t;
using std::atomic_uint_least64_t;
using std::atomic_int_fast8_t;
using std::atomic_uint_fast8_t;
using std::atomic_int_fast16_t;
using std::atomic_uint_fast16_t;
using std::atomic_int_fast32_t;
using std::atomic_uint_fast32_t;
using std::atomic_int_fast64_t;
using std::atomic_uint_fast64_t;
using std::atomic_intptr_t;
using std::atomic_uintptr_t;
using std::atomic_size_t;
using std::atomic_ptrdiff_t;
using std::atomic_intmax_t;
using std::atomic_uintmax_t;
#else /* <atomic> unavailable, possibly because this is C, not C++ */
/* Actual implementation is in bits/stdatomic.h since our test code is C++. */
#include <bits/stdatomic.h>
#endif /* <atomic> unavailable */
#endif /* !_STDATOMIC_H_ */
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