106c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 206c3fb27SDimitry Andric // 306c3fb27SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 406c3fb27SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 506c3fb27SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 606c3fb27SDimitry Andric // 706c3fb27SDimitry Andric //===----------------------------------------------------------------------===// 806c3fb27SDimitry Andric 906c3fb27SDimitry Andric #ifndef _LIBCPP___ATOMIC_ALIASES_H 1006c3fb27SDimitry Andric #define _LIBCPP___ATOMIC_ALIASES_H 1106c3fb27SDimitry Andric 1206c3fb27SDimitry Andric #include <__atomic/atomic.h> 1306c3fb27SDimitry Andric #include <__atomic/atomic_lock_free.h> 1406c3fb27SDimitry Andric #include <__atomic/contention_t.h> 1506c3fb27SDimitry Andric #include <__atomic/is_always_lock_free.h> 1606c3fb27SDimitry Andric #include <__config> 1706c3fb27SDimitry Andric #include <__type_traits/conditional.h> 18*5f757f3fSDimitry Andric #include <__type_traits/make_unsigned.h> 1906c3fb27SDimitry Andric #include <cstddef> 2006c3fb27SDimitry Andric #include <cstdint> 2106c3fb27SDimitry Andric #include <cstdlib> 2206c3fb27SDimitry Andric 2306c3fb27SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 2406c3fb27SDimitry Andric # pragma GCC system_header 2506c3fb27SDimitry Andric #endif 2606c3fb27SDimitry Andric 2706c3fb27SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 2806c3fb27SDimitry Andric 2906c3fb27SDimitry Andric using atomic_bool = atomic<bool>; 3006c3fb27SDimitry Andric using atomic_char = atomic<char>; 3106c3fb27SDimitry Andric using atomic_schar = atomic<signed char>; 3206c3fb27SDimitry Andric using atomic_uchar = atomic<unsigned char>; 3306c3fb27SDimitry Andric using atomic_short = atomic<short>; 3406c3fb27SDimitry Andric using atomic_ushort = atomic<unsigned short>; 3506c3fb27SDimitry Andric using atomic_int = atomic<int>; 3606c3fb27SDimitry Andric using atomic_uint = atomic<unsigned int>; 3706c3fb27SDimitry Andric using atomic_long = atomic<long>; 3806c3fb27SDimitry Andric using atomic_ulong = atomic<unsigned long>; 3906c3fb27SDimitry Andric using atomic_llong = atomic<long long>; 4006c3fb27SDimitry Andric using atomic_ullong = atomic<unsigned long long>; 4106c3fb27SDimitry Andric #ifndef _LIBCPP_HAS_NO_CHAR8_T 4206c3fb27SDimitry Andric using atomic_char8_t = atomic<char8_t>; 4306c3fb27SDimitry Andric #endif 4406c3fb27SDimitry Andric using atomic_char16_t = atomic<char16_t>; 4506c3fb27SDimitry Andric using atomic_char32_t = atomic<char32_t>; 4606c3fb27SDimitry Andric #ifndef _LIBCPP_HAS_NO_WIDE_CHARACTERS 4706c3fb27SDimitry Andric using atomic_wchar_t = atomic<wchar_t>; 4806c3fb27SDimitry Andric #endif 4906c3fb27SDimitry Andric 5006c3fb27SDimitry Andric using atomic_int_least8_t = atomic<int_least8_t>; 5106c3fb27SDimitry Andric using atomic_uint_least8_t = atomic<uint_least8_t>; 5206c3fb27SDimitry Andric using atomic_int_least16_t = atomic<int_least16_t>; 5306c3fb27SDimitry Andric using atomic_uint_least16_t = atomic<uint_least16_t>; 5406c3fb27SDimitry Andric using atomic_int_least32_t = atomic<int_least32_t>; 5506c3fb27SDimitry Andric using atomic_uint_least32_t = atomic<uint_least32_t>; 5606c3fb27SDimitry Andric using atomic_int_least64_t = atomic<int_least64_t>; 5706c3fb27SDimitry Andric using atomic_uint_least64_t = atomic<uint_least64_t>; 5806c3fb27SDimitry Andric 5906c3fb27SDimitry Andric using atomic_int_fast8_t = atomic<int_fast8_t>; 6006c3fb27SDimitry Andric using atomic_uint_fast8_t = atomic<uint_fast8_t>; 6106c3fb27SDimitry Andric using atomic_int_fast16_t = atomic<int_fast16_t>; 6206c3fb27SDimitry Andric using atomic_uint_fast16_t = atomic<uint_fast16_t>; 6306c3fb27SDimitry Andric using atomic_int_fast32_t = atomic<int_fast32_t>; 6406c3fb27SDimitry Andric using atomic_uint_fast32_t = atomic<uint_fast32_t>; 6506c3fb27SDimitry Andric using atomic_int_fast64_t = atomic<int_fast64_t>; 6606c3fb27SDimitry Andric using atomic_uint_fast64_t = atomic<uint_fast64_t>; 6706c3fb27SDimitry Andric 6806c3fb27SDimitry Andric using atomic_int8_t = atomic< int8_t>; 6906c3fb27SDimitry Andric using atomic_uint8_t = atomic<uint8_t>; 7006c3fb27SDimitry Andric using atomic_int16_t = atomic< int16_t>; 7106c3fb27SDimitry Andric using atomic_uint16_t = atomic<uint16_t>; 7206c3fb27SDimitry Andric using atomic_int32_t = atomic< int32_t>; 7306c3fb27SDimitry Andric using atomic_uint32_t = atomic<uint32_t>; 7406c3fb27SDimitry Andric using atomic_int64_t = atomic< int64_t>; 7506c3fb27SDimitry Andric using atomic_uint64_t = atomic<uint64_t>; 7606c3fb27SDimitry Andric 7706c3fb27SDimitry Andric using atomic_intptr_t = atomic<intptr_t>; 7806c3fb27SDimitry Andric using atomic_uintptr_t = atomic<uintptr_t>; 7906c3fb27SDimitry Andric using atomic_size_t = atomic<size_t>; 8006c3fb27SDimitry Andric using atomic_ptrdiff_t = atomic<ptrdiff_t>; 8106c3fb27SDimitry Andric using atomic_intmax_t = atomic<intmax_t>; 8206c3fb27SDimitry Andric using atomic_uintmax_t = atomic<uintmax_t>; 8306c3fb27SDimitry Andric 84*5f757f3fSDimitry Andric // C++20 atomic_{signed,unsigned}_lock_free: prefer the contention type most highly, then the largest lock-free type 85*5f757f3fSDimitry Andric #if _LIBCPP_STD_VER >= 20 8606c3fb27SDimitry Andric # if ATOMIC_LLONG_LOCK_FREE == 2 87*5f757f3fSDimitry Andric using __largest_lock_free_type = long long; 8806c3fb27SDimitry Andric # elif ATOMIC_INT_LOCK_FREE == 2 89*5f757f3fSDimitry Andric using __largest_lock_free_type = int; 9006c3fb27SDimitry Andric # elif ATOMIC_SHORT_LOCK_FREE == 2 91*5f757f3fSDimitry Andric using __largest_lock_free_type = short; 9206c3fb27SDimitry Andric # elif ATOMIC_CHAR_LOCK_FREE == 2 93*5f757f3fSDimitry Andric using __largest_lock_free_type = char; 9406c3fb27SDimitry Andric # else 95*5f757f3fSDimitry Andric # define _LIBCPP_NO_LOCK_FREE_TYPES // There are no lockfree types (this can happen in freestanding) 9606c3fb27SDimitry Andric # endif 9706c3fb27SDimitry Andric 98*5f757f3fSDimitry Andric # ifndef _LIBCPP_NO_LOCK_FREE_TYPES 99*5f757f3fSDimitry Andric using __contention_t_or_largest = 100*5f757f3fSDimitry Andric __conditional_t<__libcpp_is_always_lock_free<__cxx_contention_t>::__value, 101*5f757f3fSDimitry Andric __cxx_contention_t, 102*5f757f3fSDimitry Andric __largest_lock_free_type>; 103*5f757f3fSDimitry Andric 104*5f757f3fSDimitry Andric using atomic_signed_lock_free = atomic<__contention_t_or_largest>; 105*5f757f3fSDimitry Andric using atomic_unsigned_lock_free = atomic<make_unsigned_t<__contention_t_or_largest>>; 106*5f757f3fSDimitry Andric # endif // !_LIBCPP_NO_LOCK_FREE_TYPES 107*5f757f3fSDimitry Andric #endif // C++20 10806c3fb27SDimitry Andric 10906c3fb27SDimitry Andric _LIBCPP_END_NAMESPACE_STD 11006c3fb27SDimitry Andric 11106c3fb27SDimitry Andric #endif // _LIBCPP___ATOMIC_ALIASES_H 112