--- /dev/null
+// -*- C++ -*- header.
+
+// Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+// ????????????????????????????????????????????????????????????????????
+//
+// This is a copy of the libstdc++ header, with the trivial modification
+// of ignoring the c++config.h include. If and when the top-level build is
+// fixed so that target libraries can be built using the newly built, we can
+// delete this file.
+//
+// ????????????????????????????????????????????????????????????????????
+
+/** @file include/atomic
+ * This is a Standard C++ Library header.
+ */
+
+// Based on "C++ Atomic Types and Operations" by Hans Boehm and Lawrence Crowl.
+// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2427.html
+
+#ifndef _GLIBCXX_ATOMIC
+#define _GLIBCXX_ATOMIC 1
+
+// #pragma GCC system_header
+
+// #ifndef __GXX_EXPERIMENTAL_CXX0X__
+// # include <bits/c++0x_warning.h>
+// #endif
+
+// #include <bits/atomic_base.h>
+
+namespace std // _GLIBCXX_VISIBILITY(default)
+{
+// _GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @defgroup atomics Atomics
+ *
+ * Components for performing atomic operations.
+ * @{
+ */
+
+ /// Enumeration for memory_order
+ typedef enum memory_order
+ {
+ memory_order_relaxed,
+ memory_order_consume,
+ memory_order_acquire,
+ memory_order_release,
+ memory_order_acq_rel,
+ memory_order_seq_cst
+ } memory_order;
+
+ inline memory_order
+ __calculate_memory_order(memory_order __m) noexcept
+ {
+ const bool __cond1 = __m == memory_order_release;
+ const bool __cond2 = __m == memory_order_acq_rel;
+ memory_order __mo1(__cond1 ? memory_order_relaxed : __m);
+ memory_order __mo2(__cond2 ? memory_order_acquire : __mo1);
+ return __mo2;
+ }
+
+ inline void
+ atomic_thread_fence(memory_order __m) noexcept
+ {
+ __atomic_thread_fence (__m);
+ }
+
+ inline void
+ atomic_signal_fence(memory_order __m) noexcept
+ {
+ __atomic_thread_fence (__m);
+ }
+
+ /// kill_dependency
+ template<typename _Tp>
+ inline _Tp
+ kill_dependency(_Tp __y) noexcept
+ {
+ _Tp __ret(__y);
+ return __ret;
+ }
+
+ /// Lock-free Property
+
+
+#define ATOMIC_BOOL_LOCK_FREE __GCC_ATOMIC_BOOL_LOCK_FREE
+#define ATOMIC_CHAR_LOCK_FREE __GCC_ATOMIC_CHAR_LOCK_FREE
+#define ATOMIC_WCHAR_T_LOCK_FREE __GCC_ATOMIC_WCHAR_T_LOCK_FREE
+#define ATOMIC_CHAR16_T_LOCK_FREE __GCC_ATOMIC_CHAR16_T_LOCK_FREE
+#define ATOMIC_CHAR32_T_LOCK_FREE __GCC_ATOMIC_CHAR32_T_LOCK_FREE
+#define ATOMIC_SHORT_LOCK_FREE __GCC_ATOMIC_SHORT_LOCK_FREE
+#define ATOMIC_INT_LOCK_FREE __GCC_ATOMIC_INT_LOCK_FREE
+#define ATOMIC_LONG_LOCK_FREE __GCC_ATOMIC_LONG_LOCK_FREE
+#define ATOMIC_LLONG_LOCK_FREE __GCC_ATOMIC_LLONG_LOCK_FREE
+#define ATOMIC_POINTER_LOCK_FREE __GCC_ATOMIC_POINTER_LOCK_FREE
+
+ // Base types for atomics.
+ template<typename _IntTp>
+ struct __atomic_base;
+
+ /// atomic_char
+ typedef __atomic_base<char> atomic_char;
+
+ /// atomic_schar
+ typedef __atomic_base<signed char> atomic_schar;
+
+ /// atomic_uchar
+ typedef __atomic_base<unsigned char> atomic_uchar;
+
+ /// atomic_short
+ typedef __atomic_base<short> atomic_short;
+
+ /// atomic_ushort
+ typedef __atomic_base<unsigned short> atomic_ushort;
+
+ /// atomic_int
+ typedef __atomic_base<int> atomic_int;
+
+ /// atomic_uint
+ typedef __atomic_base<unsigned int> atomic_uint;
+
+ /// atomic_long
+ typedef __atomic_base<long> atomic_long;
+
+ /// atomic_ulong
+ typedef __atomic_base<unsigned long> atomic_ulong;
+
+ /// atomic_llong
+ typedef __atomic_base<long long> atomic_llong;
+
+ /// atomic_ullong
+ typedef __atomic_base<unsigned long long> atomic_ullong;
+
+ /// atomic_wchar_t
+ typedef __atomic_base<wchar_t> atomic_wchar_t;
+
+ /// atomic_char16_t
+ typedef __atomic_base<char16_t> atomic_char16_t;
+
+ /// atomic_char32_t
+ typedef __atomic_base<char32_t> atomic_char32_t;
+
+ /// atomic_char32_t
+ typedef __atomic_base<char32_t> atomic_char32_t;
+
+
+ /// atomic_int_least8_t
+ typedef __atomic_base<int_least8_t> atomic_int_least8_t;
+
+ /// atomic_uint_least8_t
+ typedef __atomic_base<uint_least8_t> atomic_uint_least8_t;
+
+ /// atomic_int_least16_t
+ typedef __atomic_base<int_least16_t> atomic_int_least16_t;
+
+ /// atomic_uint_least16_t
+ typedef __atomic_base<uint_least16_t> atomic_uint_least16_t;
+
+ /// atomic_int_least32_t
+ typedef __atomic_base<int_least32_t> atomic_int_least32_t;
+
+ /// atomic_uint_least32_t
+ typedef __atomic_base<uint_least32_t> atomic_uint_least32_t;
+
+ /// atomic_int_least64_t
+ typedef __atomic_base<int_least64_t> atomic_int_least64_t;
+
+ /// atomic_uint_least64_t
+ typedef __atomic_base<uint_least64_t> atomic_uint_least64_t;
+
+
+ /// atomic_int_fast8_t
+ typedef __atomic_base<int_fast8_t> atomic_int_fast8_t;
+
+ /// atomic_uint_fast8_t
+ typedef __atomic_base<uint_fast8_t> atomic_uint_fast8_t;
+
+ /// atomic_int_fast16_t
+ typedef __atomic_base<int_fast16_t> atomic_int_fast16_t;
+
+ /// atomic_uint_fast16_t
+ typedef __atomic_base<uint_fast16_t> atomic_uint_fast16_t;
+
+ /// atomic_int_fast32_t
+ typedef __atomic_base<int_fast32_t> atomic_int_fast32_t;
+
+ /// atomic_uint_fast32_t
+ typedef __atomic_base<uint_fast32_t> atomic_uint_fast32_t;
+
+ /// atomic_int_fast64_t
+ typedef __atomic_base<int_fast64_t> atomic_int_fast64_t;
+
+ /// atomic_uint_fast64_t
+ typedef __atomic_base<uint_fast64_t> atomic_uint_fast64_t;
+
+
+ /// atomic_intptr_t
+ typedef __atomic_base<intptr_t> atomic_intptr_t;
+
+ /// atomic_uintptr_t
+ typedef __atomic_base<uintptr_t> atomic_uintptr_t;
+
+ /// atomic_size_t
+ typedef __atomic_base<size_t> atomic_size_t;
+
+ /// atomic_intmax_t
+ typedef __atomic_base<intmax_t> atomic_intmax_t;
+
+ /// atomic_uintmax_t
+ typedef __atomic_base<uintmax_t> atomic_uintmax_t;
+
+ /// atomic_ptrdiff_t
+ typedef __atomic_base<ptrdiff_t> atomic_ptrdiff_t;
+
+
+#define ATOMIC_VAR_INIT(_VI) { _VI }
+
+ template<typename _Tp>
+ struct atomic;
+
+ template<typename _Tp>
+ struct atomic<_Tp*>;
+
+
+ /**
+ * @brief Base type for atomic_flag.
+ *
+ * Base type is POD with data, allowing atomic_flag to derive from
+ * it and meet the standard layout type requirement. In addition to
+ * compatibilty with a C interface, this allows different
+ * implementations of atomic_flag to use the same atomic operation
+ * functions, via a standard conversion to the __atomic_flag_base
+ * argument.
+ */
+ // _GLIBCXX_BEGIN_EXTERN_C
+
+ struct __atomic_flag_base
+ {
+ bool _M_i;
+ };
+
+ // _GLIBCXX_END_EXTERN_C
+
+#define ATOMIC_FLAG_INIT { false }
+
+ /// atomic_flag
+ struct atomic_flag : public __atomic_flag_base
+ {
+ atomic_flag() noexcept = default;
+ ~atomic_flag() noexcept = default;
+ atomic_flag(const atomic_flag&) = delete;
+ atomic_flag& operator=(const atomic_flag&) = delete;
+ atomic_flag& operator=(const atomic_flag&) volatile = delete;
+
+ // Conversion to ATOMIC_FLAG_INIT.
+ atomic_flag(bool __i) noexcept : __atomic_flag_base({ __i }) { }
+
+ bool
+ test_and_set(memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return __atomic_test_and_set (&_M_i, __m);
+ }
+
+ bool
+ test_and_set(memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return __atomic_test_and_set (&_M_i, __m);
+ }
+
+ void
+ clear(memory_order __m = memory_order_seq_cst) noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_consume);
+ // __glibcxx_assert(__m != memory_order_acquire);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+
+ __atomic_clear (&_M_i, __m);
+ }
+
+ void
+ clear(memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_consume);
+ // __glibcxx_assert(__m != memory_order_acquire);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+
+ __atomic_clear (&_M_i, __m);
+ }
+ };
+
+
+ /// Base class for atomic integrals.
+ //
+ // For each of the integral types, define atomic_[integral type] struct
+ //
+ // atomic_bool bool
+ // atomic_char char
+ // atomic_schar signed char
+ // atomic_uchar unsigned char
+ // atomic_short short
+ // atomic_ushort unsigned short
+ // atomic_int int
+ // atomic_uint unsigned int
+ // atomic_long long
+ // atomic_ulong unsigned long
+ // atomic_llong long long
+ // atomic_ullong unsigned long long
+ // atomic_char16_t char16_t
+ // atomic_char32_t char32_t
+ // atomic_wchar_t wchar_t
+ //
+ // NB: Assuming _ITp is an integral scalar type that is 1, 2, 4, or
+ // 8 bytes, since that is what GCC built-in functions for atomic
+ // memory access expect.
+ template<typename _ITp>
+ struct __atomic_base
+ {
+ private:
+ typedef _ITp __int_type;
+
+ __int_type _M_i;
+
+ public:
+ __atomic_base() noexcept = default;
+ ~__atomic_base() noexcept = default;
+ __atomic_base(const __atomic_base&) = delete;
+ __atomic_base& operator=(const __atomic_base&) = delete;
+ __atomic_base& operator=(const __atomic_base&) volatile = delete;
+
+ // Requires __int_type convertible to _M_i.
+ constexpr __atomic_base(__int_type __i) noexcept : _M_i (__i) { }
+
+ operator __int_type() const noexcept
+ { return load(); }
+
+ operator __int_type() const volatile noexcept
+ { return load(); }
+
+ __int_type
+ operator=(__int_type __i) noexcept
+ {
+ store(__i);
+ return __i;
+ }
+
+ __int_type
+ operator=(__int_type __i) volatile noexcept
+ {
+ store(__i);
+ return __i;
+ }
+
+ __int_type
+ operator++(int) noexcept
+ { return fetch_add(1); }
+
+ __int_type
+ operator++(int) volatile noexcept
+ { return fetch_add(1); }
+
+ __int_type
+ operator--(int) noexcept
+ { return fetch_sub(1); }
+
+ __int_type
+ operator--(int) volatile noexcept
+ { return fetch_sub(1); }
+
+ __int_type
+ operator++() noexcept
+ { return __atomic_add_fetch(&_M_i, 1, memory_order_seq_cst); }
+
+ __int_type
+ operator++() volatile noexcept
+ { return __atomic_add_fetch(&_M_i, 1, memory_order_seq_cst); }
+
+ __int_type
+ operator--() noexcept
+ { return __atomic_sub_fetch(&_M_i, 1, memory_order_seq_cst); }
+
+ __int_type
+ operator--() volatile noexcept
+ { return __atomic_sub_fetch(&_M_i, 1, memory_order_seq_cst); }
+
+ __int_type
+ operator+=(__int_type __i) noexcept
+ { return __atomic_add_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator+=(__int_type __i) volatile noexcept
+ { return __atomic_add_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator-=(__int_type __i) noexcept
+ { return __atomic_sub_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator-=(__int_type __i) volatile noexcept
+ { return __atomic_sub_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator&=(__int_type __i) noexcept
+ { return __atomic_and_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator&=(__int_type __i) volatile noexcept
+ { return __atomic_and_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator|=(__int_type __i) noexcept
+ { return __atomic_or_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator|=(__int_type __i) volatile noexcept
+ { return __atomic_or_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator^=(__int_type __i) noexcept
+ { return __atomic_xor_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ __int_type
+ operator^=(__int_type __i) volatile noexcept
+ { return __atomic_xor_fetch(&_M_i, __i, memory_order_seq_cst); }
+
+ bool
+ is_lock_free() const noexcept
+ { return __atomic_is_lock_free (sizeof (_M_i), &_M_i); }
+
+ bool
+ is_lock_free() const volatile noexcept
+ { return __atomic_is_lock_free (sizeof (_M_i), &_M_i); }
+
+ void
+ store(__int_type __i, memory_order __m = memory_order_seq_cst) noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_acquire);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+ // __glibcxx_assert(__m != memory_order_consume);
+
+ __atomic_store_n(&_M_i, __i, __m);
+ }
+
+ void
+ store(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_acquire);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+ // __glibcxx_assert(__m != memory_order_consume);
+
+ __atomic_store_n(&_M_i, __i, __m);
+ }
+
+ __int_type
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+
+ return __atomic_load_n(&_M_i, __m);
+ }
+
+ __int_type
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+
+ return __atomic_load_n(&_M_i, __m);
+ }
+
+ __int_type
+ exchange(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return __atomic_exchange_n(&_M_i, __i, __m);
+ }
+
+
+ __int_type
+ exchange(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return __atomic_exchange_n(&_M_i, __i, __m);
+ }
+
+ bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m1, memory_order __m2) noexcept
+ {
+ // __glibcxx_assert(__m2 != memory_order_release);
+ // __glibcxx_assert(__m2 != memory_order_acq_rel);
+ // __glibcxx_assert(__m2 <= __m1);
+
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, __m1, __m2);
+ }
+
+ bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ {
+ // __glibcxx_assert(__m2 != memory_order_release);
+ // __glibcxx_assert(__m2 != memory_order_acq_rel);
+ // __glibcxx_assert(__m2 <= __m1);
+
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 1, __m1, __m2);
+ }
+
+ bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return compare_exchange_weak(__i1, __i2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ bool
+ compare_exchange_weak(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return compare_exchange_weak(__i1, __i2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m1, memory_order __m2) noexcept
+ {
+ // __glibcxx_assert(__m2 != memory_order_release);
+ // __glibcxx_assert(__m2 != memory_order_acq_rel);
+ // __glibcxx_assert(__m2 <= __m1);
+
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, __m1, __m2);
+ }
+
+ bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ {
+ // __glibcxx_assert(__m2 != memory_order_release);
+ // __glibcxx_assert(__m2 != memory_order_acq_rel);
+ // __glibcxx_assert(__m2 <= __m1);
+
+ return __atomic_compare_exchange_n(&_M_i, &__i1, __i2, 0, __m1, __m2);
+ }
+
+ bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return compare_exchange_strong(__i1, __i2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ bool
+ compare_exchange_strong(__int_type& __i1, __int_type __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return compare_exchange_strong(__i1, __i2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ __int_type
+ fetch_add(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_add(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_add(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_add(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_sub(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_sub(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_sub(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_sub(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_and(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_and(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_and(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_and(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_or(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_or(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_or(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_or(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_xor(__int_type __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_xor(&_M_i, __i, __m); }
+
+ __int_type
+ fetch_xor(__int_type __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_xor(&_M_i, __i, __m); }
+ };
+
+
+ /// Partial specialization for pointer types.
+ template<typename _PTp>
+ struct __atomic_base<_PTp*>
+ {
+ private:
+ typedef _PTp* __pointer_type;
+
+ __pointer_type _M_p;
+
+ public:
+ __atomic_base() noexcept = default;
+ ~__atomic_base() noexcept = default;
+ __atomic_base(const __atomic_base&) = delete;
+ __atomic_base& operator=(const __atomic_base&) = delete;
+ __atomic_base& operator=(const __atomic_base&) volatile = delete;
+
+ // Requires __pointer_type convertible to _M_p.
+ constexpr __atomic_base(__pointer_type __p) noexcept : _M_p (__p) { }
+
+ operator __pointer_type() const noexcept
+ { return load(); }
+
+ operator __pointer_type() const volatile noexcept
+ { return load(); }
+
+ __pointer_type
+ operator=(__pointer_type __p) noexcept
+ {
+ store(__p);
+ return __p;
+ }
+
+ __pointer_type
+ operator=(__pointer_type __p) volatile noexcept
+ {
+ store(__p);
+ return __p;
+ }
+
+ __pointer_type
+ operator++(int) noexcept
+ { return fetch_add(1); }
+
+ __pointer_type
+ operator++(int) volatile noexcept
+ { return fetch_add(1); }
+
+ __pointer_type
+ operator--(int) noexcept
+ { return fetch_sub(1); }
+
+ __pointer_type
+ operator--(int) volatile noexcept
+ { return fetch_sub(1); }
+
+ __pointer_type
+ operator++() noexcept
+ { return __atomic_add_fetch(&_M_p, 1, memory_order_seq_cst); }
+
+ __pointer_type
+ operator++() volatile noexcept
+ { return __atomic_add_fetch(&_M_p, 1, memory_order_seq_cst); }
+
+ __pointer_type
+ operator--() noexcept
+ { return __atomic_sub_fetch(&_M_p, 1, memory_order_seq_cst); }
+
+ __pointer_type
+ operator--() volatile noexcept
+ { return __atomic_sub_fetch(&_M_p, 1, memory_order_seq_cst); }
+
+ __pointer_type
+ operator+=(ptrdiff_t __d) noexcept
+ { return __atomic_add_fetch(&_M_p, __d, memory_order_seq_cst); }
+
+ __pointer_type
+ operator+=(ptrdiff_t __d) volatile noexcept
+ { return __atomic_add_fetch(&_M_p, __d, memory_order_seq_cst); }
+
+ __pointer_type
+ operator-=(ptrdiff_t __d) noexcept
+ { return __atomic_sub_fetch(&_M_p, __d, memory_order_seq_cst); }
+
+ __pointer_type
+ operator-=(ptrdiff_t __d) volatile noexcept
+ { return __atomic_sub_fetch(&_M_p, __d, memory_order_seq_cst); }
+
+ bool
+ is_lock_free() const noexcept
+ { return __atomic_is_lock_free (sizeof (_M_p), &_M_p); }
+
+ bool
+ is_lock_free() const volatile noexcept
+ { return __atomic_is_lock_free (sizeof (_M_p), &_M_p); }
+
+ void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_acquire);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+ // __glibcxx_assert(__m != memory_order_consume);
+
+ __atomic_store_n(&_M_p, __p, __m);
+ }
+
+ void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_acquire);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+ // __glibcxx_assert(__m != memory_order_consume);
+
+ __atomic_store_n(&_M_p, __p, __m);
+ }
+
+ __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+
+ return __atomic_load_n(&_M_p, __m);
+ }
+
+ __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ {
+ // __glibcxx_assert(__m != memory_order_release);
+ // __glibcxx_assert(__m != memory_order_acq_rel);
+
+ return __atomic_load_n(&_M_p, __m);
+ }
+
+ __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return __atomic_exchange_n(&_M_p, __p, __m);
+ }
+
+
+ __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return __atomic_exchange_n(&_M_p, __p, __m);
+ }
+
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) noexcept
+ {
+ // __glibcxx_assert(__m2 != memory_order_release);
+ // __glibcxx_assert(__m2 != memory_order_acq_rel);
+ // __glibcxx_assert(__m2 <= __m1);
+
+ return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, __m1, __m2);
+ }
+
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ {
+ // __glibcxx_assert(__m2 != memory_order_release);
+ // __glibcxx_assert(__m2 != memory_order_acq_rel);
+ // __glibcxx_assert(__m2 <= __m1);
+
+ return __atomic_compare_exchange_n(&_M_p, &__p1, __p2, 0, __m1, __m2);
+ }
+
+ __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_add(&_M_p, __d, __m); }
+
+ __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_add(&_M_p, __d, __m); }
+
+ __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return __atomic_fetch_sub(&_M_p, __d, __m); }
+
+ __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return __atomic_fetch_sub(&_M_p, __d, __m); }
+ };
+
+
+ /**
+ * @addtogroup atomics
+ * @{
+ */
+
+ /// atomic_bool
+ // NB: No operators or fetch-operations for this type.
+ struct atomic_bool
+ {
+ private:
+ __atomic_base<bool> _M_base;
+
+ public:
+ atomic_bool() noexcept = default;
+ ~atomic_bool() noexcept = default;
+ atomic_bool(const atomic_bool&) = delete;
+ atomic_bool& operator=(const atomic_bool&) = delete;
+ atomic_bool& operator=(const atomic_bool&) volatile = delete;
+
+ constexpr atomic_bool(bool __i) noexcept : _M_base(__i) { }
+
+ bool
+ operator=(bool __i) noexcept
+ { return _M_base.operator=(__i); }
+
+ operator bool() const noexcept
+ { return _M_base.load(); }
+
+ operator bool() const volatile noexcept
+ { return _M_base.load(); }
+
+ bool
+ is_lock_free() const noexcept { return _M_base.is_lock_free(); }
+
+ bool
+ is_lock_free() const volatile noexcept { return _M_base.is_lock_free(); }
+
+ void
+ store(bool __i, memory_order __m = memory_order_seq_cst) noexcept
+ { _M_base.store(__i, __m); }
+
+ void
+ store(bool __i, memory_order __m = memory_order_seq_cst) volatile noexcept
+ { _M_base.store(__i, __m); }
+
+ bool
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ { return _M_base.load(__m); }
+
+ bool
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ { return _M_base.load(__m); }
+
+ bool
+ exchange(bool __i, memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_base.exchange(__i, __m); }
+
+ bool
+ exchange(bool __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_base.exchange(__i, __m); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m); }
+
+ bool
+ compare_exchange_weak(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_base.compare_exchange_weak(__i1, __i2, __m); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2, memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m1, __m2); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
+
+ bool
+ compare_exchange_strong(bool& __i1, bool __i2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_base.compare_exchange_strong(__i1, __i2, __m); }
+ };
+
+
+ /// atomic
+ /// 29.4.3, Generic atomic type, primary class template.
+ template<typename _Tp>
+ struct atomic
+ {
+ private:
+ _Tp _M_i;
+
+ public:
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(_Tp __i) noexcept : _M_i(__i) { }
+
+ operator _Tp() const noexcept
+ { return load(); }
+
+ operator _Tp() const volatile noexcept
+ { return load(); }
+
+ _Tp
+ operator=(_Tp __i) noexcept
+ { store(__i); return __i; }
+
+ _Tp
+ operator=(_Tp __i) volatile noexcept
+ { store(__i); return __i; }
+
+ bool
+ is_lock_free() const noexcept
+ { return __atomic_is_lock_free(sizeof(_M_i), &_M_i); }
+
+ bool
+ is_lock_free() const volatile noexcept
+ { return __atomic_is_lock_free(sizeof(_M_i), &_M_i); }
+
+ void
+ store(_Tp __i, memory_order _m = memory_order_seq_cst) noexcept
+ { __atomic_store(&_M_i, &__i, _m); }
+
+ void
+ store(_Tp __i, memory_order _m = memory_order_seq_cst) volatile noexcept
+ { __atomic_store(&_M_i, &__i, _m); }
+
+ _Tp
+ load(memory_order _m = memory_order_seq_cst) const noexcept
+ {
+ _Tp tmp;
+ __atomic_load(&_M_i, &tmp, _m);
+ return tmp;
+ }
+
+ _Tp
+ load(memory_order _m = memory_order_seq_cst) const volatile noexcept
+ {
+ _Tp tmp;
+ __atomic_load(&_M_i, &tmp, _m);
+ return tmp;
+ }
+
+ _Tp
+ exchange(_Tp __i, memory_order _m = memory_order_seq_cst) noexcept
+ {
+ _Tp tmp;
+ __atomic_exchange(&_M_i, &__i, &tmp, _m);
+ return tmp;
+ }
+
+ _Tp
+ exchange(_Tp __i,
+ memory_order _m = memory_order_seq_cst) volatile noexcept
+ {
+ _Tp tmp;
+ __atomic_exchange(&_M_i, &__i, &tmp, _m);
+ return tmp;
+ }
+
+ bool
+ compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, true, __s, __f);
+ }
+
+ bool
+ compare_exchange_weak(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) volatile noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, true, __s, __f);
+ }
+
+ bool
+ compare_exchange_weak(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return compare_exchange_weak(__e, __i, __m, __m); }
+
+ bool
+ compare_exchange_weak(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return compare_exchange_weak(__e, __i, __m, __m); }
+
+ bool
+ compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, false, __s, __f);
+ }
+
+ bool
+ compare_exchange_strong(_Tp& __e, _Tp __i, memory_order __s,
+ memory_order __f) volatile noexcept
+ {
+ return __atomic_compare_exchange(&_M_i, &__e, &__i, false, __s, __f);
+ }
+
+ bool
+ compare_exchange_strong(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return compare_exchange_strong(__e, __i, __m, __m); }
+
+ bool
+ compare_exchange_strong(_Tp& __e, _Tp __i,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return compare_exchange_strong(__e, __i, __m, __m); }
+ };
+
+
+ /// Partial specialization for pointer types.
+ template<typename _Tp>
+ struct atomic<_Tp*>
+ {
+ typedef _Tp* __pointer_type;
+ typedef __atomic_base<_Tp*> __base_type;
+ __base_type _M_b;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__pointer_type __p) noexcept : _M_b(__p) { }
+
+ operator __pointer_type() const noexcept
+ { return __pointer_type(_M_b); }
+
+ operator __pointer_type() const volatile noexcept
+ { return __pointer_type(_M_b); }
+
+ __pointer_type
+ operator=(__pointer_type __p) noexcept
+ { return _M_b.operator=(__p); }
+
+ __pointer_type
+ operator=(__pointer_type __p) volatile noexcept
+ { return _M_b.operator=(__p); }
+
+ __pointer_type
+ operator++(int) noexcept
+ { return _M_b++; }
+
+ __pointer_type
+ operator++(int) volatile noexcept
+ { return _M_b++; }
+
+ __pointer_type
+ operator--(int) noexcept
+ { return _M_b--; }
+
+ __pointer_type
+ operator--(int) volatile noexcept
+ { return _M_b--; }
+
+ __pointer_type
+ operator++() noexcept
+ { return ++_M_b; }
+
+ __pointer_type
+ operator++() volatile noexcept
+ { return ++_M_b; }
+
+ __pointer_type
+ operator--() noexcept
+ { return --_M_b; }
+
+ __pointer_type
+ operator--() volatile noexcept
+ { return --_M_b; }
+
+ __pointer_type
+ operator+=(ptrdiff_t __d) noexcept
+ { return _M_b.operator+=(__d); }
+
+ __pointer_type
+ operator+=(ptrdiff_t __d) volatile noexcept
+ { return _M_b.operator+=(__d); }
+
+ __pointer_type
+ operator-=(ptrdiff_t __d) noexcept
+ { return _M_b.operator-=(__d); }
+
+ __pointer_type
+ operator-=(ptrdiff_t __d) volatile noexcept
+ { return _M_b.operator-=(__d); }
+
+ bool
+ is_lock_free() const noexcept
+ { return _M_b.is_lock_free(); }
+
+ bool
+ is_lock_free() const volatile noexcept
+ { return _M_b.is_lock_free(); }
+
+ void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.store(__p, __m); }
+
+ void
+ store(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.store(__p, __m); }
+
+ __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const noexcept
+ { return _M_b.load(__m); }
+
+ __pointer_type
+ load(memory_order __m = memory_order_seq_cst) const volatile noexcept
+ { return _M_b.load(__m); }
+
+ __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.exchange(__p, __m); }
+
+ __pointer_type
+ exchange(__pointer_type __p,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.exchange(__p, __m); }
+
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2) noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return compare_exchange_weak(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ bool
+ compare_exchange_weak(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return compare_exchange_weak(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1, memory_order __m2) noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m1,
+ memory_order __m2) volatile noexcept
+ { return _M_b.compare_exchange_strong(__p1, __p2, __m1, __m2); }
+
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) noexcept
+ {
+ return _M_b.compare_exchange_strong(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ bool
+ compare_exchange_strong(__pointer_type& __p1, __pointer_type __p2,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ {
+ return _M_b.compare_exchange_strong(__p1, __p2, __m,
+ __calculate_memory_order(__m));
+ }
+
+ __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.fetch_add(__d, __m); }
+
+ __pointer_type
+ fetch_add(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.fetch_add(__d, __m); }
+
+ __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) noexcept
+ { return _M_b.fetch_sub(__d, __m); }
+
+ __pointer_type
+ fetch_sub(ptrdiff_t __d,
+ memory_order __m = memory_order_seq_cst) volatile noexcept
+ { return _M_b.fetch_sub(__d, __m); }
+ };
+
+
+ /// Explicit specialization for bool.
+ template<>
+ struct atomic<bool> : public atomic_bool
+ {
+ typedef bool __integral_type;
+ typedef atomic_bool __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for char.
+ template<>
+ struct atomic<char> : public atomic_char
+ {
+ typedef char __integral_type;
+ typedef atomic_char __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for signed char.
+ template<>
+ struct atomic<signed char> : public atomic_schar
+ {
+ typedef signed char __integral_type;
+ typedef atomic_schar __base_type;
+
+ atomic() noexcept= default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for unsigned char.
+ template<>
+ struct atomic<unsigned char> : public atomic_uchar
+ {
+ typedef unsigned char __integral_type;
+ typedef atomic_uchar __base_type;
+
+ atomic() noexcept= default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for short.
+ template<>
+ struct atomic<short> : public atomic_short
+ {
+ typedef short __integral_type;
+ typedef atomic_short __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for unsigned short.
+ template<>
+ struct atomic<unsigned short> : public atomic_ushort
+ {
+ typedef unsigned short __integral_type;
+ typedef atomic_ushort __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for int.
+ template<>
+ struct atomic<int> : atomic_int
+ {
+ typedef int __integral_type;
+ typedef atomic_int __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for unsigned int.
+ template<>
+ struct atomic<unsigned int> : public atomic_uint
+ {
+ typedef unsigned int __integral_type;
+ typedef atomic_uint __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for long.
+ template<>
+ struct atomic<long> : public atomic_long
+ {
+ typedef long __integral_type;
+ typedef atomic_long __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for unsigned long.
+ template<>
+ struct atomic<unsigned long> : public atomic_ulong
+ {
+ typedef unsigned long __integral_type;
+ typedef atomic_ulong __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for long long.
+ template<>
+ struct atomic<long long> : public atomic_llong
+ {
+ typedef long long __integral_type;
+ typedef atomic_llong __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for unsigned long long.
+ template<>
+ struct atomic<unsigned long long> : public atomic_ullong
+ {
+ typedef unsigned long long __integral_type;
+ typedef atomic_ullong __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for wchar_t.
+ template<>
+ struct atomic<wchar_t> : public atomic_wchar_t
+ {
+ typedef wchar_t __integral_type;
+ typedef atomic_wchar_t __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for char16_t.
+ template<>
+ struct atomic<char16_t> : public atomic_char16_t
+ {
+ typedef char16_t __integral_type;
+ typedef atomic_char16_t __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+ /// Explicit specialization for char32_t.
+ template<>
+ struct atomic<char32_t> : public atomic_char32_t
+ {
+ typedef char32_t __integral_type;
+ typedef atomic_char32_t __base_type;
+
+ atomic() noexcept = default;
+ ~atomic() noexcept = default;
+ atomic(const atomic&) = delete;
+ atomic& operator=(const atomic&) = delete;
+ atomic& operator=(const atomic&) volatile = delete;
+
+ constexpr atomic(__integral_type __i) noexcept : __base_type(__i) { }
+
+ using __base_type::operator __integral_type;
+ using __base_type::operator=;
+ };
+
+
+ // Function definitions, atomic_flag operations.
+ inline bool
+ atomic_flag_test_and_set_explicit(atomic_flag* __a,
+ memory_order __m) noexcept
+ { return __a->test_and_set(__m); }
+
+ inline bool
+ atomic_flag_test_and_set_explicit(volatile atomic_flag* __a,
+ memory_order __m) noexcept
+ { return __a->test_and_set(__m); }
+
+ inline void
+ atomic_flag_clear_explicit(atomic_flag* __a, memory_order __m) noexcept
+ { __a->clear(__m); }
+
+ inline void
+ atomic_flag_clear_explicit(volatile atomic_flag* __a,
+ memory_order __m) noexcept
+ { __a->clear(__m); }
+
+ inline bool
+ atomic_flag_test_and_set(atomic_flag* __a) noexcept
+ { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }
+
+ inline bool
+ atomic_flag_test_and_set(volatile atomic_flag* __a) noexcept
+ { return atomic_flag_test_and_set_explicit(__a, memory_order_seq_cst); }
+
+ inline void
+ atomic_flag_clear(atomic_flag* __a) noexcept
+ { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }
+
+ inline void
+ atomic_flag_clear(volatile atomic_flag* __a) noexcept
+ { atomic_flag_clear_explicit(__a, memory_order_seq_cst); }
+
+
+ // Function templates generally applicable to atomic types.
+ template<typename _ITp>
+ inline bool
+ atomic_is_lock_free(const atomic<_ITp>* __a) noexcept
+ { return __a->is_lock_free(); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_is_lock_free(const volatile atomic<_ITp>* __a) noexcept
+ { return __a->is_lock_free(); }
+
+ template<typename _ITp>
+ inline void
+ atomic_init(atomic<_ITp>* __a, _ITp __i) noexcept;
+
+ template<typename _ITp>
+ inline void
+ atomic_init(volatile atomic<_ITp>* __a, _ITp __i) noexcept;
+
+ template<typename _ITp>
+ inline void
+ atomic_store_explicit(atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { __a->store(__i, __m); }
+
+ template<typename _ITp>
+ inline void
+ atomic_store_explicit(volatile atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { __a->store(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_load_explicit(const atomic<_ITp>* __a, memory_order __m) noexcept
+ { return __a->load(__m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_load_explicit(const volatile atomic<_ITp>* __a,
+ memory_order __m) noexcept
+ { return __a->load(__m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_exchange_explicit(atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->exchange(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_exchange_explicit(volatile atomic<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->exchange(__i, __m); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_weak_explicit(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+ memory_order __m2) noexcept
+ { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_weak_explicit(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+ memory_order __m2) noexcept
+ { return __a->compare_exchange_weak(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_strong_explicit(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+ memory_order __m2) noexcept
+ { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_strong_explicit(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2,
+ memory_order __m1,
+ memory_order __m2) noexcept
+ { return __a->compare_exchange_strong(*__i1, __i2, __m1, __m2); }
+
+
+ template<typename _ITp>
+ inline void
+ atomic_store(atomic<_ITp>* __a, _ITp __i) noexcept
+ { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline void
+ atomic_store(volatile atomic<_ITp>* __a, _ITp __i) noexcept
+ { atomic_store_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_load(const atomic<_ITp>* __a) noexcept
+ { return atomic_load_explicit(__a, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_load(const volatile atomic<_ITp>* __a) noexcept
+ { return atomic_load_explicit(__a, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_exchange(atomic<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_exchange(volatile atomic<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_exchange_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_weak(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+ return atomic_compare_exchange_weak_explicit(__a, __i1, __i2,
+ memory_order_seq_cst,
+ memory_order_seq_cst);
+ }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_weak(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+ return atomic_compare_exchange_weak_explicit(__a, __i1, __i2,
+ memory_order_seq_cst,
+ memory_order_seq_cst);
+ }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_strong(atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+ return atomic_compare_exchange_strong_explicit(__a, __i1, __i2,
+ memory_order_seq_cst,
+ memory_order_seq_cst);
+ }
+
+ template<typename _ITp>
+ inline bool
+ atomic_compare_exchange_strong(volatile atomic<_ITp>* __a,
+ _ITp* __i1, _ITp __i2) noexcept
+ {
+ return atomic_compare_exchange_strong_explicit(__a, __i1, __i2,
+ memory_order_seq_cst,
+ memory_order_seq_cst);
+ }
+
+ // Function templates for atomic_integral operations only, using
+ // __atomic_base. Template argument should be constricted to
+ // intergral types as specified in the standard, excluding address
+ // types.
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_add_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_add_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_sub_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_sub(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_sub_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_sub(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_and_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_and(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_and_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_and(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_or_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_or(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_or_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_or(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor_explicit(__atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_xor(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor_explicit(volatile __atomic_base<_ITp>* __a, _ITp __i,
+ memory_order __m) noexcept
+ { return __a->fetch_xor(__i, __m); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_add(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_add(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_add_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_sub(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_sub(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_sub_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_and(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_and(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_and_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_or(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_or(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_or_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor(__atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
+
+ template<typename _ITp>
+ inline _ITp
+ atomic_fetch_xor(volatile __atomic_base<_ITp>* __a, _ITp __i) noexcept
+ { return atomic_fetch_xor_explicit(__a, __i, memory_order_seq_cst); }
+
+
+ // Partial specializations for pointers.
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add_explicit(atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add_explicit(volatile atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m) noexcept
+ { return __a->fetch_add(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add(volatile atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_add(__d); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_add(atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_add(__d); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub_explicit(volatile atomic<_ITp*>* __a,
+ ptrdiff_t __d, memory_order __m) noexcept
+ { return __a->fetch_sub(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub_explicit(atomic<_ITp*>* __a, ptrdiff_t __d,
+ memory_order __m) noexcept
+ { return __a->fetch_sub(__d, __m); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub(volatile atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_sub(__d); }
+
+ template<typename _ITp>
+ inline _ITp*
+ atomic_fetch_sub(atomic<_ITp*>* __a, ptrdiff_t __d) noexcept
+ { return __a->fetch_sub(__d); }
+ // @} group atomics
+
+// _GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif
projects / platform / upstream / gcc.git / commitdiff