--- /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/>.
+
+/** @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
+
+ /**
+ * @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); }
+
+ bool
+ operator=(bool __i) volatile 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,
+ __cmpexch_failure_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,
+ __cmpexch_failure_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,
+ __cmpexch_failure_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,
+ __cmpexch_failure_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 / cross.git / blobdiff