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[atomics.types.address] 

llvm-svn: 117033
This commit is contained in:
Howard Hinnant 2010-10-21 17:44:19 +00:00
parent a02bb37a8c
commit a7c2f3eac3
2 changed files with 690 additions and 0 deletions
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470
libcxx/include/atomic
View File

@ -11380,6 +11380,476 @@ atomic_fetch_xor_explicit(atomic_wchar_t* __obj, wchar_t __v,
__v, __o);
}
// atomic_address
struct atomic_address;
bool atomic_is_lock_free(const volatile atomic_address*);
bool atomic_is_lock_free(const atomic_address*);
void atomic_init(volatile atomic_address*, void*);
void atomic_init(atomic_address*, void*);
void atomic_store(volatile atomic_address*, void*);
void atomic_store(atomic_address*, void*);
void atomic_store_explicit(volatile atomic_address*, void*, memory_order);
void atomic_store_explicit(atomic_address*, void*, memory_order);
void* atomic_load(const volatile atomic_address*);
void* atomic_load(const atomic_address*);
void* atomic_load_explicit(const volatile atomic_address*, memory_order);
void* atomic_load_explicit(const atomic_address*, memory_order);
void* atomic_exchange(volatile atomic_address*, void*);
void* atomic_exchange(atomic_address*, void*);
void* atomic_exchange_explicit(volatile atomic_address*, void*, memory_order);
void* atomic_exchange_explicit(atomic_address*, void*, memory_order);
bool atomic_compare_exchange_weak(volatile atomic_address*, void**, void*);
bool atomic_compare_exchange_weak(atomic_address*, void**, void*);
bool atomic_compare_exchange_strong(volatile atomic_address*, void**, void*);
bool atomic_compare_exchange_strong(atomic_address*, void**, void*);
bool atomic_compare_exchange_weak_explicit(volatile atomic_address*, void**,
void*, memory_order, memory_order);
bool atomic_compare_exchange_weak_explicit(atomic_address*, void**,
void*, memory_order, memory_order);
bool atomic_compare_exchange_strong_explicit(volatile atomic_address*, void**,
void*, memory_order, memory_order);
bool atomic_compare_exchange_strong_explicit(atomic_address*, void**,
void*, memory_order, memory_order);
void* atomic_fetch_add(volatile atomic_address*, ptrdiff_t);
void* atomic_fetch_add(atomic_address*, ptrdiff_t);
void* atomic_fetch_add_explicit(volatile atomic_address*, ptrdiff_t,
memory_order);
void* atomic_fetch_add_explicit(atomic_address*, ptrdiff_t, memory_order);
void* atomic_fetch_sub(volatile atomic_address*, ptrdiff_t);
void* atomic_fetch_sub(atomic_address*, ptrdiff_t);
void* atomic_fetch_sub_explicit(volatile atomic_address*, ptrdiff_t,
memory_order);
void* atomic_fetch_sub_explicit(atomic_address*, ptrdiff_t, memory_order);
typedef struct atomic_address
{
void* __v_;
_LIBCPP_INLINE_VISIBILITY
bool is_lock_free() const volatile
{return atomic_is_lock_free(this);}
_LIBCPP_INLINE_VISIBILITY
bool is_lock_free() const
{return atomic_is_lock_free(this);}
_LIBCPP_INLINE_VISIBILITY
void store(void* __v, memory_order __o = memory_order_seq_cst) volatile
{atomic_store_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
void store(void* __v, memory_order __o = memory_order_seq_cst)
{atomic_store_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
void* load(memory_order __o = memory_order_seq_cst) const volatile
{return atomic_load_explicit(this, __o);}
_LIBCPP_INLINE_VISIBILITY
void* load(memory_order __o = memory_order_seq_cst) const
{return atomic_load_explicit(this, __o);}
_LIBCPP_INLINE_VISIBILITY
operator void*() const volatile
{return load();}
_LIBCPP_INLINE_VISIBILITY
operator void*() const
{return load();}
_LIBCPP_INLINE_VISIBILITY
void* exchange(void* __v, memory_order __o = memory_order_seq_cst) volatile
{return atomic_exchange_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
void* exchange(void* __v, memory_order __o = memory_order_seq_cst)
{return atomic_exchange_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(void*& __v, void* __e, memory_order __s,
memory_order __f) volatile
{return atomic_compare_exchange_weak_explicit(this, &__v, __e, __s,
__f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(void*& __v, void* __e, memory_order __s,
memory_order __f)
{return atomic_compare_exchange_weak_explicit(this, &__v, __e, __s,
__f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(void*& __v, void* __e, memory_order __s,
memory_order __f) volatile
{return atomic_compare_exchange_strong_explicit(this, &__v, __e, __s,
__f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(void*& __v, void* __e, memory_order __s,
memory_order __f)
{return atomic_compare_exchange_strong_explicit(this, &__v, __e, __s,
__f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(void*& __v, void* __e,
memory_order __s = memory_order_seq_cst) volatile
{return atomic_compare_exchange_weak_explicit(this, &__v, __e, __s,
__translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(void*& __v, void* __e,
memory_order __s = memory_order_seq_cst)
{return atomic_compare_exchange_weak_explicit(this, &__v, __e, __s,
__translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(void*& __v, void* __e,
memory_order __s = memory_order_seq_cst) volatile
{return atomic_compare_exchange_strong_explicit(this, &__v, __e, __s,
__translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(void*& __v, void* __e,
memory_order __s = memory_order_seq_cst)
{return atomic_compare_exchange_strong_explicit(this, &__v, __e, __s,
__translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(const void*& __v, const void* __e,
memory_order __s, memory_order __f) volatile
{return atomic_compare_exchange_weak_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e), __s, __f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(const void*& __v, const void* __e,
memory_order __s, memory_order __f)
{return atomic_compare_exchange_weak_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e), __s, __f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(const void*& __v, const void* __e,
memory_order __s, memory_order __f) volatile
{return atomic_compare_exchange_strong_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e), __s, __f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(const void*& __v, const void* __e,
memory_order __s, memory_order __f)
{return atomic_compare_exchange_strong_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e), __s, __f);}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(const void*& __v, const void* __e,
memory_order __s = memory_order_seq_cst) volatile
{return atomic_compare_exchange_weak_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e),
__s, __translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_weak(const void*& __v, const void* __e,
memory_order __s = memory_order_seq_cst)
{return atomic_compare_exchange_weak_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e),
__s, __translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(const void*& __v, const void* __e,
memory_order __s = memory_order_seq_cst) volatile
{return atomic_compare_exchange_strong_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e),
__s, __translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
bool compare_exchange_strong(const void*& __v, const void* __e,
memory_order __s = memory_order_seq_cst)
{return atomic_compare_exchange_strong_explicit(this,
&const_cast<void*&>(__v), const_cast<void*>(__e),
__s, __translate_memory_order(__s));}
_LIBCPP_INLINE_VISIBILITY
void* fetch_add(ptrdiff_t __v,
memory_order __o = memory_order_seq_cst) volatile
{return atomic_fetch_add_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
void* fetch_add(ptrdiff_t __v, memory_order __o = memory_order_seq_cst)
{return atomic_fetch_add_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
void* fetch_sub(ptrdiff_t __v,
memory_order __o = memory_order_seq_cst) volatile
{return atomic_fetch_sub_explicit(this, __v, __o);}
_LIBCPP_INLINE_VISIBILITY
void* fetch_sub(ptrdiff_t __v, memory_order __o = memory_order_seq_cst)
{return atomic_fetch_sub_explicit(this, __v, __o);}
#ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
atomic_address() = default;
#else
_LIBCPP_INLINE_VISIBILITY
atomic_address() {}
#endif
_LIBCPP_INLINE_VISIBILITY
/*constexpr*/ atomic_address(void* __v)
: __v_(__v) {}
#ifndef _LIBCPP_HAS_NO_DELETED_FUNCTIONS
atomic_address(const atomic_address&) = delete;
atomic_address& operator=(const atomic_address&) = delete;
atomic_address& operator=(const atomic_address&) volatile = delete;
#else
private:
atomic_address(const atomic_address&);
atomic_address& operator=(const atomic_address&);
atomic_address& operator=(const atomic_address&) volatile;
public:
#endif
_LIBCPP_INLINE_VISIBILITY
void* operator=(const void* __v) volatile
{store(const_cast<void*>(__v)); return const_cast<void*>(__v);}
_LIBCPP_INLINE_VISIBILITY
void* operator=(const void* __v)
{store(const_cast<void*>(__v)); return const_cast<void*>(__v);}
_LIBCPP_INLINE_VISIBILITY
void* operator+=(ptrdiff_t __v) volatile
{return static_cast<char*>(fetch_add(__v)) + __v;}
_LIBCPP_INLINE_VISIBILITY
void* operator+=(ptrdiff_t __v)
{return static_cast<char*>(fetch_add(__v)) + __v;}
_LIBCPP_INLINE_VISIBILITY
void* operator-=(ptrdiff_t __v) volatile
{return static_cast<char*>(fetch_sub(__v)) - __v;}
_LIBCPP_INLINE_VISIBILITY
void* operator-=(ptrdiff_t __v)
{return static_cast<char*>(fetch_sub(__v)) - __v;}
} atomic_address;
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_is_lock_free(const volatile atomic_address*)
{
typedef void* type;
return __atomic_is_lock_free(type);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_is_lock_free(const atomic_address* __obj)
{
return atomic_is_lock_free(const_cast<volatile atomic_address*>(__obj));
}
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_init(volatile atomic_address* __obj, void* __desr)
{
__obj->__v_ = __desr;
}
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_init(atomic_address* __obj, void* __desr)
{
__obj->__v_ = __desr;
}
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_store(volatile atomic_address* __obj, void* __desr)
{
__atomic_store(&__obj->__v_, __desr, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_store(atomic_address* __obj, void* __desr)
{
atomic_store(const_cast<volatile atomic_address*>(__obj), __desr);
}
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_store_explicit(volatile atomic_address* __obj, void* __desr,
memory_order __o)
{
__atomic_store(&__obj->__v_, __desr, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void
atomic_store_explicit(atomic_address* __obj, void* __desr, memory_order __o)
{
atomic_store_explicit(const_cast<volatile atomic_address*>(__obj), __desr,
__o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_load(const volatile atomic_address* __obj)
{
return __atomic_load(&__obj->__v_, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_load(const atomic_address* __obj)
{
return atomic_load(const_cast<const volatile atomic_address*>(__obj));
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_load_explicit(const volatile atomic_address* __obj, memory_order __o)
{
return __atomic_load(&__obj->__v_, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_load_explicit(const atomic_address* __obj, memory_order __o)
{
return atomic_load_explicit(const_cast<const volatile atomic_address*>
(__obj), __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_exchange(volatile atomic_address* __obj, void* __desr)
{
return __atomic_exchange(&__obj->__v_, __desr, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_exchange(atomic_address* __obj, void* __desr)
{
return atomic_exchange(const_cast<volatile atomic_address*>(__obj), __desr);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_exchange_explicit(volatile atomic_address* __obj, void* __desr,
memory_order __o)
{
return __atomic_exchange(&__obj->__v_, __desr, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_exchange_explicit(atomic_address* __obj, void* __desr, memory_order __o)
{
return atomic_exchange_explicit(const_cast<volatile atomic_address*>
(__obj), __desr, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_weak(volatile atomic_address* __obj, void** __exp,
void* __desr)
{
return __atomic_compare_exchange_weak(&__obj->__v_, __exp, __desr,
memory_order_seq_cst, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_weak(atomic_address* __obj, void** __exp, void* __desr)
{
return atomic_compare_exchange_weak(const_cast<volatile atomic_address*>
(__obj), __exp, __desr);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_strong(volatile atomic_address* __obj, void** __exp,
void* __desr)
{
return __atomic_compare_exchange_strong(&__obj->__v_, __exp, __desr,
memory_order_seq_cst, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_strong(atomic_address* __obj, void** __exp,
void* __desr)
{
return atomic_compare_exchange_strong(const_cast<volatile atomic_address*>
(__obj), __exp, __desr);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_weak_explicit(volatile atomic_address* __obj,
void** __exp, void* __desr,
memory_order __s, memory_order __f)
{
return __atomic_compare_exchange_weak(&__obj->__v_, __exp, __desr, __s,
__f);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_weak_explicit(atomic_address* __obj, void** __exp,
void* __desr, memory_order __s,
memory_order __f)
{
return atomic_compare_exchange_weak_explicit(
const_cast<volatile atomic_address*>(__obj), __exp, __desr, __s, __f);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_strong_explicit(volatile atomic_address* __obj,
void** __exp, void* __desr,
memory_order __s, memory_order __f)
{
return __atomic_compare_exchange_strong(&__obj->__v_, __exp, __desr, __s,
__f);
}
inline _LIBCPP_INLINE_VISIBILITY
bool
atomic_compare_exchange_strong_explicit(atomic_address* __obj, void** __exp,
void* __desr, memory_order __s,
memory_order __f)
{
return atomic_compare_exchange_strong_explicit(
const_cast<volatile atomic_address*>(__obj), __exp, __desr, __s, __f);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_add(volatile atomic_address* __obj, ptrdiff_t __v)
{
return __atomic_fetch_add(&__obj->__v_, __v, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_add(atomic_address* __obj, ptrdiff_t __v)
{
return atomic_fetch_add(const_cast<volatile atomic_address*>(__obj), __v);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_add_explicit(volatile atomic_address* __obj, ptrdiff_t __v,
memory_order __o)
{
return __atomic_fetch_add(&__obj->__v_, __v, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_add_explicit(atomic_address* __obj, ptrdiff_t __v,
memory_order __o)
{
return atomic_fetch_add_explicit(const_cast<volatile atomic_address*>(__obj),
__v, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_sub(volatile atomic_address* __obj, ptrdiff_t __v)
{
return __atomic_fetch_sub(&__obj->__v_, __v, memory_order_seq_cst);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_sub(atomic_address* __obj, ptrdiff_t __v)
{
return atomic_fetch_sub(const_cast<volatile atomic_address*>(__obj), __v);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_sub_explicit(volatile atomic_address* __obj, ptrdiff_t __v,
memory_order __o)
{
return __atomic_fetch_sub(&__obj->__v_, __v, __o);
}
inline _LIBCPP_INLINE_VISIBILITY
void*
atomic_fetch_sub_explicit(atomic_address* __obj, ptrdiff_t __v,
memory_order __o)
{
return atomic_fetch_sub_explicit(const_cast<volatile atomic_address*>(__obj),
__v, __o);
}
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_ATOMIC

220
libcxx/test/atomics/atomics.types/atomics.types.address/address.pass.cpp Normal file
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@ -0,0 +1,220 @@
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <atomic>
// typedef struct atomic_address
// {
// bool is_lock_free() const volatile;
// bool is_lock_free() const;
// void store(void*, memory_order = memory_order_seq_cst) volatile;
// void store(void*, memory_order = memory_order_seq_cst);
// void* load(memory_order = memory_order_seq_cst) const volatile;
// void* load(memory_order = memory_order_seq_cst) const;
// operator void*() const volatile;
// operator void*() const;
// void* exchange(void*, memory_order = memory_order_seq_cst) volatile;
// void* exchange(void*, memory_order = memory_order_seq_cst);
// bool compare_exchange_weak(void*&, void*, memory_order,
// memory_order) volatile;
// bool compare_exchange_weak(void*&, void*, memory_order, memory_order);
// bool compare_exchange_strong(void*&, void*, memory_order,
// memory_order) volatile;
// bool compare_exchange_strong(void*&, void*, memory_order, memory_order);
// bool compare_exchange_weak(void*&, void*,
// memory_order = memory_order_seq_cst) volatile;
// bool compare_exchange_weak(void*&, void*,
// memory_order = memory_order_seq_cst);
// bool compare_exchange_strong(void*&, void*,
// memory_order = memory_order_seq_cst) volatile;
// bool compare_exchange_strong(void*&, void*,
// memory_order = memory_order_seq_cst);
// bool compare_exchange_weak(const void*&, const void*,
// memory_order, memory_order) volatile;
// bool compare_exchange_weak(const void*&, const void*, memory_order,
// memory_order);
// bool compare_exchange_strong(const void*&, const void*, memory_order,
// memory_order) volatile;
// bool compare_exchange_strong(const void*&, const void*, memory_order,
// memory_order);
// bool compare_exchange_weak(const void*&, const void*,
// memory_order = memory_order_seq_cst) volatile;
// bool compare_exchange_weak(const void*&, const void*,
// memory_order = memory_order_seq_cst);
// bool compare_exchange_strong(const void*&, const void*,
// memory_order = memory_order_seq_cst) volatile;
// bool compare_exchange_strong(const void*&, const void*,
// memory_order = memory_order_seq_cst);
// void* fetch_add(ptrdiff_t, memory_order = memory_order_seq_cst) volatile;
// void* fetch_add(ptrdiff_t, memory_order = memory_order_seq_cst);
// void* fetch_sub(ptrdiff_t, memory_order = memory_order_seq_cst) volatile;
// void* fetch_sub(ptrdiff_t, memory_order = memory_order_seq_cst);
// atomic_address() = default;
// constexpr atomic_address(void*);
// atomic_address(const atomic_address&) = delete;
// atomic_address& operator=(const atomic_address&) = delete;
// atomic_address& operator=(const atomic_address&) volatile = delete;
// void* operator=(const void*) volatile;
// void* operator=(const void*);
// void* operator+=(ptrdiff_t) volatile;
// void* operator+=(ptrdiff_t);
// void* operator-=(ptrdiff_t) volatile;
// void* operator-=(ptrdiff_t);
// } atomic_address;
//
// bool atomic_is_lock_free(const volatile atomic_address*);
// bool atomic_is_lock_free(const atomic_address*);
// void atomic_init(volatile atomic_address*, void*);
// void atomic_init(atomic_address*, void*);
// void atomic_store(volatile atomic_address*, void*);
// void atomic_store(atomic_address*, void*);
// void atomic_store_explicit(volatile atomic_address*, void*, memory_order);
// void atomic_store_explicit(atomic_address*, void*, memory_order);
// void* atomic_load(const volatile atomic_address*);
// void* atomic_load(const atomic_address*);
// void* atomic_load_explicit(const volatile atomic_address*, memory_order);
// void* atomic_load_explicit(const atomic_address*, memory_order);
// void* atomic_exchange(volatile atomic_address*, void*);
// void* atomic_exchange(atomic_address*, void*);
// void* atomic_exchange_explicit(volatile atomic_address*, void*, memory_order);
// void* atomic_exchange_explicit(atomic_address*, void*, memory_order);
// bool atomic_compare_exchange_weak(volatile atomic_address*, void**, void*);
// bool atomic_compare_exchange_weak(atomic_address*, void**, void*);
// bool atomic_compare_exchange_strong(volatile atomic_address*, void**, void*);
// bool atomic_compare_exchange_strong(atomic_address*, void**, void*);
// bool atomic_compare_exchange_weak_explicit(volatile atomic_address*, void**,
// void*, memory_order, memory_order);
// bool atomic_compare_exchange_weak_explicit(atomic_address*, void**, void*,
// memory_order, memory_order);
// bool atomic_compare_exchange_strong_explicit(volatile atomic_address*, void**,
// void*, memory_order, memory_order);
// bool atomic_compare_exchange_strong_explicit(atomic_address*, void**, void*,
// memory_order, memory_order);
// void* atomic_fetch_add(volatile atomic_address*, ptrdiff_t);
// void* atomic_fetch_add(atomic_address*, ptrdiff_t);
// void* atomic_fetch_add_explicit(volatile atomic_address*, ptrdiff_t,
// memory_order);
// void* atomic_fetch_add_explicit(atomic_address*, ptrdiff_t, memory_order);
// void* atomic_fetch_sub(volatile atomic_address*, ptrdiff_t);
// void* atomic_fetch_sub(atomic_address*, ptrdiff_t);
// void* atomic_fetch_sub_explicit(volatile atomic_address*, ptrdiff_t,
// memory_order);
// void* atomic_fetch_sub_explicit(atomic_address*, ptrdiff_t, memory_order);
#include <atomic>
#include <cassert>
template <class A, class T>
void
do_test()
{
A obj(T(0));
assert(obj == T(0));
std::atomic_init(&obj, T(1));
assert(obj == T(1));
std::atomic_init(&obj, T(2));
assert(obj == T(2));
bool b0 = obj.is_lock_free();
obj.store(T(0));
assert(obj == T(0));
obj.store(T(1), std::memory_order_release);
assert(obj == T(1));
assert(obj.load() == T(1));
assert(obj.load(std::memory_order_acquire) == T(1));
assert(obj.exchange(T(2)) == T(1));
assert(obj == T(2));
assert(obj.exchange(T(3), std::memory_order_relaxed) == T(2));
assert(obj == T(3));
T x = obj;
assert(obj.compare_exchange_weak(x, T(2)) == true);
assert(obj == T(2));
assert(x == T(3));
assert(obj.compare_exchange_weak(x, T(1)) == false);
assert(obj == T(2));
assert(x == T(2));
assert(obj.compare_exchange_strong(x, T(1)) == true);
assert(obj == T(1));
assert(x == T(2));
assert(obj.compare_exchange_strong(x, T(0)) == false);
assert(obj == T(1));
assert(x == T(1));
assert((obj = T(0)) == T(0));
assert(obj == T(0));
obj = T(2);
assert((obj += std::ptrdiff_t(3)) == T(5));
assert(obj == T(5));
assert((obj -= std::ptrdiff_t(3)) == T(2));
assert(obj == T(2));
std::atomic_init(&obj, T(1));
assert(obj == T(1));
bool b1 = std::atomic_is_lock_free(&obj);
std::atomic_store(&obj, T(0));
assert(obj == T(0));
std::atomic_store_explicit(&obj, T(1), std::memory_order_release);
assert(obj == T(1));
assert(std::atomic_load(&obj) == T(1));
assert(std::atomic_load_explicit(&obj, std::memory_order_acquire) == T(1));
assert(std::atomic_exchange(&obj, T(2)) == T(1));
assert(obj == T(2));
assert(std::atomic_exchange_explicit(&obj, T(3), std::memory_order_relaxed) == T(2));
assert(obj == T(3));
x = obj;
assert(std::atomic_compare_exchange_weak(&obj, &x, T(2)) == true);
assert(obj == T(2));
assert(x == T(3));
assert(std::atomic_compare_exchange_weak(&obj, &x, T(1)) == false);
assert(obj == T(2));
assert(x == T(2));
assert(std::atomic_compare_exchange_strong(&obj, &x, T(1)) == true);
assert(obj == T(1));
assert(x == T(2));
assert(std::atomic_compare_exchange_strong(&obj, &x, T(0)) == false);
assert(obj == T(1));
assert(x == T(1));
assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, T(2),
std::memory_order_relaxed, std::memory_order_relaxed) == true);
assert(obj == T(2));
assert(x == T(1));
assert(std::atomic_compare_exchange_weak_explicit(&obj, &x, T(3),
std::memory_order_relaxed, std::memory_order_relaxed) == false);
assert(obj == T(2));
assert(x == T(2));
assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, T(3),
std::memory_order_relaxed, std::memory_order_relaxed) == true);
assert(obj == T(3));
assert(x == T(2));
assert(std::atomic_compare_exchange_strong_explicit(&obj, &x, T(0),
std::memory_order_relaxed, std::memory_order_relaxed) == false);
assert(obj == T(3));
assert(x == T(3));
assert((obj = T(1)) == T(1));
assert(obj == T(1));
obj = T(2);
assert(std::atomic_fetch_add(&obj, std::ptrdiff_t(3)) == T(2));
assert(obj == T(5));
assert(std::atomic_fetch_add_explicit(&obj, std::ptrdiff_t(3), std::memory_order_seq_cst) == T(5));
assert(obj == T(8));
assert(std::atomic_fetch_sub(&obj, std::ptrdiff_t(3)) == T(8));
assert(obj == T(5));
assert(std::atomic_fetch_sub_explicit(&obj, std::ptrdiff_t(3), std::memory_order_seq_cst) == T(5));
assert(obj == T(2));
}
template <class A, class T>
void test()
{
do_test<A, T>();
do_test<volatile A, T>();
}
int main()
{
test<std::atomic_address, void*>();
}