std::atomic::atomic
From cppreference.com
| atomic() = default; |
(1) | (since C++11) |
| constexpr atomic( T desired ); |
(2) | (since C++11) |
| atomic( const atomic& ) = delete; |
(3) | (since C++11) |
Constructs new atomic variable.
1) The default constructor is trivial: no initialization takes place other than zero initialization of static and thread-local objects. std::atomic_init may be used to complete initialization.
2) Initializes the underlying value with
desired. The initialization is not atomic.3) Atomic variables are not
CopyConstructible.[edit] Parameters
| desired | - | value to initialize with |
[edit] Exceptions
noexcept specification:
noexcept
[edit] Notes
The default-initialized std::atomic<T> does not contain a T object, and its only valid uses are destruction and initialization by std::atomic_init, see LWG 2334