std::atomic<T>::atomic
atomic() noexcept = default; | (1) | (since C++11) |
constexpr atomic( T desired ) noexcept; | (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.
Parameters
| desired | - | value to initialize with |
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.
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