std::atomic_flag::atomic_flag
From cppreference.com
< cpp | atomic | atomic flag
| Defined in header <atomic>
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atomic_flag() noexcept = default; |
(since C++11) (until C++20) |
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| constexpr atomic_flag() noexcept; |
(since C++20) | |
| atomic_flag( const atomic_flag& ) = delete; |
(2) | (since C++11) |
Constructs a new std::atomic_flag.
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1) Trivial default constructor, initializes std::atomic_flag to unspecified state.
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(until C++20) |
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1) Initializes std::atomic_flag to clear state.
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(since C++20) |
2) The copy constructor is deleted; std::atomic_flag is not copyable.
In addition, std::atomic_flag can be value-initialized to clear state with the expression ATOMIC_FLAG_INIT. For an atomic_flag with static storage duration, this guarantees static initialization: the flag can be used in constructors of static objects.
See also
| (C++11) |
initializes an std::atomic_flag to false (macro constant) |