DOKK / manpages / debian 11 / libstdc++-9-doc / std::once_flag.3cxx.en
std::once_flag(3cxx) std::once_flag(3cxx)

std::once_flag - once_flag


constexpr once_flag () noexcept=default
Constructor. once_flag (const once_flag &)=delete
Deleted copy constructor. once_flag & operator= (const once_flag &)=delete
Deleted assignment operator.


template<typename _Callable , typename... _Args> void call_once (once_flag &__once, _Callable &&__f, _Args &&... __args)
call_once

once_flag

Definition at line 628 of file mutex.

Constructor.

Deleted copy constructor.

once_flag& std::once_flag::operator= (const once_flag &) [delete]

Deleted assignment operator.

call_once

Definition at line 666 of file mutex.

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Sun Feb 7 2021 libstdc++