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std::once_flag(3cxx) std::once_flag(3cxx)

NAME

std::once_flag - Flag type used by std::call_once.

SYNOPSIS

Public Member Functions


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.

Friends


template<typename _Callable , typename... _Args> void call_once (once_flag &__once, _Callable &&__f, _Args &&... __args)
Invoke a callable and synchronize with other calls using the same flag.

Detailed Description

Flag type used by std::call_once.

Definition at line 672 of file mutex.

Author

Generated automatically by Doxygen for libstdc++ from the source code.

Sun Jan 10 2021 libstdc++