std::once_flag(3cxx) std::once_flag(3cxx)
NAME
std::once_flag - Flag type used by std::call_once.
SYNOPSIS
#include <mutex>
Public Member Functions
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.
Constructor & Destructor Documentation
std::once_flag::once_flag (const once_flag &) [delete]
Deleted copy constructor.
Member Function Documentation
once_flag & std::once_flag::operator= (const once_flag &) [delete]
Deleted assignment operator.
Friends And Related Symbol Documentation
template<typename _Callable , typename... _Args> void call_once (once_flag &
__once, _Callable && __f, _Args &&... __args) [friend]
Invoke a callable and synchronize with other calls using the same flag.
Author
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libstdc++ std::once_flag(3cxx)
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