| std::once_flag(3cxx) | std::once_flag(3cxx) |
std::once_flag - Flag type used by std::call_once.
#include <mutex>
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)
Invoke a callable and synchronize with other calls using the same flag.
Flag type used by std::call_once.
Deleted copy constructor.
Deleted assignment operator.
Invoke a callable and synchronize with other calls using the same flag.
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| libstdc++ |