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I read a note in the book C How to Program 7th about some new standard C storage class named _Thread_local:
The new C standard adds storage class specifier
_Thread_local, which
is beyond this book’s scope.
I looked for it in Google and here but nothing show up. Could someone please provide me some link about it?
Variables marked with
_Thread_localare given “thread” storage duration — that is, they are allocated when a thread begins, and deallocated when the thread ends. Such variables are “local” to the thread, since every thread has its own copy of the variable. This is in contrast to static storage duration (one instance of the variable for the entire program). See http://en.cppreference.com/w/c/language/storage_class_specifiers for more details.