Threads and Shared Variables in C++11
Speakers: Hans Boehm
In spite of over 40 years of shared memory parallel programming, there has been a surprising amount of confusion surrounding the basic meaning of shared variables. C++11 both added threads to the language, and clarified the behavior of shared variables. The approach relies on a careful definition of a "data race", which is treated as an error, and a guarantee of expected behavior in the absence of such data races. We'll quickly introduce some of the thread support features in C++11 and then describe the rules for programming with shared variables. We'll illustrate the finer points of the "data race" definition by going through a number of small examples. Much of this is also applicable to C11.
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