Section: 20 [library] Status: Resolved Submitter: LWG Opened: 2009-06-28 Last modified: 2016-02-10
Priority: Not Prioritized
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Addresses US 63
The behavior of the library in the presence of threads is incompletely specified.
For example, if thread 1 assigns to X, then writes data to file f, which is read by thread 2, and then accesses variable X, is thread 2 guaranteed to be able to see the value assigned to X by thread 1? In other words, does the write of the data "happen before" the read?
Another example: does simultaneous access using operator at() to different characters in the same non-const string really introduce a data race?
17 SG: should go to threads group; misclassified in document
Concurrency SG: Create an issue. Hans will look into it.
[ 2009 Santa Cruz: ]
Move to "Open". Hans and the rest of the concurrency working group will study this. We can't make progress without a thorough review and a paper.
[ 2010 Pittsburgh: Moved to NAD Editorial. Rationale added below. ]
Solved by N3069.