On Sat, 25 Oct 2014 23:41:52 +0200, Wolfgang Maier wrote: > ... It may be rare to use an expression both for its side-effects and > its return value ...
A lot of concurrency-related operations work that way. In the old days, it was CPU-level Test and Set (or Compare and Set) instructions. These days, we have Python's threading.Lock.acquire. Dan -- https://mail.python.org/mailman/listinfo/python-list
