chapel-lang/chapel — pull request #428 by benharsh (2014-09-15 20:26:21+00:00)
Title: New op= for associative domain set operations

Prior to this patch, the op= functions for associative domains were being handled by the generic domain op= functions. Those generic functions don't quite follow the set rules we've decided on. For example, the "-=" operation would halt if the second domain argument did not contain indices that were in the first domain.

Instead, let's write our own op= functions to be sure the desired functionality is operational.