[Issue 10135] core.bitop: btc, btr, btc is "pure" but have side effects

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10135


Alex Rønne Petersen <alex at lycus.org> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |alex at lycus.org
         Resolution|                            |INVALID


--- Comment #2 from Alex Rønne Petersen <alex at lycus.org> 2013-05-23 10:16:55 CEST ---
Yes, they are pure per the D definition. Even if a function mutates the memory
pointed to by a pointer given to the function, it is still pure because that
pointer is considered an input.

See: http://klickverbot.at/blog/2012/05/purity-in-d/

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