Make intersectBy lazier
authorDaniel Fischer <daniel.is.fischer@web.de>
Thu, 30 Sep 2010 19:17:31 +0000 (19:17 +0000)
committerDaniel Fischer <daniel.is.fischer@web.de>
Thu, 30 Sep 2010 19:17:31 +0000 (19:17 +0000)
commit3541a11faa9cc6b8ca7063b7e6421cb0385997fa
treee942e2d416affad9ecaa3fa535ca6c5db03a4bc2
parent8a37d80b44f75105c23b62f89bb7806b1c331c26
Make intersectBy lazier
Add shortcuts to intersectBy for empty list arguments.
In addition to being faster in that case, more inputs yield defined results.
Treats ticket #4323
Data/List.hs