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authorDavid Feuer <david.feuer@gmail.com>2017-03-14 19:53:39 -0400
committerDavid Feuer <David.Feuer@gmail.com>2017-03-14 19:53:41 -0400
commit5d9378efdaa9aafaac2c9180c7156bca31297c30 (patch)
tree457174c1f114190efd8562d11abecba80b528343 /compiler/utils/Exception.hs
parentd357f526582e3c4cd4fbda5d73695fc81121b69a (diff)
downloadhaskell-5d9378efdaa9aafaac2c9180c7156bca31297c30.tar.gz
Reimplement minusList using Set
`minusList ms ns` was `O(m*n)`. Now it's `O((m + n) log n)`, which should be a bit better. Reviewers: austin, bgamari, mpickering Reviewed By: mpickering Subscribers: mpickering, rwbarton, thomie Differential Revision: https://phabricator.haskell.org/D3341
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