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Diffstat (limited to 'doc/diffutils.texi')
| -rw-r--r-- | doc/diffutils.texi | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/diffutils.texi b/doc/diffutils.texi index b478380..ceaf557 100644 --- a/doc/diffutils.texi +++ b/doc/diffutils.texi @@ -161,7 +161,10 @@ The algorithm was independently discovered as described by Esko Ukkonen in @c Date: Wed, 29 Sep 1993 08:27:55 MST @c Ukkonen should be given credit for also discovering the algorithm used @c in GNU diff. -Related algorithms are surveyed by Alfred V. Aho in +Unless the @option{--minimal} option is used, @command{diff} uses a +heuristic by Paul Eggert that limits the cost to @math{O(N^1.5 log N)} +at the price of producing suboptimal output for large inputs with many +differences. Related algorithms are surveyed by Alfred V. Aho in section 6.3 of ``Algorithms for Finding Patterns in Strings'', @cite{Handbook of Theoretical Computer Science} (Jan Van Leeuwen, ed.), Vol.@: A, @cite{Algorithms and Complexity}, Elsevier/MIT Press, |