JuliaLang/julia — pull request #860 by mlubin (2012-05-22 04:13:43+00:00)
Title: Add destructive version of sparse lufact

As discussed on irc with Viral, lufact! should avoid making a copy of the
original matrix. It assumes ownership and clears the user's matrix to
indicate such. This isn't entirely foolproof; the user could break
things by keeping a reference to the original arrays and modifying them
after calling lufact!.