Allow a WordFM iterator to be initialised so as to exclude all key
values below a given value.  This allows efficiently iterating over
small subsets of a mapping.  Use this in Helgrind to avoid a
performance bad case.  Patch from Konstantin Serebryany.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@7353 a5019735-40e9-0310-863c-91ae7b9d1cf9
3 files changed