diff options
| author | dgp <dgp@users.sourceforge.net> | 2003-11-17 18:28:42 (GMT) |
|---|---|---|
| committer | dgp <dgp@users.sourceforge.net> | 2003-11-17 18:28:42 (GMT) |
| commit | 045babb25ab5747e5f2aef179ea9233f9b76aff2 (patch) | |
| tree | 1ee6ca8eede308e994d13cf7dfe8b1ae2cfe8007 | |
| parent | 2dd07a1b8cbd0b5e2874db95e2bbc5d82deb8522 (diff) | |
| download | tcl-045babb25ab5747e5f2aef179ea9233f9b76aff2.zip tcl-045babb25ab5747e5f2aef179ea9233f9b76aff2.tar.gz tcl-045babb25ab5747e5f2aef179ea9233f9b76aff2.tar.bz2 | |
more details on the regexp fix.
| -rw-r--r-- | ChangeLog | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -2,6 +2,16 @@ * tests/reg.test: Added tests for [Bugs 230589, 504785, 505048, 840258] recently fixed by 2003-11-15 commit to regcomp.c by Pavel Goran. + His notes on the fix: This bug results from an error in code that + splits states into "progress" and "no-progress" ones. This error + causes an interesting situation with the pre-collected single-linked + list of states to be splitted: many items were added to the list, but + only several of them are accessible from the list beginning, + since the "tmp" member of struct state (which is used here to + hold a pointer to the next list item) gets overwritten, which + results in a "looped" chain. As a result, not all of states are + splitted, and one state is splitted two times, causing incorrect + "no-progress" flag values. 2003-11-16 Donal K. Fellows <donal.k.fellows@man.ac.uk> |