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| author | Eli Zaretskii <eliz@gnu.org> | 2013-11-16 11:27:19 +0200 |
|---|---|---|
| committer | Eli Zaretskii <eliz@gnu.org> | 2013-11-16 11:27:19 +0200 |
| commit | 3d6dec8d1ef99202a00c58a6ebdc3aaac7d83de6 (patch) | |
| tree | ed5ad2da4625ee00c65db2fe318e2c717bd4f32f | |
| parent | 43cebc237c147aecf53b6d2dc64f5df3e92b4d98 (diff) | |
| download | emacs-3d6dec8d1ef99202a00c58a6ebdc3aaac7d83de6.tar.gz | |
Fix bug #15907 with crashes due to after-change-functions.
src/keymap.c (describe_map): Don't crash if PT is 1 both before and
after inserting the description string.
| -rw-r--r-- | src/ChangeLog | 5 | ||||
| -rw-r--r-- | src/keymap.c | 7 |
2 files changed, 10 insertions, 2 deletions
diff --git a/src/ChangeLog b/src/ChangeLog index f92eb7b85fc..696475c17e5 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,3 +1,8 @@ +2013-11-16 Eli Zaretskii <eliz@gnu.org> + + * keymap.c (describe_map): Don't crash if PT is 1 both before and + after inserting the description string. (Bug#15907) + 2013-11-15 Paul Eggert <eggert@cs.ucla.edu> * data.c: Work around bogus GCC diagnostic about shift count. diff --git a/src/keymap.c b/src/keymap.c index 7a18cd5d983..562787ee8a5 100644 --- a/src/keymap.c +++ b/src/keymap.c @@ -3383,9 +3383,12 @@ describe_map (Lisp_Object map, Lisp_Object prefix, if (vect[i].shadowed) { - SET_PT (PT - 1); + ptrdiff_t pt = max (PT - 1, BEG); + + SET_PT (pt); insert_string ("\n (that binding is currently shadowed by another mode)"); - SET_PT (PT + 1); + pt = min (PT + 1, Z); + SET_PT (pt); } } |