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authorScott Corley <scott@scorley.com>2018-10-07 23:21:40 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2018-10-07 23:22:50 -0700
commit940ae156043c27101759c1577697d3a09d5bc948 (patch)
tree9dc79fd3ab6bdba58984226bef9f4d92e07532b3 /src/scroll.c
parent14c032d5f8d4ccb608cc906db34ddf17ce465449 (diff)
downloademacs-940ae156043c27101759c1577697d3a09d5bc948.tar.gz
Fix overflow lockup with frames > 255 lines
Backport from master. * src/scroll.c (struct matrix_elt): Change unsigned char fields to int to handle frames with more than 255 lines (Bug#32951). Copyright-paperwork-exempt: yes
Diffstat (limited to 'src/scroll.c')
-rw-r--r--src/scroll.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/scroll.c b/src/scroll.c
index 8a53f9614f7..7751a0885a1 100644
--- a/src/scroll.c
+++ b/src/scroll.c
@@ -47,13 +47,13 @@ struct matrix_elt
int deletecost;
/* Number of inserts so far in this run of inserts,
for the cost in insertcost. */
- unsigned char insertcount;
+ int insertcount;
/* Number of deletes so far in this run of deletes,
for the cost in deletecost. */
- unsigned char deletecount;
+ int deletecount;
/* Number of writes so far since the last insert
or delete for the cost in writecost. */
- unsigned char writecount;
+ int writecount;
};
static void do_direct_scrolling (struct frame *,