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Fix overflow lockup with frames > 255 lines

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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
This commit is contained in:
Scott Corley 2018-10-07 23:21:40 -07:00 • committed by Paul Eggert
parent 14c032d5f8
commit 940ae15604
1 changed files with 3 additions and 3 deletions
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6
src/scroll.c
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@ -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 *,