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-rw-r--r--src/editfns.c18
1 files changed, 7 insertions, 11 deletions
diff --git a/src/editfns.c b/src/editfns.c
index 5ca68d4f37a..d4146cefb92 100644
--- a/src/editfns.c
+++ b/src/editfns.c
@@ -397,14 +397,14 @@ get_pos_property (Lisp_Object position, register Lisp_Object prop, Lisp_Object o
/* First try with room for 40 overlays. */
noverlays = 40;
- overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object));
+ overlay_vec = alloca (noverlays * sizeof *overlay_vec);
noverlays = overlays_around (posn, overlay_vec, noverlays);
/* If there are more than 40,
make enough space for all, and try again. */
if (noverlays > 40)
{
- overlay_vec = (Lisp_Object *) alloca (noverlays * sizeof (Lisp_Object));
+ overlay_vec = alloca (noverlays * sizeof *overlay_vec);
noverlays = overlays_around (posn, overlay_vec, noverlays);
}
noverlays = sort_overlays (overlay_vec, noverlays, NULL);
@@ -1330,7 +1330,7 @@ name, or nil if there is no such user. */)
Lisp_Object login;
login = Fuser_login_name (make_number (pw->pw_uid));
- r = (char *) alloca (strlen (p) + SCHARS (login) + 1);
+ r = alloca (strlen (p) + SCHARS (login) + 1);
memcpy (r, p, q - p);
r[q - p] = 0;
strcat (r, SSDATA (login));
@@ -2154,7 +2154,7 @@ set_time_zone_rule (const char *tzstring)
for (from = environ; *from; from++)
continue;
envptrs = from - environ + 2;
- newenv = to = xmalloc (envptrs * sizeof (char *)
+ newenv = to = xmalloc (envptrs * sizeof *newenv
+ (tzstring ? strlen (tzstring) + 4 : 0));
/* Add TZSTRING to the end of environ, as a value for TZ. */
@@ -3472,15 +3472,11 @@ usage: (message-box FORMAT-STRING &rest ARGS) */)
}
#endif /* HAVE_MENUS */
/* Copy the data so that it won't move when we GC. */
- if (! message_text)
- {
- message_text = xmalloc (80);
- message_length = 80;
- }
if (SBYTES (val) > message_length)
{
- message_text = (char *) xrealloc (message_text, SBYTES (val));
- message_length = SBYTES (val);
+ ptrdiff_t new_length = SBYTES (val) + 80;
+ message_text = xrealloc (message_text, new_length);
+ message_length = new_length;
}
memcpy (message_text, SDATA (val), SBYTES (val));
message2 (message_text, SBYTES (val),