More xmalloc and related cleanup.

* alloc.c, bidi.c, buffer.c, buffer.h, bytecode.c, callint.c:
* callproc.c, charset.c, coding.c, composite.c, data.c, dispnew.c:
* doc.c, editfns.c, emacs.c, eval.c, fileio.c, filelock.c, fns.c:
* font.c, fontset.c, frame.c, fringe.c, ftfont.c, ftxfont.c, gmalloc.c:
* gtkutil.c, image.c, keyboard.c, keymap.c, lread.c, macros.c, menu.c:
* nsfns.m, nsfont.m, nsmenu.m, nsterm.m, print.c, process.c, ralloc.c:
* regex.c, region-cache.c, scroll.c, search.c, sound.c, syntax.c:
* sysdep.c, term.c, termcap.c, unexmacosx.c, window.c, xdisp.c:
* xfaces.c, xfns.c, xftfont.c, xgselect.c, xmenu.c, xrdb.c, xselect.c:
* xterm.c:
Omit needless casts involving void * pointers and allocation.
Prefer "P = xmalloc (sizeof *P)" to "P = xmalloc (sizeof (TYPE_OF_P))",
as the former is more robust if P's type is changed.
Prefer xzalloc to xmalloc + memset 0.
Simplify malloc-or-realloc to realloc.
Don't worry about xmalloc returning a null pointer.
Prefer xstrdup to xmalloc + strcpy.
* editfns.c (Fmessage_box): Grow message_text by at least 80 when
growing it.
* keyboard.c (apply_modifiers_uncached): Prefer local array to
alloca of a constant.

1 files changed, 2 insertions, 3 deletions

diff --git a/src/menu.c b/src/menu.c
index 598385c38c0..3b8ebb65d2c 100644
--- a/src/menu.c
+++ b/src/menu.c
@@ -632,8 +632,7 @@ digest_single_submenu (int start, int end, int top_level_items)
   widget_value **submenu_stack;
   int panes_seen = 0;
 
-  submenu_stack
-    = (widget_value **) alloca (menu_items_used * sizeof (widget_value *));
+  submenu_stack = alloca (menu_items_used * sizeof *submenu_stack);
   wv = xmalloc_widget_value ();
   wv->name = "menu";
   wv->value = 0;
@@ -893,7 +892,7 @@ find_and_call_menu_selection (FRAME_PTR f, int menu_bar_items_used, Lisp_Object
   int i;
 
   entry = Qnil;
-  subprefix_stack = (Lisp_Object *) alloca (menu_bar_items_used * sizeof (Lisp_Object));
+  subprefix_stack = alloca (menu_bar_items_used * sizeof *subprefix_stack);
   prefix = Qnil;
   i = 0;