Cleanup xmalloc.

* admin/coccinelle/xzalloc.cocci: Semantic patch to convert
calls to xmalloc with following memset to xzalloc.
* src/lisp.h (xzalloc): New prototype.  Omit needless casts.
* src/alloc.c (xzalloc): New function.  Omit needless casts.
* src/charset.c: Omit needless casts.  Convert all calls to
malloc with following memset to xzalloc.
* src/dispnew.c: Likewise.
* src/fringe.c: Likewise.
* src/image.c: Likewise.
* src/sound.c: Likewise.
* src/term.c: Likewise.
* src/w32fns.c: Likewise.
* src/w32font.c: Likewise.
* src/w32term.c: Likewise.
* src/xfaces.c: Likewise.
* src/xfns.c: Likewise.
* src/xterm.c: Likewise.
* src/atimer.c: Omit needless casts.
* src/buffer.c: Likewise.
* src/callproc.c: Likewise.
* src/ccl.c: Likewise.
* src/coding.c: Likewise.
* src/composite.c: Likewise.
* src/doc.c: Likewise.
* src/doprnt.c: Likewise.
* src/editfns.c: Likewise.
* src/emacs.c: Likewise.
* src/eval.c: Likewise.
* src/filelock.c: Likewise.
* src/fns.c: Likewise.
* src/gtkutil.c: Likewise.
* src/keyboard.c: Likewise.
* src/lisp.h: Likewise.
* src/lread.c: Likewise.
* src/minibuf.c: Likewise.
* src/msdos.c: Likewise.
* src/print.c: Likewise.
* src/process.c: Likewise.
* src/region-cache.c: Likewise.
* src/search.c: Likewise.
* src/sysdep.c: Likewise.
* src/termcap.c: Likewise.
* src/terminal.c: Likewise.
* src/tparam.c: Likewise.
* src/w16select.c: Likewise.
* src/w32.c: Likewise.
* src/w32reg.c: Likewise.
* src/w32select.c: Likewise.
* src/w32uniscribe.c: Likewise.
* src/widget.c: Likewise.
* src/xdisp.c: Likewise.
* src/xmenu.c: Likewise.
* src/xrdb.c: Likewise.
* src/xselect.c: Likewise.

1 files changed, 4 insertions, 4 deletions

diff --git a/src/xrdb.c b/src/xrdb.c
index 58ca682c757..1e68205b630 100644
--- a/src/xrdb.c
+++ b/src/xrdb.c
@@ -87,7 +87,7 @@ x_get_customization_string (XrmDatabase db, const char *name,
 
   if (result)
     {
-      char *copy = (char *) xmalloc (strlen (result) + 1);
+      char *copy = xmalloc (strlen (result) + 1);
       strcpy (copy, result);
       return copy;
     }
@@ -132,7 +132,7 @@ magic_file_p (const char *string, ptrdiff_t string_len, const char *class,
   char *lang = getenv ("LANG");
 
   ptrdiff_t path_size = 100;
-  char *path = (char *) xmalloc (path_size);
+  char *path = xmalloc (path_size);
   ptrdiff_t path_len = 0;
 
   const char *p = string;
@@ -258,7 +258,7 @@ gethomedir (void)
   if (ptr == NULL)
     return xstrdup ("/");
 
-  copy = (char *) xmalloc (strlen (ptr) + 2);
+  copy = xmalloc (strlen (ptr) + 2);
   strcpy (copy, ptr);
   strcat (copy, "/");
 
@@ -400,7 +400,7 @@ get_user_db (Display *display)
       char *xdefault;
 
       home = gethomedir ();
-      xdefault = (char *) xmalloc (strlen (home) + sizeof (".Xdefaults"));
+      xdefault = xmalloc (strlen (home) + sizeof (".Xdefaults"));
       strcpy (xdefault, home);
       strcat (xdefault, ".Xdefaults");
       db = XrmGetFileDatabase (xdefault);