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/termcap.c b/src/termcap.c
index 61f9d9a31ea..ea096d789da 100644
--- a/src/termcap.c
+++ b/src/termcap.c
@@ -153,7 +153,7 @@ tgetst1 (char *ptr, char **area)
       p = ptr;
       while ((c = *p++) && c != ':' && c != '\n')
         ;
-      ret = (char *) xmalloc (p - ptr + 1);
+      ret = xmalloc (p - ptr + 1);
     }
   else
     ret = *area;
@@ -377,7 +377,7 @@ tgetent (char *bp, const char *name)
       if (!bp)
         {
           malloc_size = 1 + strlen (term);
-          bp = (char *) xmalloc (malloc_size);
+          bp = xmalloc (malloc_size);
         }
       strcpy (bp, term);
       goto ret;
@@ -440,13 +440,13 @@ tgetent (char *bp, const char *name)
 
   buf.size = BUFSIZE;
   /* Add 1 to size to ensure room for terminating null.  */
-  buf.beg = (char *) xmalloc (buf.size + 1);
+  buf.beg = xmalloc (buf.size + 1);
   term = indirect ? indirect : (char *)name;
 
   if (!bp)
     {
       malloc_size = indirect ? strlen (tcenv) + 1 : buf.size;
-      bp = (char *) xmalloc (malloc_size);
+      bp = xmalloc (malloc_size);
     }
   tc_search_point = bp1 = bp;