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/process.c b/src/process.c
index a251e08a4db..3f329872c76 100644
--- a/src/process.c
+++ b/src/process.c
@@ -3316,7 +3316,7 @@ usage: (make-network-process &rest ARGS)  */)
         {
           if (datagram_address[s].sa)
             abort ();
-          datagram_address[s].sa = (struct sockaddr *) xmalloc (lres->ai_addrlen);
+          datagram_address[s].sa = xmalloc (lres->ai_addrlen);
           datagram_address[s].len = lres->ai_addrlen;
           if (is_server)
             {
@@ -6286,7 +6286,7 @@ process has been transmitted to the serial port.  */)
 
       if (!proc_encode_coding_system[new_outfd])
         proc_encode_coding_system[new_outfd]
-          = (struct coding_system *) xmalloc (sizeof (struct coding_system));
+          = xmalloc (sizeof (struct coding_system));
       memcpy (proc_encode_coding_system[new_outfd],
               proc_encode_coding_system[old_outfd],
               sizeof (struct coding_system));
@@ -7084,7 +7084,7 @@ setup_process_coding_systems (Lisp_Object process)
 
   if (!proc_decode_coding_system[inch])
     proc_decode_coding_system[inch]
-      = (struct coding_system *) xmalloc (sizeof (struct coding_system));
+      = xmalloc (sizeof (struct coding_system));
   coding_system = p->decode_coding_system;
   if (! NILP (p->filter))
     ;
@@ -7097,7 +7097,7 @@ setup_process_coding_systems (Lisp_Object process)
 
   if (!proc_encode_coding_system[outch])
     proc_encode_coding_system[outch]
-      = (struct coding_system *) xmalloc (sizeof (struct coding_system));
+      = xmalloc (sizeof (struct coding_system));
   setup_coding_system (p->encode_coding_system,
                        proc_encode_coding_system[outch]);
 #endif