Remove unnecessary casts.

* xterm.c (x_term_init):
* xfns.c (x_set_border_pixel):
* widget.c (create_frame_gcs): Remove casts to unsigned long etc.
These aren't needed now that we assume ANSI C.

src/ChangeLog

 2011-06-13  Paul Eggert  <eggert@cs.ucla.edu>
 
+	Remove unnecessary casts.
+	* xterm.c (x_term_init):
+	* xfns.c (x_set_border_pixel):
+	* widget.c (create_frame_gcs): Remove casts to unsigned long etc.
+	These aren't needed now that we assume ANSI C.
+
 	* sound.c (Fplay_sound_internal): Remove cast to unsigned long.
 	It's more likely to cause problems (due to unsigned overflow)
 	than to cure them.

src/widget.c

@@ -523,14 +523,11 @@ create_frame_gcs (ew)
   struct frame *s = ew->emacs_frame.frame;
 
   s->output_data.x->normal_gc
-    = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)),
-		 (unsigned long)0, (XGCValues *)0);
+    = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)), 0, 0);
   s->output_data.x->reverse_gc
-    = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)),
-		 (unsigned long)0, (XGCValues *)0);
+    = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)), 0, 0);
   s->output_data.x->cursor_gc
-    = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)),
-		 (unsigned long)0, (XGCValues *)0);
+    = XCreateGC (XtDisplay (ew), RootWindowOfScreen (XtScreen (ew)), 0, 0);
   s->output_data.x->black_relief.gc = 0;
   s->output_data.x->white_relief.gc = 0;
 }
@@ -589,8 +586,7 @@ setup_frame_gcs (EmacsFrame ew)
     = XCreatePixmapFromBitmapData (XtDisplay(ew),
 				   RootWindowOfScreen (XtScreen (ew)),
 				   setup_frame_cursor_bits, 2, 2,
-				   (unsigned long)0, (unsigned long)1,
-				   ew->core.depth);
+				   0, 1, ew->core.depth);
 
   /* Normal video */
   gc_values.foreground = ew->emacs_frame.foreground_pixel;

src/xfns.c

@@ -1074,8 +1074,7 @@ x_set_border_pixel (struct frame *f, int pix)
   if (FRAME_X_WINDOW (f) != 0 && f->border_width > 0)
     {
       BLOCK_INPUT;
-      XSetWindowBorder (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f),
-			(unsigned long)pix);
+      XSetWindowBorder (FRAME_X_DISPLAY (f), FRAME_X_WINDOW (f), pix);
       UNBLOCK_INPUT;
 
       if (FRAME_VISIBLE_P (f))

src/xterm.c

@@ -10268,7 +10268,7 @@ x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
       = XCreatePixmapFromBitmapData (dpyinfo->display, dpyinfo->root_window,
 				     gray_bitmap_bits,
 				     gray_bitmap_width, gray_bitmap_height,
-				     (unsigned long) 1, (unsigned long) 0, 1);
+				     1, 0, 1);
   }
 
 #ifdef HAVE_X_I18N