Omit some unnecessary casts.

Many of these go back to the old pre-C89 days, when they may have
been needed, but we've been assuming C89 or later for a while now.
* alloc.c (live_string_p, live_cons_p, live_symbol_p)
(live_float_p, live_misc_p, live_vector_p):
* buffer.c (compare_overlays, cmp_for_strings, mmap_find)
(mmap_alloc, alloc_buffer_text, enlarge_buffer_text)
(defvar_per_buffer):
* callint.c (Fcall_interactively):
* doc.c (Fsubstitute_command_keys):
* filelock.c (get_boot_time):
* frame.c (xrdb_get_resource):
* gtkutil.c (hierarchy_ch_cb, qttip_cb, style_changed_cb)
(delete_cb, xg_dialog_response_cb, xg_maybe_add_timer)
(xg_get_file_name_from_selector, menuitem_destroy_callback)
(menuitem_highlight_callback, menu_destroy_callback)
(xg_update_menu_item, xg_modify_menubar_widgets, menubar_map_cb)
(xg_tool_bar_callback, xg_get_tool_bar_widgets)
(xg_tool_bar_detach_callback, xg_tool_bar_attach_callback)
(xg_tool_bar_help_callback, tb_size_cb):
* image.c (xpm_alloc_color, png_read_from_memory)
(png_read_from_file, png_load_body, our_memory_skip_input_data)
(jpeg_memory_src, jpeg_file_src, imagemagick_load_image)
(syms_of_image):
* keymap.c (describe_map):
* nsfns.m (Fns_display_monitor_attributes_list):
* nsmenu.m (process_dialog:):
* nsterm.m (hold_event):
* process.c (wait_reading_process_output):
* regex.c (REGEX_REALLOCATE, re_set_registers, re_exec, regexec):
* scroll.c (do_direct_scrolling, scrolling_1):
* termcap.c (tgetent):
* window.c (check_window_containing, add_window_to_list)
(freeze_window_starts):
* xdisp.c (compare_overlay_entries, vmessage):
* xfns.c (x_window, x_get_monitor_attributes_xinerama)
(x_get_monitor_attributes_xrandr)
(Fx_display_monitor_attributes_list, x_display_info_for_name)
(Fx_open_connection, file_dialog_cb, file_dialog_unmap_cb):
* xfont.c (xfont_match, xfont_open):
* xmenu.c (x_menu_wait_for_event, menu_highlight_callback)
(menubar_selection_callback, menu_position_func)
(popup_selection_callback, create_and_show_popup_menu)
(dialog_selection_callback, create_and_show_dialog):
* xrdb.c (x_get_string_resource):
(main) [TESTRM]:
* xsmfns.c (x_session_check_input):
* xterm.c (x_draw_glyphless_glyph_string_foreground)
(xm_scroll_callback, xg_scroll_callback, xg_end_scroll_callback)
(xaw_jump_callback, xaw_scroll_callback):
Omit unnecessary casts.

1 files changed, 11 insertions, 20 deletions

diff --git a/src/xfns.c b/src/xfns.c
index 92a7964eb7..4f728ad59b 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -2331,12 +2331,8 @@ x_window (struct frame *f, long window_prompting, int minibuffer_only)
   /* maybe_set_screen_title_format (shell_widget); */
 
   pane_widget = lw_create_widget ("main", "pane", widget_id_tick++,
-				  (widget_value *) NULL,
-				  shell_widget, False,
-				  (lw_callback) NULL,
-				  (lw_callback) NULL,
-				  (lw_callback) NULL,
-				  (lw_callback) NULL);
+				  NULL, shell_widget, False,
+				  NULL, NULL, NULL, NULL);
 
   ac = 0;
   XtSetArg (al[ac], XtNvisual, FRAME_X_VISUAL (f)); ac++;
@@ -2483,8 +2479,7 @@ x_window (struct frame *f, long window_prompting, int minibuffer_only)
      */
   XChangeProperty (XtDisplay (frame_widget), XtWindow (frame_widget),
 		   FRAME_X_DISPLAY_INFO (f)->Xatom_wm_protocols,
-		   XA_ATOM, 32, PropModeAppend,
-		   (unsigned char*) NULL, 0);
+		   XA_ATOM, 32, PropModeAppend, NULL, 0);
 
   /* Make all the standard events reach the Emacs frame.  */
   attributes.event_mask = STANDARD_EVENT_SET;
@@ -4009,7 +4004,7 @@ x_get_monitor_attributes_xinerama (struct x_display_info *dpyinfo)
 			/ x_display_pixel_width (dpyinfo));
   mm_height_per_pixel = ((double) HeightMMOfScreen (dpyinfo->screen)
 			 / x_display_pixel_height (dpyinfo));
-  monitors = (struct MonitorInfo *) xzalloc (n_monitors * sizeof (*monitors));
+  monitors = xzalloc (n_monitors * sizeof *monitors);
   for (i = 0; i < n_monitors; ++i)
     {
       struct MonitorInfo *mi = &monitors[i];
@@ -4069,7 +4064,7 @@ x_get_monitor_attributes_xrandr (struct x_display_info *dpyinfo)
       return Qnil;
     }
   n_monitors = resources->noutput;
-  monitors = (struct MonitorInfo *) xzalloc (n_monitors * sizeof (*monitors));
+  monitors = xzalloc (n_monitors * sizeof *monitors);
 
 #ifdef HAVE_XRRGETOUTPUTPRIMARY
   pxid = XRRGetOutputPrimary (dpy, dpyinfo->root_window);
@@ -4225,7 +4220,7 @@ Internal use only, use `display-monitor-attributes-list' instead.  */)
 #endif
   n_monitors = gdk_screen_get_n_monitors (gscreen);
   monitor_frames = Fmake_vector (make_number (n_monitors), Qnil);
-  monitors = (struct MonitorInfo *) xzalloc (n_monitors * sizeof (*monitors));
+  monitors = xzalloc (n_monitors * sizeof *monitors);
 
   FOR_EACH_FRAME (rest, frame)
     {
@@ -4463,8 +4458,7 @@ x_display_info_for_name (Lisp_Object name)
 
   validate_x_resource_name ();
 
-  dpyinfo = x_term_init (name, (char *)0,
-			 SSDATA (Vx_resource_name));
+  dpyinfo = x_term_init (name, 0, SSDATA (Vx_resource_name));
 
   if (dpyinfo == 0)
     error ("Cannot connect to X server %s", SDATA (name));
@@ -4497,10 +4491,7 @@ terminate Emacs if we can't open the connection.
     error ("Not using X Windows"); /* That doesn't stop us anymore. */
 #endif
 
-  if (! NILP (xrm_string))
-    xrm_option = SSDATA (xrm_string);
-  else
-    xrm_option = (char *) 0;
+  xrm_option = NILP (xrm_string) ? 0 : SSDATA (xrm_string);
 
   validate_x_resource_name ();
 
@@ -5724,8 +5715,8 @@ DEFUN ("x-uses-old-gtk-dialog", Fx_uses_old_gtk_dialog,
 static void
 file_dialog_cb (Widget widget, XtPointer client_data, XtPointer call_data)
 {
-  int *result = (int *) client_data;
-  XmAnyCallbackStruct *cb = (XmAnyCallbackStruct *) call_data;
+  int *result = client_data;
+  XmAnyCallbackStruct *cb = call_data;
   *result = cb->reason;
 }
 
@@ -5738,7 +5729,7 @@ file_dialog_cb (Widget widget, XtPointer client_data, XtPointer call_data)
 static void
 file_dialog_unmap_cb (Widget widget, XtPointer client_data, XtPointer call_data)
 {
-  int *result = (int *) client_data;
+  int *result = client_data;
   *result = XmCR_CANCEL;
 }