* term.c (get_named_tty, create_tty_output, tty_free_frame_resources)

(tty_free_frame_resources, delete_tty): Prefer eassert to emacs_abort.
* image.c (make_image_cache): For struct image_cache, prefer xmalloc
to xzalloc and so avoid redundant call to memset.
* xterm.c (x_term_init): Avoid unnecessary initializations of dpyinfo
members because it is allocated with xzalloc and so already zeroed.

4 files changed, 20 insertions, 41 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 43e9bca061b..0d3982618b7 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2013-08-15  Dmitry Antipov  <dmantipov@yandex.ru>
+
+        * term.c (get_named_tty, create_tty_output, tty_free_frame_resources)
+        (tty_free_frame_resources, delete_tty): Prefer eassert to emacs_abort.
+        * image.c (make_image_cache): For struct image_cache, prefer xmalloc
+        to xzalloc and so avoid redundant call to memset.
+        * xterm.c (x_term_init): Avoid unnecessary initializations of dpyinfo
+        members because it is allocated with xzalloc and so already zeroed.
+
 2013-08-14  Ken Brown  <kbrown@cornell.edu>
 
         * gmalloc.c (memalign) [CYGWIN]: Rename to emacs_memalign
diff --git a/src/image.c b/src/image.c
index f71ba211d44..8d969a6f9c6 100644
--- a/src/image.c
+++ b/src/image.c
@@ -1360,14 +1360,12 @@ static void cache_image (struct frame *f, struct image *img);
 struct image_cache *
 make_image_cache (void)
 {
-  struct image_cache *c = xzalloc (sizeof *c);
-  int size;
-
-  size = 50;
-  c->images = xmalloc (size * sizeof *c->images);
-  c->size = size;
-  size = IMAGE_CACHE_BUCKETS_SIZE * sizeof *c->buckets;
-  c->buckets = xzalloc (size);
+  struct image_cache *c = xmalloc (sizeof *c);
+
+  c->size = 50;
+  c->used = c->refcount = 0;
+  c->images = xmalloc (c->size * sizeof *c->images);
+  c->buckets = xzalloc (IMAGE_CACHE_BUCKETS_SIZE * sizeof *c->buckets);
   return c;
 }
 
diff --git a/src/term.c b/src/term.c
index fb69aefbe7a..2966466aed2 100644
--- a/src/term.c
+++ b/src/term.c
@@ -2233,8 +2233,7 @@ get_named_tty (const char *name)
 {
   struct terminal *t;
 
-  if (!name)
-    emacs_abort ();
+  eassert (name);
 
   for (t = terminal_list; t; t = t->next_terminal)
     {
@@ -2786,8 +2785,7 @@ create_tty_output (struct frame *f)
 {
   struct tty_output *t = xzalloc (sizeof *t);
 
-  if (! FRAME_TERMCAP_P (f))
-    emacs_abort ();
+  eassert (FRAME_TERMCAP_P (f));
 
   t->display_info = FRAME_TERMINAL (f)->display_info.tty;
 
@@ -2799,8 +2797,7 @@ create_tty_output (struct frame *f)
 static void
 tty_free_frame_resources (struct frame *f)
 {
-  if (! FRAME_TERMCAP_P (f))
-    emacs_abort ();
+  eassert (FRAME_TERMCAP_P (f));
 
   if (FRAME_FACE_CACHE (f))
     free_frame_faces (f);
@@ -2815,8 +2812,7 @@ tty_free_frame_resources (struct frame *f)
 static void
 tty_free_frame_resources (struct frame *f)
 {
-  if (! FRAME_TERMCAP_P (f) && ! FRAME_MSDOS_P (f))
-    emacs_abort ();
+  eassert (FRAME_TERMCAP_P (f) || FRAME_MSDOS_P (f));
 
   if (FRAME_FACE_CACHE (f))
     free_frame_faces (f);
@@ -3443,8 +3439,7 @@ delete_tty (struct terminal *terminal)
   if (!terminal->name)
     return;
 
-  if (terminal->type != output_termcap)
-    emacs_abort ();
+  eassert (terminal->type == output_termcap);
 
   tty = terminal->display_info.tty;
 
diff --git a/src/xterm.c b/src/xterm.c
index 9e1e32a2faf..b5c5a5cb584 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -10080,33 +10080,15 @@ x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
   select_visual (dpyinfo);
   dpyinfo->cmap = DefaultColormapOfScreen (dpyinfo->screen);
   dpyinfo->root_window = RootWindowOfScreen (dpyinfo->screen);
-  dpyinfo->client_leader_window = 0;
-  dpyinfo->grabbed = 0;
-  dpyinfo->reference_count = 0;
   dpyinfo->icon_bitmap_id = -1;
-  dpyinfo->n_fonts = 0;
-  dpyinfo->bitmaps = 0;
-  dpyinfo->bitmaps_size = 0;
-  dpyinfo->bitmaps_last = 0;
-  dpyinfo->scratch_cursor_gc = 0;
-  hlinfo->mouse_face_mouse_frame = 0;
   hlinfo->mouse_face_beg_row = hlinfo->mouse_face_beg_col = -1;
   hlinfo->mouse_face_end_row = hlinfo->mouse_face_end_col = -1;
   hlinfo->mouse_face_face_id = DEFAULT_FACE_ID;
   hlinfo->mouse_face_window = Qnil;
   hlinfo->mouse_face_overlay = Qnil;
-  hlinfo->mouse_face_mouse_x = hlinfo->mouse_face_mouse_y = 0;
-  hlinfo->mouse_face_defer = 0;
-  hlinfo->mouse_face_hidden = 0;
-  dpyinfo->x_focus_frame = 0;
-  dpyinfo->x_focus_event_frame = 0;
-  dpyinfo->x_highlight_frame = 0;
   dpyinfo->wm_type = X_WMTYPE_UNKNOWN;
 
   /* See if we can construct pixel values from RGB values.  */
-  dpyinfo->red_bits = dpyinfo->blue_bits = dpyinfo->green_bits = 0;
-  dpyinfo->red_offset = dpyinfo->blue_offset = dpyinfo->green_offset = 0;
-
   if (dpyinfo->visual->class == TrueColor)
     {
       get_bits_and_offset (dpyinfo->visual->red_mask,
@@ -10267,14 +10249,9 @@ x_term_init (Lisp_Object display_name, char *xrm_option, char *resource_name)
   }
 
   dpyinfo->x_dnd_atoms_size = 8;
-  dpyinfo->x_dnd_atoms_length = 0;
   dpyinfo->x_dnd_atoms = xmalloc (sizeof *dpyinfo->x_dnd_atoms
                                   * dpyinfo->x_dnd_atoms_size);
 
-  dpyinfo->net_supported_atoms = NULL;
-  dpyinfo->nr_net_supported_atoms = 0;
-  dpyinfo->net_supported_window = 0;
-
   connection = ConnectionNumber (dpyinfo->display);
   dpyinfo->connection = connection;
   dpyinfo->gray