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* bug#8873: Integer overflow and signedness fixes (2011-06-15 batch)
@ 2011-06-15 19:53 Paul Eggert
       [not found] ` <handler.8873.B.130816768116759.ack@debbugs.gnu.org>
  0 siblings, 1 reply; 2+ messages in thread
From: Paul Eggert @ 2011-06-15 19:53 UTC (permalink / raw)
  To: 8873

This is a followup to Emacs bug 8794, where I wrote that
I was squashing int-overflow bugs while making another patch.
Here's the first batch of these bug fixes.  Individually they're
all fairly trivial but collectively they're big enough so that
it's probably worth a bug report.  I plan to install this patch
shortly.

# Bazaar merge directive format 2 (Bazaar 0.90)
# revision_id: eggert@cs.ucla.edu-20110615194052-ckpvo0l7qr44bqlp
# target_branch: bzr+ssh://eggert@bzr.savannah.gnu.org/emacs/trunk
# testament_sha1: c229ce990f77f2c9841a0da12d97cf2969430203
# timestamp: 2011-06-15 12:47:49 -0700
# base_revision_id: eggert@cs.ucla.edu-20110615185018-wrgk8r9xdltspb7e
# 
# Begin patch
=== modified file 'src/ChangeLog'
--- src/ChangeLog	2011-06-15 18:36:00 +0000
+++ src/ChangeLog	2011-06-15 19:40:52 +0000
@@ -1,3 +1,253 @@
+2011-06-15  Paul Eggert  <eggert@cs.ucla.edu>
+
+	Integer overflow and signedness fixes.
+
+	* ccl.c (ASCENDING_ORDER): New macro, to work around GCC bug 43772.
+	(GET_CCL_RANGE, IN_INT_RANGE): Use it.
+
+	* fileio.c: Don't assume EMACS_INT fits in off_t.
+	(emacs_lseek): New static function.
+	(Finsert_file_contents, Fwrite_region): Use it.
+	Use SEEK_SET, SEEK_CUR, SEEK_END as appropriate.
+
+	* fns.c (Fload_average): Don't assume 100 * load average fits in int.
+
+	* fns.c: Don't overflow int when computing a list length.
+	* fns.c (QUIT_COUNT_HEURISTIC): New constant.
+	(Flength, Fsafe_length): Use EMACS_INT, not int, to avoid unwanted
+	truncation on 64-bit hosts.  Check for QUIT every
+	QUIT_COUNT_HEURISTIC entries rather than every other entry; that's
+	faster and is responsive enough.
+	(Flength): Report an error instead of overflowing an integer.
+	(Fsafe_length): Return a float if the value is not representable
+	as a fixnum.  This shouldn't happen except in contrived situations.
+	(Fnthcdr, Fsort): Don't assume list length fits in int.
+	(Fcopy_sequence): Don't assume vector length fits in int.
+
+	* alloc.c: Check that resized vectors' lengths fit in fixnums.
+	(header_size, word_size): New constants.
+	(allocate_vectorlike): Don't check size overflow here.
+	(allocate_vector): Check it here instead, since this is the only
+	caller of allocate_vectorlike that could cause overflow.
+	Check that the new vector's length is representable as a fixnum.
+
+	* fns.c (next_almost_prime): Don't return a multiple of 3 or 5.
+	The previous code was bogus.  For example, next_almost_prime (32)
+	returned 39, which is undesirable as it is a multiple of 3; and
+	next_almost_prime (24) returned 25, which is a multiple of 5 so
+	why was the code bothering to check for multiples of 7?
+
+	* bytecode.c (exec_byte_code): Use ptrdiff_t, not int, for vector length.
+
+	* eval.c, doprnt.c (SIZE_MAX): Remove; inttypes.h defines this now.
+
+	Variadic C functions now count arguments with ptrdiff_t.
+	This partly undoes my 2011-03-30 change, which replaced int with size_t.
+	Back then I didn't know that the Emacs coding style prefers signed int.
+	Also, in the meantime I found a few more instances where arguments
+	were being counted with int, which may truncate counts on 64-bit
+	machines, or EMACS_INT, which may be unnecessarily wide.
+	* lisp.h (struct Lisp_Subr.function.aMANY)
+	(DEFUN_ARGS_MANY, internal_condition_case_n, safe_call):
+	Arg counts are now ptrdiff_t, not size_t.
+	All variadic functions and their callers changed accordingly.
+	(struct gcpro.nvars): Now size_t, not size_t.  All uses changed.
+	* bytecode.c (exec_byte_code): Check maxdepth for overflow,
+	to avoid potential buffer overrun.  Don't assume arg counts fit in 'int'.
+	* callint.c (Fcall_interactively): Check arg count for overflow,
+	to avoid potential buffer overrun.  Use signed char, not 'int',
+	for 'varies' array, so that we needn't bother to check its size
+	calculation for overflow.
+	* editfns.c (Fformat): Use ptrdiff_t, not EMACS_INT, to count args.
+	* eval.c (apply_lambda):
+	* fns.c (Fmapconcat): Use XFASTINT, not XINT, to get args length.
+	(struct textprop_rec.argnum): Now ptrdiff_t, not int.  All uses changed.
+	(mapconcat): Use ptrdiff_t, not int and EMACS_INT, to count args.
+
+	* callint.c (Fcall_interactively): Don't use index var as event count.
+
+	* vm-limit.c (check_memory_limits): Fix incorrect extern function decls.
+	* mem-limits.h (SIZE): Remove; no longer used.
+
+	* xterm.c (x_alloc_nearest_color_1): Prefer int to long when int works.
+
+	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.
+
+	* dired.c (Ffile_attributes): Don't use 32-bit hack on 64-bit hosts.
+
+	* unexelf.c (unexec): Don't assume BSS addr fits in unsigned.
+
+	* xterm.c (handle_one_xevent): Omit unnecessary casts to unsigned.
+
+	* keyboard.c (modify_event_symbol): Don't limit alist len to UINT_MAX.
+
+	* lisp.h (CHAR_TABLE_SET): Omit now-redundant test.
+
+	* lread.c (Fload): Don't compare a possibly-garbage time_t value.
+
+	GLYPH_CODE_FACE returns EMACS_INT, not int.
+	* dispextern.h (merge_faces):
+	* xfaces.c (merge_faces):
+	* xdisp.c (get_next_display_element, next_element_from_display_vector):
+	Don't assume EMACS_INT fits in int.
+
+	* character.h (CHAR_VALID_P): Remove unused parameter.
+	* fontset.c, lisp.h, xdisp.c: All uses changed.
+
+	* editfns.c (Ftranslate_region_internal): Omit redundant test.
+
+	* fns.c (concat): Minor tuning based on overflow analysis.
+	This doesn't fix any bugs.  Use int to hold character, instead
+	of constantly refetching from Emacs object.  Use XFASTINT, not
+	XINT, for value known to be a character.  Don't bother comparing
+	a single byte to 0400, as it's always less.
+
+	* floatfns.c (Fexpt):
+	* fileio.c (make_temp_name): Omit unnecessary cast to unsigned.
+
+	* editfns.c (Ftranslate_region_internal): Use int, not EMACS_INT
+	for characters.
+
+	* doc.c (get_doc_string): Omit (unsigned)c that mishandled negatives.
+
+	* data.c (Faset): If ARRAY is a string, check that NEWELT is a char.
+	Without this fix, on a 64-bit host (aset S 0 4294967386) would
+	incorrectly succeed when S was a string, because 4294967386 was
+	truncated before it was used.
+
+	* chartab.c (Fchar_table_range): Use CHARACTERP to check range.
+	Otherwise, an out-of-range integer could cause undefined behavior
+	on a 64-bit host.
+
+	* composite.c: Use int, not EMACS_INT, for characters.
+	(fill_gstring_body, composition_compute_stop_pos): Use int, not
+	EMACS_INT, for values that are known to be in character range.
+	This doesn't fix any bugs but is the usual style inside Emacs and
+	may generate better code on 32-bit machines.
+
+	Make sure a 64-bit char is never passed to ENCODE_CHAR.
+	This is for reasons similar to the recent CHAR_STRING fix.
+	* charset.c (Fencode_char): Check that character arg is actually
+	a character.  Pass an int to ENCODE_CHAR.
+	* charset.h (ENCODE_CHAR): Verify that the character argument is no
+	wider than 'int', as a compile-time check to prevent future regressions
+	in this area.
+
+	* character.c (char_string): Remove unnecessary casts.
+
+	Make sure a 64-bit char is never passed to CHAR_STRING.
+	Otherwise, CHAR_STRING would do the wrong thing on a 64-bit platform,
+	by silently ignoring the top 32 bits, allowing some values
+	that were far too large to be valid characters.
+	* character.h: Include <verify.h>.
+	(CHAR_STRING, CHAR_STRING_ADVANCE): Verify that the character
+	arguments are no wider than unsigned, as a compile-time check
+	to prevent future regressions in this area.
+	* data.c (Faset):
+	* editfns.c (Fchar_to_string, general_insert_function, Finsert_char)
+	(Fsubst_char_in_region):
+	* fns.c (concat):
+	* xdisp.c (decode_mode_spec_coding):
+	Adjust to CHAR_STRING's new requirement.
+	* editfns.c (Finsert_char, Fsubst_char_in_region):
+	* fns.c (concat): Check that character args are actually
+	characters.  Without this test, these functions did the wrong
+	thing with wildly out-of-range values on 64-bit hosts.
+
+	Remove incorrect casts to 'unsigned' that lose info on 64-bit hosts.
+	These casts should not be needed on 32-bit hosts, either.
+	* keyboard.c (read_char):
+	* lread.c (Fload): Remove casts to unsigned.
+
+	* lisp.h (UNSIGNED_CMP): New macro.
+	This fixes comparison bugs on 64-bit hosts.
+	(ASCII_CHAR_P): Use it.
+	* casefiddle.c (casify_object):
+	* character.h (ASCII_BYTE_P, CHAR_VALID_P)
+	(SINGLE_BYTE_CHAR_P, CHAR_STRING):
+	* composite.h (COMPOSITION_ENCODE_RULE_VALID):
+	* dispextern.h (FACE_FROM_ID):
+	* keyboard.c (read_char): Use UNSIGNED_CMP.
+
+	* xmenu.c (dialog_selection_callback) [!USE_GTK]: Cast to intptr_t,
+	not to EMACS_INT, to avoid GCC warning.
+
+	* xfns.c (x_set_scroll_bar_default_width): Remove unused 'int' locals.
+
+	* buffer.h (PTR_BYTE_POS, BUF_PTR_BYTE_POS): Remove harmful cast.
+	The cast incorrectly truncated 64-bit byte offsets to 32 bits, and
+	isn't needed on 32-bit machines.
+
+	* buffer.c (Fgenerate_new_buffer_name):
+	Use EMACS_INT for count, not int.
+	(advance_to_char_boundary): Return EMACS_INT, not int.
+
+	* data.c (Qcompiled_function): Now static.
+
+	* window.c (window_body_lines): Now static.
+
+	* image.c (gif_load): Rename local to avoid shadowing.
+
+	* lisp.h (SAFE_ALLOCA_LISP): Check for integer overflow.
+	(struct Lisp_Save_Value): Use ptrdiff_t, not int, for 'integer' member.
+	* alloc.c (make_save_value): Integer argument is now of type
+	ptrdiff_t, not int.
+	(mark_object): Use ptrdiff_t, not int.
+	* lisp.h (pD): New macro.
+	* print.c (print_object): Use it.
+
+	* alloc.c: Use EMACS_INT, not int, to count objects.
+	(total_conses, total_markers, total_symbols, total_vector_size)
+	(total_free_conses, total_free_markers, total_free_symbols)
+	(total_free_floats, total_floats, total_free_intervals)
+	(total_intervals, total_strings, total_free_strings):
+	Now EMACS_INT, not int.  All uses changed.
+	(Fgarbage_collect): Compute overall total using a double, so that
+	integer overflow is less likely to be a problem.  Check for overflow
+	when converting back to an integer.
+	(n_interval_blocks, n_string_blocks, n_float_blocks, n_cons_blocks)
+	(n_vectors, n_symbol_blocks, n_marker_blocks): Remove.
+	These were 'int' variables that could overflow on 64-bit hosts;
+	they were never used, so remove them instead of repairing them.
+	(nzombies, ngcs, max_live, max_zombies): Now EMACS_INT, not 'int'.
+	(inhibit_garbage_collection): Set gc_cons_threshold to max value.
+	Previously, this ceilinged at INT_MAX, but that doesn't work on
+	64-bit machines.
+	(allocate_pseudovector): Don't use EMACS_INT when int would do.
+
+	* alloc.c (Fmake_bool_vector): Don't assume vector size fits in int.
+	(allocate_vectorlike): Check for ptrdiff_t overflow.
+	(mark_vectorlike, mark_char_table, mark_object): Avoid EMACS_UINT
+	when a (possibly-narrower) signed value would do just as well.
+	We prefer using signed arithmetic, to avoid comparison confusion.
+
+	* alloc.c: Catch some string size overflows that we were missing.
+	(XMALLOC_OVERRUN_CHECK_SIZE) [!XMALLOC_OVERRUN_CHECK]: Define to 0,
+	for convenience in STRING_BYTES_MAX.
+	(STRING_BYTES_MAX): New macro, superseding the old one in lisp.h.
+	The definition here is exact; the one in lisp.h was approximate.
+	(allocate_string_data): Check for string overflow.  This catches
+	some instances we weren't catching before.  Also, it catches
+	size_t overflow on (unusual) hosts where SIZE_MAX <= min
+	(PTRDIFF_MAX, MOST_POSITIVE_FIXNUM), e.g., when size_t is 32 bits
+	and ptrdiff_t and EMACS_INT are both 64 bits.
+
+	* character.c, coding.c, doprnt.c, editfns.c, eval.c:
+	All uses of STRING_BYTES_MAX replaced by STRING_BYTES_BOUND.
+	* lisp.h (STRING_BYTES_BOUND): Renamed from STRING_BYTES_MAX.
+
+	* character.c (string_escape_byte8): Fix nbytes/nchars typo.
+
+	* alloc.c (Fmake_string): Check for out-of-range init.
+
 2011-06-15  Stefan Monnier  <monnier@iro.umontreal.ca>
 
 	* eval.c (Fdefvaralias): Also mark the target as variable-special-p.

=== modified file 'src/alloc.c'
--- src/alloc.c	2011-06-06 19:43:39 +0000
+++ src/alloc.c	2011-06-14 21:30:16 +0000
@@ -180,9 +180,9 @@
 
 /* Number of live and free conses etc.  */
 
-static int total_conses, total_markers, total_symbols, total_vector_size;
-static int total_free_conses, total_free_markers, total_free_symbols;
-static int total_free_floats, total_floats;
+static EMACS_INT total_conses, total_markers, total_symbols, total_vector_size;
+static EMACS_INT total_free_conses, total_free_markers, total_free_symbols;
+static EMACS_INT total_free_floats, total_floats;
 
 /* Points to memory space allocated as "spare", to be freed if we run
    out of memory.  We keep one large block, four cons-blocks, and
@@ -485,7 +485,9 @@
 }
 
 
-#ifdef XMALLOC_OVERRUN_CHECK
+#ifndef XMALLOC_OVERRUN_CHECK
+#define XMALLOC_OVERRUN_CHECK_SIZE 0
+#else
 
 /* Check for overrun in malloc'ed buffers by wrapping a 16 byte header
    and a 16 byte trailer around each block.
@@ -1336,16 +1338,12 @@
 
 /* Number of free and live intervals.  */
 
-static int total_free_intervals, total_intervals;
+static EMACS_INT total_free_intervals, total_intervals;
 
 /* List of free intervals.  */
 
 static INTERVAL interval_free_list;
 
-/* Total number of interval blocks now in use.  */
-
-static int n_interval_blocks;
-
 
 /* Initialize interval allocation.  */
 
@@ -1355,7 +1353,6 @@
   interval_block = NULL;
   interval_block_index = INTERVAL_BLOCK_SIZE;
   interval_free_list = 0;
-  n_interval_blocks = 0;
 }
 
 
@@ -1387,7 +1384,6 @@
 	  newi->next = interval_block;
 	  interval_block = newi;
 	  interval_block_index = 0;
-	  n_interval_blocks++;
 	}
       val = &interval_block->intervals[interval_block_index++];
     }
@@ -1580,10 +1576,9 @@
 
 static struct sblock *large_sblocks;
 
-/* List of string_block structures, and how many there are.  */
+/* List of string_block structures.  */
 
 static struct string_block *string_blocks;
-static int n_string_blocks;
 
 /* Free-list of Lisp_Strings.  */
 
@@ -1591,7 +1586,7 @@
 
 /* Number of live and free Lisp_Strings.  */
 
-static int total_strings, total_free_strings;
+static EMACS_INT total_strings, total_free_strings;
 
 /* Number of bytes used by live strings.  */
 
@@ -1659,6 +1654,18 @@
 
 #define GC_STRING_EXTRA (GC_STRING_OVERRUN_COOKIE_SIZE)
 
+/* Exact bound on the number of bytes in a string, not counting the
+   terminating null.  A string cannot contain more bytes than
+   STRING_BYTES_BOUND, nor can it be so long that the size_t
+   arithmetic in allocate_string_data would overflow while it is
+   calculating a value to be passed to malloc.  */
+#define STRING_BYTES_MAX					  \
+  min (STRING_BYTES_BOUND,					  \
+       ((SIZE_MAX - XMALLOC_OVERRUN_CHECK_SIZE - GC_STRING_EXTRA  \
+	 - offsetof (struct sblock, first_data)			  \
+	 - SDATA_DATA_OFFSET)					  \
+	& ~(sizeof (EMACS_INT) - 1)))
+
 /* Initialize string allocation.  Called from init_alloc_once.  */
 
 static void
@@ -1667,7 +1674,6 @@
   total_strings = total_free_strings = total_string_size = 0;
   oldest_sblock = current_sblock = large_sblocks = NULL;
   string_blocks = NULL;
-  n_string_blocks = 0;
   string_free_list = NULL;
   empty_unibyte_string = make_pure_string ("", 0, 0, 0);
   empty_multibyte_string = make_pure_string ("", 0, 0, 1);
@@ -1799,7 +1805,6 @@
       memset (b, 0, sizeof *b);
       b->next = string_blocks;
       string_blocks = b;
-      ++n_string_blocks;
 
       for (i = STRING_BLOCK_SIZE - 1; i >= 0; --i)
 	{
@@ -1858,6 +1863,9 @@
   struct sblock *b;
   EMACS_INT needed, old_nbytes;
 
+  if (STRING_BYTES_MAX < nbytes)
+    string_overflow ();
+
   /* Determine the number of bytes needed to store NBYTES bytes
      of string data.  */
   needed = SDATA_SIZE (nbytes);
@@ -2025,7 +2033,6 @@
 	  && total_free_strings > STRING_BLOCK_SIZE)
 	{
 	  lisp_free (b);
-	  --n_string_blocks;
 	  string_free_list = free_list_before;
 	}
       else
@@ -2186,9 +2193,9 @@
   EMACS_INT nbytes;
 
   CHECK_NATNUM (length);
-  CHECK_NUMBER (init);
+  CHECK_CHARACTER (init);
 
-  c = XINT (init);
+  c = XFASTINT (init);
   if (ASCII_CHAR_P (c))
     {
       nbytes = XINT (length);
@@ -2229,7 +2236,6 @@
 {
   register Lisp_Object val;
   struct Lisp_Bool_Vector *p;
-  int real_init, i;
   EMACS_INT length_in_chars, length_in_elts;
   int bits_per_value;
 
@@ -2251,9 +2257,7 @@
   p = XBOOL_VECTOR (val);
   p->size = XFASTINT (length);
 
-  real_init = (NILP (init) ? 0 : -1);
-  for (i = 0; i < length_in_chars ; i++)
-    p->data[i] = real_init;
+  memset (p->data, NILP (init) ? 0 : -1, length_in_chars);
 
   /* Clear the extraneous bits in the last byte.  */
   if (XINT (length) != length_in_chars * BOOL_VECTOR_BITS_PER_CHAR)
@@ -2463,10 +2467,6 @@
 
 static int float_block_index;
 
-/* Total number of float blocks now in use.  */
-
-static int n_float_blocks;
-
 /* Free-list of Lisp_Floats.  */
 
 static struct Lisp_Float *float_free_list;
@@ -2480,7 +2480,6 @@
   float_block = NULL;
   float_block_index = FLOAT_BLOCK_SIZE; /* Force alloc of new float_block.   */
   float_free_list = 0;
-  n_float_blocks = 0;
 }
 
 
@@ -2514,7 +2513,6 @@
 	  memset (new->gcmarkbits, 0, sizeof new->gcmarkbits);
 	  float_block = new;
 	  float_block_index = 0;
-	  n_float_blocks++;
 	}
       XSETFLOAT (val, &float_block->floats[float_block_index]);
       float_block_index++;
@@ -2579,10 +2577,6 @@
 
 static struct Lisp_Cons *cons_free_list;
 
-/* Total number of cons blocks now in use.  */
-
-static int n_cons_blocks;
-
 
 /* Initialize cons allocation.  */
 
@@ -2592,7 +2586,6 @@
   cons_block = NULL;
   cons_block_index = CONS_BLOCK_SIZE; /* Force alloc of new cons_block.  */
   cons_free_list = 0;
-  n_cons_blocks = 0;
 }
 
 
@@ -2636,7 +2629,6 @@
 	  new->next = cons_block;
 	  cons_block = new;
 	  cons_block_index = 0;
-	  n_cons_blocks++;
 	}
       XSETCONS (val, &cons_block->conses[cons_block_index]);
       cons_block_index++;
@@ -2705,7 +2697,7 @@
        doc: /* Return a newly created list with specified arguments as elements.
 Any number of arguments, even zero arguments, are allowed.
 usage: (list &rest OBJECTS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   register Lisp_Object val;
   val = Qnil;
@@ -2775,10 +2767,12 @@
 
 static struct Lisp_Vector *all_vectors;
 
-/* Total number of vector-like objects now in use.  */
-
-static int n_vectors;
-
+/* Handy constants for vectorlike objects.  */
+enum
+  {
+    header_size = offsetof (struct Lisp_Vector, contents),
+    word_size = sizeof (Lisp_Object)
+  };
 
 /* Value is a pointer to a newly allocated Lisp_Vector structure
    with room for LEN Lisp_Objects.  */
@@ -2788,11 +2782,6 @@
 {
   struct Lisp_Vector *p;
   size_t nbytes;
-  int header_size = offsetof (struct Lisp_Vector, contents);
-  int word_size = sizeof p->contents[0];
-
-  if ((SIZE_MAX - header_size) / word_size < len)
-    memory_full (SIZE_MAX);
 
   MALLOC_BLOCK_INPUT;
 
@@ -2822,18 +2811,22 @@
 
   MALLOC_UNBLOCK_INPUT;
 
-  ++n_vectors;
   return p;
 }
 
 
-/* Allocate a vector with NSLOTS slots.  */
+/* Allocate a vector with LEN slots.  */
 
 struct Lisp_Vector *
-allocate_vector (EMACS_INT nslots)
+allocate_vector (EMACS_INT len)
 {
-  struct Lisp_Vector *v = allocate_vectorlike (nslots);
-  v->header.size = nslots;
+  struct Lisp_Vector *v;
+  ptrdiff_t nbytes_max = min (PTRDIFF_MAX, SIZE_MAX);
+
+  if (min ((nbytes_max - header_size) / word_size, MOST_POSITIVE_FIXNUM) < len)
+    memory_full (SIZE_MAX);
+  v = allocate_vectorlike (len);
+  v->header.size = len;
   return v;
 }
 
@@ -2844,7 +2837,7 @@
 allocate_pseudovector (int memlen, int lisplen, EMACS_INT tag)
 {
   struct Lisp_Vector *v = allocate_vectorlike (memlen);
-  EMACS_INT i;
+  int i;
 
   /* Only the first lisplen slots will be traced normally by the GC.  */
   for (i = 0; i < lisplen; ++i)
@@ -2925,10 +2918,10 @@
        doc: /* Return a newly created vector with specified arguments as elements.
 Any number of arguments, even zero arguments, are allowed.
 usage: (vector &rest OBJECTS)  */)
-  (register size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   register Lisp_Object len, val;
-  register size_t i;
+  ptrdiff_t i;
   register struct Lisp_Vector *p;
 
   XSETFASTINT (len, nargs);
@@ -2956,15 +2949,15 @@
 arguments will not be dynamically bound but will be instead pushed on the
 stack before executing the byte-code.
 usage: (make-byte-code ARGLIST BYTE-CODE CONSTANTS DEPTH &optional DOCSTRING INTERACTIVE-SPEC &rest ELEMENTS)  */)
-  (register size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   register Lisp_Object len, val;
-  register size_t i;
+  ptrdiff_t i;
   register struct Lisp_Vector *p;
 
   XSETFASTINT (len, nargs);
   if (!NILP (Vpurify_flag))
-    val = make_pure_vector ((EMACS_INT) nargs);
+    val = make_pure_vector (nargs);
   else
     val = Fmake_vector (len, Qnil);
 
@@ -3018,10 +3011,6 @@
 
 static struct Lisp_Symbol *symbol_free_list;
 
-/* Total number of symbol blocks now in use.  */
-
-static int n_symbol_blocks;
-
 
 /* Initialize symbol allocation.  */
 
@@ -3031,7 +3020,6 @@
   symbol_block = NULL;
   symbol_block_index = SYMBOL_BLOCK_SIZE;
   symbol_free_list = 0;
-  n_symbol_blocks = 0;
 }
 
 
@@ -3064,7 +3052,6 @@
 	  new->next = symbol_block;
 	  symbol_block = new;
 	  symbol_block_index = 0;
-	  n_symbol_blocks++;
 	}
       XSETSYMBOL (val, &symbol_block->symbols[symbol_block_index]);
       symbol_block_index++;
@@ -3112,17 +3099,12 @@
 
 static union Lisp_Misc *marker_free_list;
 
-/* Total number of marker blocks now in use.  */
-
-static int n_marker_blocks;
-
 static void
 init_marker (void)
 {
   marker_block = NULL;
   marker_block_index = MARKER_BLOCK_SIZE;
   marker_free_list = 0;
-  n_marker_blocks = 0;
 }
 
 /* Return a newly allocated Lisp_Misc object, with no substructure.  */
@@ -3151,7 +3133,6 @@
 	  new->next = marker_block;
 	  marker_block = new;
 	  marker_block_index = 0;
-	  n_marker_blocks++;
 	  total_free_markers += MARKER_BLOCK_SIZE;
 	}
       XSETMISC (val, &marker_block->markers[marker_block_index]);
@@ -3184,7 +3165,7 @@
    The unwind function can get the C values back using XSAVE_VALUE.  */
 
 Lisp_Object
-make_save_value (void *pointer, int integer)
+make_save_value (void *pointer, ptrdiff_t integer)
 {
   register Lisp_Object val;
   register struct Lisp_Save_Value *p;
@@ -3929,11 +3910,11 @@
 
 /* Number of zombie objects.  */
 
-static int nzombies;
+static EMACS_INT nzombies;
 
 /* Number of garbage collections.  */
 
-static int ngcs;
+static EMACS_INT ngcs;
 
 /* Average percentage of zombies per collection.  */
 
@@ -3941,7 +3922,7 @@
 
 /* Max. number of live and zombie objects.  */
 
-static int max_live, max_zombies;
+static EMACS_INT max_live, max_zombies;
 
 /* Average number of live objects per GC.  */
 
@@ -3952,7 +3933,7 @@
   (void)
 {
   Lisp_Object args[8], zombie_list = Qnil;
-  int i;
+  EMACS_INT i;
   for (i = 0; i < nzombies; i++)
     zombie_list = Fcons (zombies[i], zombie_list);
   args[0] = build_string ("%d GCs, avg live/zombies = %.2f/%.2f (%f%%), max %d/%d\nzombies: %S");
@@ -4262,7 +4243,7 @@
 check_gcpros (void)
 {
   struct gcpro *p;
-  size_t i;
+  ptrdiff_t i;
 
   for (p = gcprolist; p; p = p->next)
     for (i = 0; i < p->nvars; ++i)
@@ -4279,7 +4260,7 @@
 {
   int i;
 
-  fprintf (stderr, "\nZombies kept alive = %d:\n", nzombies);
+  fprintf (stderr, "\nZombies kept alive = %"pI":\n", nzombies);
   for (i = 0; i < min (MAX_ZOMBIES, nzombies); ++i)
     {
       fprintf (stderr, "  %d = ", i);
@@ -4851,9 +4832,8 @@
 inhibit_garbage_collection (void)
 {
   int count = SPECPDL_INDEX ();
-  int nbits = min (VALBITS, BITS_PER_INT);
 
-  specbind (Qgc_cons_threshold, make_number (((EMACS_INT) 1 << (nbits - 1)) - 1));
+  specbind (Qgc_cons_threshold, make_number (MOST_POSITIVE_FIXNUM));
   return count;
 }
 
@@ -4873,7 +4853,7 @@
 {
   register struct specbinding *bind;
   char stack_top_variable;
-  register size_t i;
+  ptrdiff_t i;
   int message_p;
   Lisp_Object total[8];
   int count = SPECPDL_INDEX ();
@@ -5103,9 +5083,10 @@
   if (gc_cons_threshold < 10000)
     gc_cons_threshold = 10000;
 
+  gc_relative_threshold = 0;
   if (FLOATP (Vgc_cons_percentage))
     { /* Set gc_cons_combined_threshold.  */
-      EMACS_INT tot = 0;
+      double tot = 0;
 
       tot += total_conses  * sizeof (struct Lisp_Cons);
       tot += total_symbols * sizeof (struct Lisp_Symbol);
@@ -5116,10 +5097,15 @@
       tot += total_intervals * sizeof (struct interval);
       tot += total_strings * sizeof (struct Lisp_String);
 
-      gc_relative_threshold = tot * XFLOAT_DATA (Vgc_cons_percentage);
+      tot *= XFLOAT_DATA (Vgc_cons_percentage);
+      if (0 < tot)
+	{
+	  if (tot < TYPE_MAXIMUM (EMACS_INT))
+	    gc_relative_threshold = tot;
+	  else
+	    gc_relative_threshold = TYPE_MAXIMUM (EMACS_INT);
+	}
     }
-  else
-    gc_relative_threshold = 0;
 
   if (garbage_collection_messages)
     {
@@ -5250,8 +5236,8 @@
 static void
 mark_vectorlike (struct Lisp_Vector *ptr)
 {
-  register EMACS_UINT size = ptr->header.size;
-  register EMACS_UINT i;
+  EMACS_INT size = ptr->header.size;
+  EMACS_INT i;
 
   eassert (!VECTOR_MARKED_P (ptr));
   VECTOR_MARK (ptr);		/* Else mark it */
@@ -5273,8 +5259,8 @@
 static void
 mark_char_table (struct Lisp_Vector *ptr)
 {
-  register EMACS_UINT size = ptr->header.size & PSEUDOVECTOR_SIZE_MASK;
-  register EMACS_UINT i;
+  int size = ptr->header.size & PSEUDOVECTOR_SIZE_MASK;
+  int i;
 
   eassert (!VECTOR_MARKED_P (ptr));
   VECTOR_MARK (ptr);
@@ -5402,12 +5388,11 @@
 	   recursion there.  */
 	{
 	  register struct Lisp_Vector *ptr = XVECTOR (obj);
-	  register EMACS_UINT size = ptr->header.size;
-	  register EMACS_UINT i;
+	  int size = ptr->header.size & PSEUDOVECTOR_SIZE_MASK;
+	  int i;
 
 	  CHECK_LIVE (live_vector_p);
 	  VECTOR_MARK (ptr);	/* Else mark it */
-	  size &= PSEUDOVECTOR_SIZE_MASK;
 	  for (i = 0; i < size; i++) /* and then mark its elements */
 	    {
 	      if (i != COMPILED_CONSTANTS)
@@ -5534,7 +5519,7 @@
 	    if (ptr->dogc)
 	      {
 		Lisp_Object *p = (Lisp_Object *) ptr->pointer;
-		int nelt;
+		ptrdiff_t nelt;
 		for (nelt = ptr->integer; nelt > 0; nelt--, p++)
 		  mark_maybe_object (*p);
 	      }
@@ -5734,7 +5719,7 @@
     register struct cons_block *cblk;
     struct cons_block **cprev = &cons_block;
     register int lim = cons_block_index;
-    register int num_free = 0, num_used = 0;
+    EMACS_INT num_free = 0, num_used = 0;
 
     cons_free_list = 0;
 
@@ -5795,7 +5780,6 @@
 	    /* Unhook from the free list.  */
 	    cons_free_list = cblk->conses[0].u.chain;
 	    lisp_align_free (cblk);
-	    n_cons_blocks--;
 	  }
 	else
 	  {
@@ -5812,7 +5796,7 @@
     register struct float_block *fblk;
     struct float_block **fprev = &float_block;
     register int lim = float_block_index;
-    register int num_free = 0, num_used = 0;
+    EMACS_INT num_free = 0, num_used = 0;
 
     float_free_list = 0;
 
@@ -5842,7 +5826,6 @@
 	    /* Unhook from the free list.  */
 	    float_free_list = fblk->floats[0].u.chain;
 	    lisp_align_free (fblk);
-	    n_float_blocks--;
 	  }
 	else
 	  {
@@ -5859,7 +5842,7 @@
     register struct interval_block *iblk;
     struct interval_block **iprev = &interval_block;
     register int lim = interval_block_index;
-    register int num_free = 0, num_used = 0;
+    EMACS_INT num_free = 0, num_used = 0;
 
     interval_free_list = 0;
 
@@ -5892,7 +5875,6 @@
 	    /* Unhook from the free list.  */
 	    interval_free_list = INTERVAL_PARENT (&iblk->intervals[0]);
 	    lisp_free (iblk);
-	    n_interval_blocks--;
 	  }
 	else
 	  {
@@ -5909,7 +5891,7 @@
     register struct symbol_block *sblk;
     struct symbol_block **sprev = &symbol_block;
     register int lim = symbol_block_index;
-    register int num_free = 0, num_used = 0;
+    EMACS_INT num_free = 0, num_used = 0;
 
     symbol_free_list = NULL;
 
@@ -5956,7 +5938,6 @@
 	    /* Unhook from the free list.  */
 	    symbol_free_list = sblk->symbols[0].next;
 	    lisp_free (sblk);
-	    n_symbol_blocks--;
 	  }
 	else
 	  {
@@ -5974,7 +5955,7 @@
     register struct marker_block *mblk;
     struct marker_block **mprev = &marker_block;
     register int lim = marker_block_index;
-    register int num_free = 0, num_used = 0;
+    EMACS_INT num_free = 0, num_used = 0;
 
     marker_free_list = 0;
 
@@ -6013,7 +5994,6 @@
 	    /* Unhook from the free list.  */
 	    marker_free_list = mblk->markers[0].u_free.chain;
 	    lisp_free (mblk);
-	    n_marker_blocks--;
 	  }
 	else
 	  {
@@ -6063,7 +6043,6 @@
 	    all_vectors = vector->header.next.vector;
 	  next = vector->header.next.vector;
 	  lisp_free (vector);
-	  n_vectors--;
 	  vector = next;
 
 	}

=== modified file 'src/buffer.c'
--- src/buffer.c	2011-06-11 21:31:32 +0000
+++ src/buffer.c	2011-06-13 08:00:15 +0000
@@ -850,8 +850,8 @@
   (register Lisp_Object name, Lisp_Object ignore)
 {
   register Lisp_Object gentemp, tem;
-  int count;
-  char number[10];
+  EMACS_INT count;
+  char number[INT_BUFSIZE_BOUND (EMACS_INT) + sizeof "<>"];
 
   CHECK_STRING (name);
 
@@ -865,7 +865,7 @@
   count = 1;
   while (1)
     {
-      sprintf (number, "<%d>", ++count);
+      sprintf (number, "<%"pI"d>", ++count);
       gentemp = concat2 (name, build_string (number));
       tem = Fstring_equal (gentemp, ignore);
       if (!NILP (tem))
@@ -1969,7 +1969,7 @@
 /* Advance BYTE_POS up to a character boundary
    and return the adjusted position.  */
 
-static int
+static EMACS_INT
 advance_to_char_boundary (EMACS_INT byte_pos)
 {
   int c;

=== modified file 'src/buffer.h'
--- src/buffer.h	2011-06-10 20:52:30 +0000
+++ src/buffer.h	2011-06-11 05:46:16 +0000
@@ -338,7 +338,7 @@
 
 #define PTR_BYTE_POS(ptr) \
 ((ptr) - (current_buffer)->text->beg					    \
- - (ptr - (current_buffer)->text->beg <= (unsigned) (GPT_BYTE - BEG_BYTE) ? 0 : GAP_SIZE) \
+ - (ptr - (current_buffer)->text->beg <= GPT_BYTE - BEG_BYTE ? 0 : GAP_SIZE) \
  + BEG_BYTE)
 
 /* Return character at byte position POS.  */
@@ -397,7 +397,7 @@
 
 #define BUF_PTR_BYTE_POS(buf, ptr)				\
 ((ptr) - (buf)->text->beg					\
- - (ptr - (buf)->text->beg <= (unsigned) (BUF_GPT_BYTE ((buf)) - BEG_BYTE)\
+ - (ptr - (buf)->text->beg <= BUF_GPT_BYTE (buf) - BEG_BYTE	\
     ? 0 : BUF_GAP_SIZE ((buf)))					\
  + BEG_BYTE)
 

=== modified file 'src/bytecode.c'
--- src/bytecode.c	2011-06-01 14:19:45 +0000
+++ src/bytecode.c	2011-06-14 20:12:13 +0000
@@ -433,7 +433,7 @@
 
 Lisp_Object
 exec_byte_code (Lisp_Object bytestr, Lisp_Object vector, Lisp_Object maxdepth,
-		Lisp_Object args_template, int nargs, Lisp_Object *args)
+		Lisp_Object args_template, ptrdiff_t nargs, Lisp_Object *args)
 {
   int count = SPECPDL_INDEX ();
 #ifdef BYTE_CODE_METER
@@ -444,7 +444,7 @@
   /* Lisp_Object v1, v2; */
   Lisp_Object *vectorp;
 #ifdef BYTE_CODE_SAFE
-  int const_length;
+  ptrdiff_t const_length;
   Lisp_Object *stacke;
   int bytestr_length;
 #endif
@@ -464,7 +464,7 @@
 
   CHECK_STRING (bytestr);
   CHECK_VECTOR (vector);
-  CHECK_NUMBER (maxdepth);
+  CHECK_NATNUM (maxdepth);
 
 #ifdef BYTE_CODE_SAFE
   const_length = ASIZE (vector);
@@ -486,6 +486,8 @@
   stack.byte_string = bytestr;
   stack.pc = stack.byte_string_start = SDATA (bytestr);
   stack.constants = vector;
+  if (min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object) < XFASTINT (maxdepth))
+    memory_full (SIZE_MAX);
   top = (Lisp_Object *) alloca (XFASTINT (maxdepth)
                                          * sizeof (Lisp_Object));
 #if BYTE_MAINTAIN_TOP
@@ -502,14 +504,14 @@
 
   if (INTEGERP (args_template))
     {
-      int at = XINT (args_template);
+      ptrdiff_t at = XINT (args_template);
       int rest = at & 128;
       int mandatory = at & 127;
-      int nonrest = at >> 8;
+      ptrdiff_t nonrest = at >> 8;
       eassert (mandatory <= nonrest);
       if (nargs <= nonrest)
 	{
-	  int i;
+	  ptrdiff_t i;
 	  for (i = 0 ; i < nargs; i++, args++)
 	    PUSH (*args);
 	  if (nargs < mandatory)
@@ -528,7 +530,7 @@
 	}
       else if (rest)
 	{
-	  int i;
+	  ptrdiff_t i;
 	  for (i = 0 ; i < nonrest; i++, args++)
 	    PUSH (*args);
 	  PUSH (Flist (nargs - nonrest, args));

=== modified file 'src/callint.c'
--- src/callint.c	2011-05-12 07:07:06 +0000
+++ src/callint.c	2011-06-14 18:57:19 +0000
@@ -269,10 +269,9 @@
   /* If varies[i] > 0, the i'th argument shouldn't just have its value
      in this call quoted in the command history.  It should be
      recorded as a call to the function named callint_argfuns[varies[i]].  */
-  int *varies;
+  signed char *varies;
 
-  register size_t i;
-  size_t nargs;
+  ptrdiff_t i, nargs;
   int foo;
   char prompt1[100];
   char *tem1;
@@ -339,7 +338,7 @@
     {
       Lisp_Object input;
       Lisp_Object funval = Findirect_function (function, Qt);
-      i = num_input_events;
+      size_t events = num_input_events;
       input = specs;
       /* Compute the arg values using the user's expression.  */
       GCPRO2 (input, filter_specs);
@@ -347,7 +346,7 @@
 		     CONSP (funval) && EQ (Qclosure, XCAR (funval))
 		     ? Qt : Qnil);
       UNGCPRO;
-      if (i != num_input_events || !NILP (record_flag))
+      if (events != num_input_events || !NILP (record_flag))
 	{
 	  /* We should record this command on the command history.  */
 	  Lisp_Object values;
@@ -465,9 +464,14 @@
 	break;
     }
 
+  if (min (MOST_POSITIVE_FIXNUM,
+	   min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object))
+      < nargs)
+    memory_full (SIZE_MAX);
+
   args = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object));
   visargs = (Lisp_Object *) alloca (nargs * sizeof (Lisp_Object));
-  varies = (int *) alloca (nargs * sizeof (int));
+  varies = (signed char *) alloca (nargs);
 
   for (i = 0; i < nargs; i++)
     {

=== modified file 'src/callproc.c'
--- src/callproc.c	2011-05-31 05:12:19 +0000
+++ src/callproc.c	2011-06-14 18:57:19 +0000
@@ -184,7 +184,7 @@
 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
 
 usage: (call-process PROGRAM &optional INFILE BUFFER DISPLAY &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object infile, buffer, current_dir, path;
   volatile int display_p_volatile;
@@ -231,7 +231,7 @@
   /* Decide the coding-system for giving arguments.  */
   {
     Lisp_Object val, *args2;
-    size_t i;
+    ptrdiff_t i;
 
     /* If arguments are supplied, we may have to encode them.  */
     if (nargs >= 5)
@@ -422,7 +422,7 @@
 	       (nargs > 4 ? nargs - 2 : 2) * sizeof *new_argv);
   if (nargs > 4)
     {
-      register size_t i;
+      ptrdiff_t i;
       struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
 
       GCPRO5 (infile, buffer, current_dir, path, error_file);
@@ -716,7 +716,7 @@
 	{
 	  if (EQ (coding_systems, Qt))
 	    {
-	      size_t i;
+	      ptrdiff_t i;
 
 	      SAFE_ALLOCA (args2, Lisp_Object *, (nargs + 1) * sizeof *args2);
 	      args2[0] = Qcall_process;
@@ -944,7 +944,7 @@
 If you quit, the process is killed with SIGINT, or SIGKILL if you quit again.
 
 usage: (call-process-region START END PROGRAM &optional DELETE BUFFER DISPLAY &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   struct gcpro gcpro1;
   Lisp_Object filename_string;
@@ -953,7 +953,7 @@
   /* Qt denotes we have not yet called Ffind_operation_coding_system.  */
   Lisp_Object coding_systems;
   Lisp_Object val, *args2;
-  size_t i;
+  ptrdiff_t i;
   char *tempfile;
   Lisp_Object tmpdir, pattern;
 

=== modified file 'src/casefiddle.c'
--- src/casefiddle.c	2011-04-14 05:04:02 +0000
+++ src/casefiddle.c	2011-06-12 23:25:12 +0000
@@ -52,7 +52,7 @@
       /* If the character has higher bits set
 	 above the flags, return it unchanged.
 	 It is not a real character.  */
-      if ((unsigned) XFASTINT (obj) > (unsigned) flagbits)
+      if (UNSIGNED_CMP (XFASTINT (obj), >, flagbits))
 	return obj;
 
       c1 = XFASTINT (obj) & ~flagbits;

=== modified file 'src/ccl.c'
--- src/ccl.c	2011-05-31 06:05:00 +0000
+++ src/ccl.c	2011-06-15 19:40:52 +0000
@@ -745,11 +745,15 @@
 
 #endif
 
+/* Use "&" rather than "&&" to suppress a bogus GCC warning; see
+   <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43772>.  */
+#define ASCENDING_ORDER(lo, med, hi) (((lo) <= (med)) & ((med) <= (hi)))
+
 #define GET_CCL_RANGE(var, ccl_prog, ic, lo, hi)		\
   do								\
     {								\
       EMACS_INT prog_word = XINT ((ccl_prog)[ic]);		\
-      if (! ((lo) <= prog_word && prog_word <= (hi)))		\
+      if (! ASCENDING_ORDER (lo, prog_word, hi))		\
 	CCL_INVALID_CMD;					\
       (var) = prog_word;					\
     }								\
@@ -761,7 +765,7 @@
 #define GET_CCL_INT(var, ccl_prog, ic)				\
   GET_CCL_RANGE (var, ccl_prog, ic, INT_MIN, INT_MAX)
 
-#define IN_INT_RANGE(val) (INT_MIN <= (val) && (val) <= INT_MAX)
+#define IN_INT_RANGE(val) ASCENDING_ORDER (INT_MIN, val, INT_MAX)
 
 /* Encode one character CH to multibyte form and write to the current
    output buffer.  If CH is less than 256, CH is written as is.  */

=== modified file 'src/character.c'
--- src/character.c	2011-06-06 19:43:39 +0000
+++ src/character.c	2011-06-14 18:57:19 +0000
@@ -123,7 +123,7 @@
 
   if (c & CHAR_MODIFIER_MASK)
     {
-      c = (unsigned) char_resolve_modifier_mask ((int) c);
+      c = char_resolve_modifier_mask (c);
       /* If C still has any modifier bits, just ignore it.  */
       c &= ~CHAR_MODIFIER_MASK;
     }
@@ -838,7 +838,7 @@
   if (multibyte)
     {
       if ((MOST_POSITIVE_FIXNUM - nchars) / 3 < byte8_count
-	  || (STRING_BYTES_MAX - nbytes) / 2 < byte8_count)
+	  || (STRING_BYTES_BOUND - nbytes) / 2 < byte8_count)
 	string_overflow ();
 
       /* Convert 2-byte sequence of byte8 chars to 4-byte octal.  */
@@ -847,7 +847,7 @@
     }
   else
     {
-      if ((STRING_BYTES_MAX - nchars) / 3 < byte8_count)
+      if ((STRING_BYTES_BOUND - nbytes) / 3 < byte8_count)
 	string_overflow ();
 
       /* Convert 1-byte sequence of byte8 chars to 4-byte octal.  */
@@ -893,9 +893,9 @@
        doc: /*
 Concatenate all the argument characters and make the result a string.
 usage: (string &rest CHARACTERS)  */)
-  (size_t n, Lisp_Object *args)
+  (ptrdiff_t n, Lisp_Object *args)
 {
-  size_t i;
+  ptrdiff_t i;
   int c;
   unsigned char *buf, *p;
   Lisp_Object str;
@@ -919,9 +919,9 @@
 DEFUN ("unibyte-string", Funibyte_string, Sunibyte_string, 0, MANY, 0,
        doc: /* Concatenate all the argument bytes and make the result a unibyte string.
 usage: (unibyte-string &rest BYTES)  */)
-  (size_t n, Lisp_Object *args)
+  (ptrdiff_t n, Lisp_Object *args)
 {
-  size_t i;
+  ptrdiff_t i;
   int c;
   unsigned char *buf, *p;
   Lisp_Object str;

=== modified file 'src/character.h'
--- src/character.h	2011-06-01 02:49:12 +0000
+++ src/character.h	2011-06-15 18:57:45 +0000
@@ -23,6 +23,8 @@
 #ifndef EMACS_CHARACTER_H
 #define EMACS_CHARACTER_H
 
+#include <verify.h>
+
 /* character code	1st byte   byte sequence
    --------------	--------   -------------
         0-7F		00..7F	   0xxxxxxx
@@ -102,13 +104,13 @@
 #define make_char(c) make_number (c)
 
 /* Nonzero iff C is an ASCII byte.  */
-#define ASCII_BYTE_P(c) ((unsigned) (c) < 0x80)
+#define ASCII_BYTE_P(c) UNSIGNED_CMP (c, <, 0x80)
 
 /* Nonzero iff X is a character.  */
 #define CHARACTERP(x) (NATNUMP (x) && XFASTINT (x) <= MAX_CHAR)
 
-/* Nonzero iff C is valid as a character code.  GENERICP is not used.  */
-#define CHAR_VALID_P(c, genericp) ((unsigned) (c) <= MAX_CHAR)
+/* Nonzero iff C is valid as a character code.  */
+#define CHAR_VALID_P(c) UNSIGNED_CMP (c, <=, MAX_CHAR)
 
 /* Check if Lisp object X is a character or not.  */
 #define CHECK_CHARACTER(x) \
@@ -129,7 +131,7 @@
   } while (0)
 
 /* Nonzero iff C is a character of code less than 0x100.  */
-#define SINGLE_BYTE_CHAR_P(c) ((unsigned) (c) < 0x100)
+#define SINGLE_BYTE_CHAR_P(c) UNSIGNED_CMP (c, <, 0x100)
 
 /* Nonzero if character C has a printable glyph.  */
 #define CHAR_PRINTABLE_P(c)	\
@@ -161,19 +163,19 @@
    Returns the length of the multibyte form.  */
 
 #define CHAR_STRING(c, p)			\
-  ((unsigned) (c) <= MAX_1_BYTE_CHAR		\
+  (UNSIGNED_CMP (c, <=, MAX_1_BYTE_CHAR)	\
    ? ((p)[0] = (c),				\
       1)					\
-   : (unsigned) (c) <= MAX_2_BYTE_CHAR		\
+   : UNSIGNED_CMP (c, <=, MAX_2_BYTE_CHAR)	\
    ? ((p)[0] = (0xC0 | ((c) >> 6)),		\
       (p)[1] = (0x80 | ((c) & 0x3F)),		\
       2)					\
-   : (unsigned) (c) <= MAX_3_BYTE_CHAR		\
+   : UNSIGNED_CMP (c, <=, MAX_3_BYTE_CHAR)	\
    ? ((p)[0] = (0xE0 | ((c) >> 12)),		\
       (p)[1] = (0x80 | (((c) >> 6) & 0x3F)),	\
       (p)[2] = (0x80 | ((c) & 0x3F)),		\
       3)					\
-   : char_string ((unsigned) c, p))
+   : verify_expr (sizeof (c) <= sizeof (unsigned), char_string (c, p)))
 
 /* Store multibyte form of byte B in P.  The caller should allocate at
    least MAX_MULTIBYTE_LENGTH bytes area at P in advance.  Returns the
@@ -201,7 +203,10 @@
 	*(p)++ = (0x80 | (((c) >> 6) & 0x3F)),	\
 	*(p)++ = (0x80 | ((c) & 0x3F));		\
     else					\
-      (p) += char_string ((c), (p));		\
+      {						\
+	verify (sizeof (c) <= sizeof (unsigned));	\
+	(p) += char_string (c, p);		\
+      }						\
   } while (0)
 
 

=== modified file 'src/charset.c'
--- src/charset.c	2011-06-06 19:43:39 +0000
+++ src/charset.c	2011-06-14 18:57:19 +0000
@@ -844,7 +844,7 @@
        Sdefine_charset_internal, charset_arg_max, MANY, 0,
        doc: /* For internal use only.
 usage: (define-charset-internal ...)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   /* Charset attr vector.  */
   Lisp_Object attrs;
@@ -1862,14 +1862,15 @@
 code-point in CCS.  Currently not supported and just ignored.  */)
   (Lisp_Object ch, Lisp_Object charset, Lisp_Object restriction)
 {
-  int id;
+  int c, id;
   unsigned code;
   struct charset *charsetp;
 
   CHECK_CHARSET_GET_ID (charset, id);
-  CHECK_NATNUM (ch);
+  CHECK_CHARACTER (ch);
+  c = XFASTINT (ch);
   charsetp = CHARSET_FROM_ID (id);
-  code = ENCODE_CHAR (charsetp, XINT (ch));
+  code = ENCODE_CHAR (charsetp, c);
   if (code == CHARSET_INVALID_CODE (charsetp))
     return Qnil;
   return INTEGER_TO_CONS (code);
@@ -2144,11 +2145,11 @@
        1, MANY, 0,
        doc: /* Assign higher priority to the charsets given as arguments.
 usage: (set-charset-priority &rest charsets)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object new_head, old_list, arglist[2];
   Lisp_Object list_2022, list_emacs_mule;
-  size_t i;
+  ptrdiff_t i;
   int id;
 
   old_list = Fcopy_sequence (Vcharset_ordered_list);

=== modified file 'src/charset.h'
--- src/charset.h	2011-05-31 06:05:00 +0000
+++ src/charset.h	2011-06-15 18:57:45 +0000
@@ -27,6 +27,8 @@
 #ifndef EMACS_CHARSET_H
 #define EMACS_CHARSET_H
 
+#include <verify.h>
+
 /* Index to arguments of Fdefine_charset_internal.  */
 
 enum define_charset_arg_index
@@ -424,28 +426,30 @@
 /* Return a code point of CHAR in CHARSET.
    Try some optimization before calling encode_char.  */
 
-#define ENCODE_CHAR(charset, c)						 \
-  ((ASCII_CHAR_P (c) && (charset)->ascii_compatible_p)			 \
-   ? (c)								 \
-   : ((charset)->unified_p						 \
-      || (charset)->method == CHARSET_METHOD_SUBSET			 \
-      || (charset)->method == CHARSET_METHOD_SUPERSET)			 \
-   ? encode_char ((charset), (c))					 \
-   : ((c) < (charset)->min_char || (c) > (charset)->max_char)		 \
-   ? (charset)->invalid_code						 \
-   : (charset)->method == CHARSET_METHOD_OFFSET				 \
-   ? ((charset)->code_linear_p						 \
-      ? (c) - (charset)->code_offset + (charset)->min_code		 \
-      : encode_char ((charset), (c)))					 \
-   : (charset)->method == CHARSET_METHOD_MAP				 \
-   ? (((charset)->compact_codes_p					 \
-       && CHAR_TABLE_P (CHARSET_ENCODER (charset)))			 \
-      ? (charset_work = CHAR_TABLE_REF (CHARSET_ENCODER (charset), (c)), \
-	 (NILP (charset_work)						 \
-	  ? (charset)->invalid_code					 \
-	  : XFASTINT (charset_work)))					 \
-      : encode_char ((charset), (c)))					 \
-   : encode_char ((charset), (c)))
+#define ENCODE_CHAR(charset, c)						\
+  (verify_expr								\
+   (sizeof (c) <= sizeof (int),						\
+    (ASCII_CHAR_P (c) && (charset)->ascii_compatible_p			\
+     ? (c)								\
+     : ((charset)->unified_p						\
+	|| (charset)->method == CHARSET_METHOD_SUBSET			\
+	|| (charset)->method == CHARSET_METHOD_SUPERSET)		\
+     ? encode_char (charset, c)						\
+     : (c) < (charset)->min_char || (c) > (charset)->max_char		\
+     ? (charset)->invalid_code						\
+     : (charset)->method == CHARSET_METHOD_OFFSET			\
+     ? ((charset)->code_linear_p					\
+	? (c) - (charset)->code_offset + (charset)->min_code		\
+	: encode_char (charset, c))					\
+     : (charset)->method == CHARSET_METHOD_MAP				\
+     ? (((charset)->compact_codes_p					\
+	 && CHAR_TABLE_P (CHARSET_ENCODER (charset)))			\
+	? (charset_work = CHAR_TABLE_REF (CHARSET_ENCODER (charset), c), \
+	   (NILP (charset_work)						\
+	    ? (charset)->invalid_code					\
+	    : XFASTINT (charset_work)))					\
+	: encode_char (charset, c))					\
+     : encode_char (charset, c))))
 
 
 /* Set to 1 when a charset map is loaded to warn that a buffer text

=== modified file 'src/chartab.c'
--- src/chartab.c	2011-05-12 07:07:06 +0000
+++ src/chartab.c	2011-06-13 01:38:25 +0000
@@ -524,15 +524,15 @@
 
   if (EQ (range, Qnil))
     val = XCHAR_TABLE (char_table)->defalt;
-  else if (INTEGERP (range))
-    val = CHAR_TABLE_REF (char_table, XINT (range));
+  else if (CHARACTERP (range))
+    val = CHAR_TABLE_REF (char_table, XFASTINT (range));
   else if (CONSP (range))
     {
       int from, to;
 
       CHECK_CHARACTER_CAR (range);
       CHECK_CHARACTER_CDR (range);
-      val = char_table_ref_and_range (char_table, XINT (XCAR (range)),
+      val = char_table_ref_and_range (char_table, XFASTINT (XCAR (range)),
 				      &from, &to);
       /* Not yet implemented. */
     }

=== modified file 'src/coding.c'
--- src/coding.c	2011-06-06 19:43:39 +0000
+++ src/coding.c	2011-06-14 18:57:19 +0000
@@ -1071,7 +1071,7 @@
 static void
 coding_alloc_by_realloc (struct coding_system *coding, EMACS_INT bytes)
 {
-  if (STRING_BYTES_MAX - coding->dst_bytes < bytes)
+  if (STRING_BYTES_BOUND - coding->dst_bytes < bytes)
     string_overflow ();
   coding->destination = (unsigned char *) xrealloc (coding->destination,
 						    coding->dst_bytes + bytes);
@@ -9278,7 +9278,7 @@
 contents of BUFFER instead of reading the file.
 
 usage: (find-operation-coding-system OPERATION ARGUMENTS...)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object operation, target_idx, target, val;
   register Lisp_Object chain;
@@ -9355,9 +9355,9 @@
 all but the first one are ignored.
 
 usage: (set-coding-system-priority &rest coding-systems)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
-  size_t i, j;
+  ptrdiff_t i, j;
   int changed[coding_category_max];
   enum coding_category priorities[coding_category_max];
 
@@ -9461,7 +9461,7 @@
        Sdefine_coding_system_internal, coding_arg_max, MANY, 0,
        doc: /* For internal use only.
 usage: (define-coding-system-internal ...)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object name;
   Lisp_Object spec_vec;		/* [ ATTRS ALIASE EOL_TYPE ] */

=== modified file 'src/composite.c'
--- src/composite.c	2011-05-31 06:05:00 +0000
+++ src/composite.c	2011-06-13 01:35:47 +0000
@@ -858,7 +858,7 @@
   for (i = 0; i < len; i++)
     {
       Lisp_Object g = LGSTRING_GLYPH (gstring, i);
-      EMACS_INT c = XINT (AREF (header, i + 1));
+      int c = XFASTINT (AREF (header, i + 1));
 
       if (NILP (g))
 	{
@@ -995,7 +995,8 @@
 void
 composition_compute_stop_pos (struct composition_it *cmp_it, EMACS_INT charpos, EMACS_INT bytepos, EMACS_INT endpos, Lisp_Object string)
 {
-  EMACS_INT start, end, c;
+  EMACS_INT start, end;
+  int c;
   Lisp_Object prop, val;
   /* This is from forward_to_next_line_start in xdisp.c.  */
   const int MAX_NEWLINE_DISTANCE = 500;

=== modified file 'src/composite.h'
--- src/composite.h	2011-06-06 19:43:39 +0000
+++ src/composite.h	2011-06-12 23:25:12 +0000
@@ -151,7 +151,7 @@
 /* Nonzero if the global reference point GREF and new reference point NREF are
    valid.  */
 #define COMPOSITION_ENCODE_RULE_VALID(gref, nref)	\
-  ((unsigned) (gref) < 12 && (unsigned) (nref) < 12)
+  (UNSIGNED_CMP (gref, <, 12) && UNSIGNED_CMP (nref, <, 12))
 
 /* Return encoded composition rule for the pair of global reference
    point GREF and new reference point NREF.  Arguments must be valid.  */

=== modified file 'src/data.c'
--- src/data.c	2011-06-10 20:05:21 +0000
+++ src/data.c	2011-06-14 18:57:19 +0000
@@ -2148,61 +2148,62 @@
       CHECK_CHARACTER (idx);
       CHAR_TABLE_SET (array, idxval, newelt);
     }
-  else if (STRING_MULTIBYTE (array))
+  else
     {
-      EMACS_INT idxval_byte, prev_bytes, new_bytes, nbytes;
-      unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1;
+      int c;
 
       if (idxval < 0 || idxval >= SCHARS (array))
 	args_out_of_range (array, idx);
       CHECK_CHARACTER (newelt);
-
-      nbytes = SBYTES (array);
-
-      idxval_byte = string_char_to_byte (array, idxval);
-      p1 = SDATA (array) + idxval_byte;
-      prev_bytes = BYTES_BY_CHAR_HEAD (*p1);
-      new_bytes = CHAR_STRING (XINT (newelt), p0);
-      if (prev_bytes != new_bytes)
+      c = XFASTINT (newelt);
+
+      if (STRING_MULTIBYTE (array))
 	{
-	  /* We must relocate the string data.  */
-	  EMACS_INT nchars = SCHARS (array);
-	  unsigned char *str;
-	  USE_SAFE_ALLOCA;
+	  EMACS_INT idxval_byte, prev_bytes, new_bytes, nbytes;
+	  unsigned char workbuf[MAX_MULTIBYTE_LENGTH], *p0 = workbuf, *p1;
 
-	  SAFE_ALLOCA (str, unsigned char *, nbytes);
-	  memcpy (str, SDATA (array), nbytes);
-	  allocate_string_data (XSTRING (array), nchars,
-				nbytes + new_bytes - prev_bytes);
-	  memcpy (SDATA (array), str, idxval_byte);
+	  nbytes = SBYTES (array);
+	  idxval_byte = string_char_to_byte (array, idxval);
 	  p1 = SDATA (array) + idxval_byte;
-	  memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes,
-		  nbytes - (idxval_byte + prev_bytes));
-	  SAFE_FREE ();
-	  clear_string_char_byte_cache ();
+	  prev_bytes = BYTES_BY_CHAR_HEAD (*p1);
+	  new_bytes = CHAR_STRING (c, p0);
+	  if (prev_bytes != new_bytes)
+	    {
+	      /* We must relocate the string data.  */
+	      EMACS_INT nchars = SCHARS (array);
+	      unsigned char *str;
+	      USE_SAFE_ALLOCA;
+
+	      SAFE_ALLOCA (str, unsigned char *, nbytes);
+	      memcpy (str, SDATA (array), nbytes);
+	      allocate_string_data (XSTRING (array), nchars,
+				    nbytes + new_bytes - prev_bytes);
+	      memcpy (SDATA (array), str, idxval_byte);
+	      p1 = SDATA (array) + idxval_byte;
+	      memcpy (p1 + new_bytes, str + idxval_byte + prev_bytes,
+		      nbytes - (idxval_byte + prev_bytes));
+	      SAFE_FREE ();
+	      clear_string_char_byte_cache ();
+	    }
+	  while (new_bytes--)
+	    *p1++ = *p0++;
 	}
-      while (new_bytes--)
-	*p1++ = *p0++;
-    }
-  else
-    {
-      if (idxval < 0 || idxval >= SCHARS (array))
-	args_out_of_range (array, idx);
-      CHECK_NUMBER (newelt);
-
-      if (XINT (newelt) >= 0 && ! SINGLE_BYTE_CHAR_P (XINT (newelt)))
+      else
 	{
-	  int i;
+	  if (! SINGLE_BYTE_CHAR_P (c))
+	    {
+	      int i;
 
-	  for (i = SBYTES (array) - 1; i >= 0; i--)
-	    if (SREF (array, i) >= 0x80)
-	      args_out_of_range (array, newelt);
-	  /* ARRAY is an ASCII string.  Convert it to a multibyte
-	     string, and try `aset' again.  */
-	  STRING_SET_MULTIBYTE (array);
-	  return Faset (array, idx, newelt);
+	      for (i = SBYTES (array) - 1; i >= 0; i--)
+		if (SREF (array, i) >= 0x80)
+		  args_out_of_range (array, newelt);
+	      /* ARRAY is an ASCII string.  Convert it to a multibyte
+		 string, and try `aset' again.  */
+	      STRING_SET_MULTIBYTE (array);
+	      return Faset (array, idx, newelt);
+	    }
+	  SSET (array, idxval, c);
 	}
-      SSET (array, idxval, XINT (newelt));
     }
 
   return newelt;
@@ -2502,18 +2503,18 @@
     Amin
   };
 
-static Lisp_Object float_arith_driver (double, size_t, enum arithop,
-                                       size_t, Lisp_Object *);
+static Lisp_Object float_arith_driver (double, ptrdiff_t, enum arithop,
+                                       ptrdiff_t, Lisp_Object *);
 static Lisp_Object
-arith_driver (enum arithop code, size_t nargs, register Lisp_Object *args)
+arith_driver (enum arithop code, ptrdiff_t nargs, Lisp_Object *args)
 {
   register Lisp_Object val;
-  register size_t argnum;
+  ptrdiff_t argnum;
   register EMACS_INT accum = 0;
   register EMACS_INT next;
 
   int overflow = 0;
-  size_t ok_args;
+  ptrdiff_t ok_args;
   EMACS_INT ok_accum;
 
   switch (SWITCH_ENUM_CAST (code))
@@ -2617,8 +2618,8 @@
 #define isnan(x) ((x) != (x))
 
 static Lisp_Object
-float_arith_driver (double accum, register size_t argnum, enum arithop code,
-		    size_t nargs, register Lisp_Object *args)
+float_arith_driver (double accum, ptrdiff_t argnum, enum arithop code,
+		    ptrdiff_t nargs, Lisp_Object *args)
 {
   register Lisp_Object val;
   double next;
@@ -2680,7 +2681,7 @@
 DEFUN ("+", Fplus, Splus, 0, MANY, 0,
        doc: /* Return sum of any number of arguments, which are numbers or markers.
 usage: (+ &rest NUMBERS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Aadd, nargs, args);
 }
@@ -2690,7 +2691,7 @@
 With one arg, negates it.  With more than one arg,
 subtracts all but the first from the first.
 usage: (- &optional NUMBER-OR-MARKER &rest MORE-NUMBERS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Asub, nargs, args);
 }
@@ -2698,7 +2699,7 @@
 DEFUN ("*", Ftimes, Stimes, 0, MANY, 0,
        doc: /* Return product of any number of arguments, which are numbers or markers.
 usage: (* &rest NUMBERS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Amult, nargs, args);
 }
@@ -2707,9 +2708,9 @@
        doc: /* Return first argument divided by all the remaining arguments.
 The arguments must be numbers or markers.
 usage: (/ DIVIDEND DIVISOR &rest DIVISORS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
-  size_t argnum;
+  ptrdiff_t argnum;
   for (argnum = 2; argnum < nargs; argnum++)
     if (FLOATP (args[argnum]))
       return float_arith_driver (0, 0, Adiv, nargs, args);
@@ -2791,7 +2792,7 @@
        doc: /* Return largest of all the arguments (which must be numbers or markers).
 The value is always a number; markers are converted to numbers.
 usage: (max NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Amax, nargs, args);
 }
@@ -2800,7 +2801,7 @@
        doc: /* Return smallest of all the arguments (which must be numbers or markers).
 The value is always a number; markers are converted to numbers.
 usage: (min NUMBER-OR-MARKER &rest NUMBERS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Amin, nargs, args);
 }
@@ -2809,7 +2810,7 @@
        doc: /* Return bitwise-and of all the arguments.
 Arguments may be integers, or markers converted to integers.
 usage: (logand &rest INTS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Alogand, nargs, args);
 }
@@ -2818,7 +2819,7 @@
        doc: /* Return bitwise-or of all the arguments.
 Arguments may be integers, or markers converted to integers.
 usage: (logior &rest INTS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Alogior, nargs, args);
 }
@@ -2827,7 +2828,7 @@
        doc: /* Return bitwise-exclusive-or of all the arguments.
 Arguments may be integers, or markers converted to integers.
 usage: (logxor &rest INTS-OR-MARKERS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return arith_driver (Alogxor, nargs, args);
 }

=== modified file 'src/dbusbind.c'
--- src/dbusbind.c	2011-05-24 07:41:16 +0000
+++ src/dbusbind.c	2011-06-14 18:57:19 +0000
@@ -1078,7 +1078,7 @@
   => "i686"
 
 usage: (dbus-call-method BUS SERVICE PATH INTERFACE METHOD &optional :timeout TIMEOUT &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service, path, interface, method;
   Lisp_Object result;
@@ -1090,7 +1090,7 @@
   DBusError derror;
   unsigned int dtype;
   int timeout = -1;
-  size_t i = 5;
+  ptrdiff_t i = 5;
   char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
 
   /* Check parameters.  */
@@ -1143,7 +1143,7 @@
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s %s", (unsigned long) (i-4),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s %s", i - 4,
 			    SDATA (format2 ("%s", args[i], Qnil)),
 			    SDATA (format2 ("%s", args[i+1], Qnil)));
 	  ++i;
@@ -1151,7 +1151,7 @@
       else
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s", (unsigned long) (i-4),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s", i - 4,
 			    SDATA (format2 ("%s", args[i], Qnil)));
 	}
 
@@ -1260,7 +1260,7 @@
   -| i686
 
 usage: (dbus-call-method-asynchronously BUS SERVICE PATH INTERFACE METHOD HANDLER &optional :timeout TIMEOUT &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service, path, interface, method, handler;
   Lisp_Object result;
@@ -1271,7 +1271,7 @@
   unsigned int dtype;
   dbus_uint32_t serial;
   int timeout = -1;
-  size_t i = 6;
+  ptrdiff_t i = 6;
   char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
 
   /* Check parameters.  */
@@ -1326,7 +1326,7 @@
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s %s", (unsigned long) (i-4),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s %s", i - 4,
 			    SDATA (format2 ("%s", args[i], Qnil)),
 			    SDATA (format2 ("%s", args[i+1], Qnil)));
 	  ++i;
@@ -1334,7 +1334,7 @@
       else
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s", (unsigned long) (i - 4),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s", i - 4,
 			    SDATA (format2 ("%s", args[i], Qnil)));
 	}
 
@@ -1386,7 +1386,7 @@
 This is an internal function, it shall not be used outside dbus.el.
 
 usage: (dbus-method-return-internal BUS SERIAL SERVICE &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service;
   struct gcpro gcpro1, gcpro2;
@@ -1395,7 +1395,7 @@
   DBusMessageIter iter;
   dbus_uint32_t serial;
   unsigned int ui_serial, dtype;
-  size_t i;
+  ptrdiff_t i;
   char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
 
   /* Check parameters.  */
@@ -1435,7 +1435,7 @@
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s %s", (unsigned long) (i-2),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s %s", i - 2,
 			    SDATA (format2 ("%s", args[i], Qnil)),
 			    SDATA (format2 ("%s", args[i+1], Qnil)));
 	  ++i;
@@ -1443,7 +1443,7 @@
       else
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s", (unsigned long) (i-2),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s", i - 2,
 			    SDATA (format2 ("%s", args[i], Qnil)));
 	}
 
@@ -1475,7 +1475,7 @@
 This is an internal function, it shall not be used outside dbus.el.
 
 usage: (dbus-method-error-internal BUS SERIAL SERVICE &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service;
   struct gcpro gcpro1, gcpro2;
@@ -1484,7 +1484,7 @@
   DBusMessageIter iter;
   dbus_uint32_t serial;
   unsigned int ui_serial, dtype;
-  size_t i;
+  ptrdiff_t i;
   char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
 
   /* Check parameters.  */
@@ -1525,7 +1525,7 @@
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s %s", (unsigned long) (i-2),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s %s", i - 2,
 			    SDATA (format2 ("%s", args[i], Qnil)),
 			    SDATA (format2 ("%s", args[i+1], Qnil)));
 	  ++i;
@@ -1533,7 +1533,7 @@
       else
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s", (unsigned long) (i-2),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s", i - 2,
 			    SDATA (format2 ("%s", args[i], Qnil)));
 	}
 
@@ -1588,7 +1588,7 @@
   "org.gnu.Emacs.FileManager" "FileModified" "/home/albinus/.emacs")
 
 usage: (dbus-send-signal BUS SERVICE PATH INTERFACE SIGNAL &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service, path, interface, signal;
   struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5;
@@ -1596,7 +1596,7 @@
   DBusMessage *dmessage;
   DBusMessageIter iter;
   unsigned int dtype;
-  size_t i;
+  ptrdiff_t i;
   char signature[DBUS_MAXIMUM_SIGNATURE_LENGTH];
 
   /* Check parameters.  */
@@ -1640,7 +1640,7 @@
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i+1]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s %s", (unsigned long) (i-4),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s %s", i - 4,
 			    SDATA (format2 ("%s", args[i], Qnil)),
 			    SDATA (format2 ("%s", args[i+1], Qnil)));
 	  ++i;
@@ -1648,7 +1648,7 @@
       else
 	{
 	  XD_DEBUG_VALID_LISP_OBJECT_P (args[i]);
-	  XD_DEBUG_MESSAGE ("Parameter%lu %s", (unsigned long) (i-4),
+	  XD_DEBUG_MESSAGE ("Parameter%"pD"d %s", i - 4,
 			    SDATA (format2 ("%s", args[i], Qnil)));
 	}
 
@@ -1919,11 +1919,11 @@
   => :already-owner.
 
 usage: (dbus-register-service BUS SERVICE &rest FLAGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service;
   DBusConnection *connection;
-  size_t i;
+  ptrdiff_t i;
   unsigned int value;
   unsigned int flags = 0;
   int result;
@@ -2019,13 +2019,13 @@
 `dbus-unregister-object' for removing the registration.
 
 usage: (dbus-register-signal BUS SERVICE PATH INTERFACE SIGNAL HANDLER &rest ARGS) */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object bus, service, path, interface, signal, handler;
   struct gcpro gcpro1, gcpro2, gcpro3, gcpro4, gcpro5, gcpro6;
   Lisp_Object uname, key, key1, value;
   DBusConnection *connection;
-  size_t i;
+  ptrdiff_t i;
   char rule[DBUS_MAXIMUM_MATCH_RULE_LENGTH];
   char x[DBUS_MAXIMUM_MATCH_RULE_LENGTH];
   DBusError derror;
@@ -2095,7 +2095,7 @@
 	if (!NILP (args[i]))
 	  {
 	    CHECK_STRING (args[i]);
-	    sprintf (x, ",arg%lu='%s'", (unsigned long) (i-6),
+	    sprintf (x, ",arg%"pD"d='%s'", i - 6,
 		     SDATA (args[i]));
 	    strcat (rule, x);
 	  }

=== modified file 'src/dired.c'
--- src/dired.c	2011-06-06 19:43:39 +0000
+++ src/dired.c	2011-06-13 06:34:04 +0000
@@ -978,11 +978,14 @@
   values[4] = make_time (s.st_atime);
   values[5] = make_time (s.st_mtime);
   values[6] = make_time (s.st_ctime);
-  values[7] = make_fixnum_or_float (s.st_size);
-  /* If the size is negative, and its type is long, convert it back to
-     positive.  */
-  if (s.st_size < 0 && sizeof (s.st_size) == sizeof (long))
-    values[7] = make_float ((double) ((unsigned long) s.st_size));
+
+  /* If the file size is a 4-byte type, assume that files of sizes in
+     the 2-4 GiB range wrap around to negative values, as this is a
+     common bug on older 32-bit platforms.  */
+  if (sizeof (s.st_size) == 4)
+    values[7] = make_fixnum_or_float (s.st_size & 0xffffffffu);
+  else
+    values[7] = make_fixnum_or_float (s.st_size);
 
   filemodestring (&s, modes);
   values[8] = make_string (modes, 10);

=== modified file 'src/dispextern.h'
--- src/dispextern.h	2011-06-11 01:48:59 +0000
+++ src/dispextern.h	2011-06-13 05:15:27 +0000
@@ -1729,7 +1729,7 @@
    face doesn't exist.  */
 
 #define FACE_FROM_ID(F, ID)				\
-     (((unsigned) (ID) < FRAME_FACE_CACHE (F)->used)	\
+     (UNSIGNED_CMP (ID, <, FRAME_FACE_CACHE (F)->used)	\
       ? FRAME_FACE_CACHE (F)->faces_by_id[ID]		\
       : NULL)
 
@@ -3163,7 +3163,7 @@
                              EMACS_INT pos, EMACS_INT bufpos,
                              EMACS_INT region_beg, EMACS_INT region_end,
                              EMACS_INT *endptr, enum face_id, int mouse);
-int merge_faces (struct frame *, Lisp_Object, int, int);
+int merge_faces (struct frame *, Lisp_Object, EMACS_INT, int);
 int compute_char_face (struct frame *, int, Lisp_Object);
 void free_all_realized_faces (Lisp_Object);
 extern Lisp_Object Qforeground_color, Qbackground_color;

=== modified file 'src/doc.c'
--- src/doc.c	2011-05-12 07:07:06 +0000
+++ src/doc.c	2011-06-13 02:09:34 +0000
@@ -253,9 +253,12 @@
 	  else if (c == '_')
 	    *to++ = 037;
 	  else
-	    error ("\
+	    {
+	      unsigned char uc = c;
+	      error ("\
 Invalid data in documentation file -- %c followed by code %03o",
-		   1, (unsigned)c);
+		     1, uc);
+	    }
 	}
       else
 	*to++ = *from++;

=== modified file 'src/doprnt.c'
--- src/doprnt.c	2011-06-06 19:43:39 +0000
+++ src/doprnt.c	2011-06-14 20:09:52 +0000
@@ -118,10 +118,6 @@
    another macro.  */
 #include "character.h"
 
-#ifndef SIZE_MAX
-# define SIZE_MAX ((size_t) -1)
-#endif
-
 #ifndef DBL_MAX_10_EXP
 #define DBL_MAX_10_EXP 308 /* IEEE double */
 #endif
@@ -329,7 +325,7 @@
 		minlen = atoi (&fmtcpy[1]);
 	      string = va_arg (ap, char *);
 	      tem = strlen (string);
-	      if (tem > STRING_BYTES_MAX)
+	      if (STRING_BYTES_BOUND < tem)
 		error ("String for %%s or %%S format is too long");
 	      width = strwidth (string, tem);
 	      goto doit1;
@@ -338,7 +334,7 @@
 	    doit:
 	      /* Coming here means STRING contains ASCII only.  */
 	      tem = strlen (string);
-	      if (tem > STRING_BYTES_MAX)
+	      if (STRING_BYTES_BOUND < tem)
 		error ("Format width or precision too large");
 	      width = tem;
 	    doit1:

=== modified file 'src/editfns.c'
--- src/editfns.c	2011-06-06 19:43:39 +0000
+++ src/editfns.c	2011-06-14 18:57:19 +0000
@@ -96,7 +96,7 @@
 				     void (*) (Lisp_Object, EMACS_INT,
 					       EMACS_INT, EMACS_INT,
 					       EMACS_INT, int),
-				     int, size_t, Lisp_Object *);
+				     int, ptrdiff_t, Lisp_Object *);
 static Lisp_Object subst_char_in_region_unwind (Lisp_Object);
 static Lisp_Object subst_char_in_region_unwind_1 (Lisp_Object);
 static void transpose_markers (EMACS_INT, EMACS_INT, EMACS_INT, EMACS_INT,
@@ -185,12 +185,13 @@
 usage: (char-to-string CHAR)  */)
   (Lisp_Object character)
 {
-  int len;
+  int c, len;
   unsigned char str[MAX_MULTIBYTE_LENGTH];
 
   CHECK_CHARACTER (character);
+  c = XFASTINT (character);
 
-  len = CHAR_STRING (XFASTINT (character), str);
+  len = CHAR_STRING (c, str);
   return make_string_from_bytes ((char *) str, 1, len);
 }
 
@@ -1857,7 +1858,7 @@
 year values as low as 1901 do work.
 
 usage: (encode-time SECOND MINUTE HOUR DAY MONTH YEAR &optional ZONE)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   time_t value;
   struct tm tm;
@@ -2193,9 +2194,9 @@
 			 void (*insert_from_string_func)
 			      (Lisp_Object, EMACS_INT, EMACS_INT,
 			       EMACS_INT, EMACS_INT, int),
-			 int inherit, size_t nargs, Lisp_Object *args)
+			 int inherit, ptrdiff_t nargs, Lisp_Object *args)
 {
-  register size_t argnum;
+  ptrdiff_t argnum;
   register Lisp_Object val;
 
   for (argnum = 0; argnum < nargs; argnum++)
@@ -2203,16 +2204,15 @@
       val = args[argnum];
       if (CHARACTERP (val))
 	{
+	  int c = XFASTINT (val);
 	  unsigned char str[MAX_MULTIBYTE_LENGTH];
 	  int len;
 
 	  if (!NILP (BVAR (current_buffer, enable_multibyte_characters)))
-	    len = CHAR_STRING (XFASTINT (val), str);
+	    len = CHAR_STRING (c, str);
 	  else
 	    {
-	      str[0] = (ASCII_CHAR_P (XINT (val))
-			? XINT (val)
-			: multibyte_char_to_unibyte (XINT (val)));
+	      str[0] = ASCII_CHAR_P (c) ? c : multibyte_char_to_unibyte (c);
 	      len = 1;
 	    }
 	  (*insert_func) ((char *) str, len);
@@ -2258,7 +2258,7 @@
 and insert the result.
 
 usage: (insert &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   general_insert_function (insert, insert_from_string, 0, nargs, args);
   return Qnil;
@@ -2277,7 +2277,7 @@
 to unibyte for insertion.
 
 usage: (insert-and-inherit &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   general_insert_function (insert_and_inherit, insert_from_string, 1,
 			   nargs, args);
@@ -2294,7 +2294,7 @@
 to unibyte for insertion.
 
 usage: (insert-before-markers &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   general_insert_function (insert_before_markers,
 			   insert_from_string_before_markers, 0,
@@ -2313,7 +2313,7 @@
 to unibyte for insertion.
 
 usage: (insert-before-markers-and-inherit &rest ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   general_insert_function (insert_before_markers_and_inherit,
 			   insert_from_string_before_markers, 1,
@@ -2332,16 +2332,17 @@
   register EMACS_INT stringlen;
   register int i;
   register EMACS_INT n;
-  int len;
+  int c, len;
   unsigned char str[MAX_MULTIBYTE_LENGTH];
 
-  CHECK_NUMBER (character);
+  CHECK_CHARACTER (character);
   CHECK_NUMBER (count);
+  c = XFASTINT (character);
 
   if (!NILP (BVAR (current_buffer, enable_multibyte_characters)))
-    len = CHAR_STRING (XFASTINT (character), str);
+    len = CHAR_STRING (c, str);
   else
-    str[0] = XFASTINT (character), len = 1;
+    str[0] = c, len = 1;
   if (BUF_BYTES_MAX / len < XINT (count))
     error ("Maximum buffer size would be exceeded");
   n = XINT (count) * len;
@@ -2784,17 +2785,20 @@
   int maybe_byte_combining = COMBINING_NO;
   EMACS_INT last_changed = 0;
   int multibyte_p = !NILP (BVAR (current_buffer, enable_multibyte_characters));
+  int fromc, toc;
 
  restart:
 
   validate_region (&start, &end);
-  CHECK_NUMBER (fromchar);
-  CHECK_NUMBER (tochar);
+  CHECK_CHARACTER (fromchar);
+  CHECK_CHARACTER (tochar);
+  fromc = XFASTINT (fromchar);
+  toc = XFASTINT (tochar);
 
   if (multibyte_p)
     {
-      len = CHAR_STRING (XFASTINT (fromchar), fromstr);
-      if (CHAR_STRING (XFASTINT (tochar), tostr) != len)
+      len = CHAR_STRING (fromc, fromstr);
+      if (CHAR_STRING (toc, tostr) != len)
 	error ("Characters in `subst-char-in-region' have different byte-lengths");
       if (!ASCII_BYTE_P (*tostr))
 	{
@@ -2811,8 +2815,8 @@
   else
     {
       len = 1;
-      fromstr[0] = XFASTINT (fromchar);
-      tostr[0] = XFASTINT (tochar);
+      fromstr[0] = fromc;
+      tostr[0] = toc;
     }
 
   pos = XINT (start);
@@ -3084,14 +3088,11 @@
 	    }
 	  else
 	    {
-	      EMACS_INT c;
-
 	      nc = oc;
 	      val = CHAR_TABLE_REF (table, oc);
-	      if (CHARACTERP (val)
-		  && (c = XINT (val), CHAR_VALID_P (c, 0)))
+	      if (CHARACTERP (val))
 		{
-		  nc = c;
+		  nc = XFASTINT (val);
 		  str_len = CHAR_STRING (nc, buf);
 		  str = buf;
 		}
@@ -3385,7 +3386,7 @@
 also `current-message'.
 
 usage: (message FORMAT-STRING &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   if (NILP (args[0])
       || (STRINGP (args[0])
@@ -3413,7 +3414,7 @@
 message; let the minibuffer contents show.
 
 usage: (message-box FORMAT-STRING &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   if (NILP (args[0]))
     {
@@ -3470,7 +3471,7 @@
 message; let the minibuffer contents show.
 
 usage: (message-or-box FORMAT-STRING &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
 #ifdef HAVE_MENUS
   if ((NILP (last_nonmenu_event) || CONSP (last_nonmenu_event))
@@ -3494,11 +3495,11 @@
 Remaining arguments form a sequence of PROPERTY VALUE pairs for text
 properties to add to the result.
 usage: (propertize STRING &rest PROPERTIES)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object properties, string;
   struct gcpro gcpro1, gcpro2;
-  size_t i;
+  ptrdiff_t i;
 
   /* Number of args must be odd.  */
   if ((nargs & 1) == 0)
@@ -3583,13 +3584,13 @@
 specifier truncates the string to the given width.
 
 usage: (format STRING &rest OBJECTS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
-  EMACS_INT n;		/* The number of the next arg to substitute */
+  ptrdiff_t n;		/* The number of the next arg to substitute */
   char initial_buffer[4000];
   char *buf = initial_buffer;
   EMACS_INT bufsize = sizeof initial_buffer;
-  EMACS_INT max_bufsize = STRING_BYTES_MAX + 1;
+  EMACS_INT max_bufsize = STRING_BYTES_BOUND + 1;
   char *p;
   Lisp_Object buf_save_value IF_LINT (= {0});
   register char *format, *end, *format_start;
@@ -3634,7 +3635,7 @@
 
   /* Allocate the info and discarded tables.  */
   {
-    EMACS_INT i;
+    ptrdiff_t i;
     if ((SIZE_MAX - formatlen) / sizeof (struct info) <= nargs)
       memory_full (SIZE_MAX);
     SAFE_ALLOCA (info, struct info *, (nargs + 1) * sizeof *info + formatlen);
@@ -3673,7 +3674,7 @@
   while (format != end)
     {
       /* The values of N and FORMAT when the loop body is entered.  */
-      EMACS_INT n0 = n;
+      ptrdiff_t n0 = n;
       char *format0 = format;
 
       /* Bytes needed to represent the output of this conversion.  */

=== modified file 'src/eval.c'
--- src/eval.c	2011-06-15 18:36:00 +0000
+++ src/eval.c	2011-06-15 18:52:30 +0000
@@ -32,10 +32,6 @@
 #include "xterm.h"
 #endif
 
-#ifndef SIZE_MAX
-# define SIZE_MAX ((size_t) -1)
-#endif
-
 /* This definition is duplicated in alloc.c and keyboard.c.  */
 /* Putting it in lisp.h makes cc bomb out!  */
 
@@ -139,7 +135,7 @@
 
 int handling_signal;
 
-static Lisp_Object funcall_lambda (Lisp_Object, size_t, Lisp_Object *);
+static Lisp_Object funcall_lambda (Lisp_Object, ptrdiff_t, Lisp_Object *);
 static void unwind_to_catch (struct catchtag *, Lisp_Object) NO_RETURN;
 static int interactive_p (int);
 static Lisp_Object apply_lambda (Lisp_Object fun, Lisp_Object args);
@@ -1053,7 +1049,7 @@
   Lisp_Object *temps, tem, lexenv;
   register Lisp_Object elt, varlist;
   int count = SPECPDL_INDEX ();
-  register size_t argnum;
+  ptrdiff_t argnum;
   struct gcpro gcpro1, gcpro2;
   USE_SAFE_ALLOCA;
 
@@ -1609,8 +1605,8 @@
    and ARGS as second argument.  */
 
 Lisp_Object
-internal_condition_case_n (Lisp_Object (*bfun) (size_t, Lisp_Object *),
-			   size_t nargs,
+internal_condition_case_n (Lisp_Object (*bfun) (ptrdiff_t, Lisp_Object *),
+			   ptrdiff_t nargs,
 			   Lisp_Object *args,
 			   Lisp_Object handlers,
 			   Lisp_Object (*hfun) (Lisp_Object))
@@ -1995,7 +1991,7 @@
 {
   char buf[4000];
   size_t size = sizeof buf;
-  size_t size_max = STRING_BYTES_MAX + 1;
+  size_t size_max = STRING_BYTES_BOUND + 1;
   size_t mlen = strlen (m);
   char *buffer = buf;
   size_t used;
@@ -2337,7 +2333,7 @@
 	{
 	  /* Pass a vector of evaluated arguments.  */
 	  Lisp_Object *vals;
-	  register size_t argnum = 0;
+	  ptrdiff_t argnum = 0;
 	  USE_SAFE_ALLOCA;
 
 	  SAFE_ALLOCA_LISP (vals, XINT (numargs));
@@ -2467,9 +2463,9 @@
 Then return the value FUNCTION returns.
 Thus, (apply '+ 1 2 '(3 4)) returns 10.
 usage: (apply FUNCTION &rest ARGUMENTS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
-  register size_t i, numargs;
+  ptrdiff_t i, numargs;
   register Lisp_Object spread_arg;
   register Lisp_Object *funcall_args;
   Lisp_Object fun, retval;
@@ -2551,7 +2547,7 @@
 /* Run hook variables in various ways.  */
 
 static Lisp_Object
-funcall_nil (size_t nargs, Lisp_Object *args)
+funcall_nil (ptrdiff_t nargs, Lisp_Object *args)
 {
   Ffuncall (nargs, args);
   return Qnil;
@@ -2572,10 +2568,10 @@
 Do not use `make-local-variable' to make a hook variable buffer-local.
 Instead, use `add-hook' and specify t for the LOCAL argument.
 usage: (run-hooks &rest HOOKS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object hook[1];
-  register size_t i;
+  ptrdiff_t i;
 
   for (i = 0; i < nargs; i++)
     {
@@ -2601,7 +2597,7 @@
 Do not use `make-local-variable' to make a hook variable buffer-local.
 Instead, use `add-hook' and specify t for the LOCAL argument.
 usage: (run-hook-with-args HOOK &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return run_hook_with_args (nargs, args, funcall_nil);
 }
@@ -2621,13 +2617,13 @@
 Do not use `make-local-variable' to make a hook variable buffer-local.
 Instead, use `add-hook' and specify t for the LOCAL argument.
 usage: (run-hook-with-args-until-success HOOK &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return run_hook_with_args (nargs, args, Ffuncall);
 }
 
 static Lisp_Object
-funcall_not (size_t nargs, Lisp_Object *args)
+funcall_not (ptrdiff_t nargs, Lisp_Object *args)
 {
   return NILP (Ffuncall (nargs, args)) ? Qt : Qnil;
 }
@@ -2646,13 +2642,13 @@
 Do not use `make-local-variable' to make a hook variable buffer-local.
 Instead, use `add-hook' and specify t for the LOCAL argument.
 usage: (run-hook-with-args-until-failure HOOK &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return NILP (run_hook_with_args (nargs, args, funcall_not)) ? Qt : Qnil;
 }
 
 static Lisp_Object
-run_hook_wrapped_funcall (size_t nargs, Lisp_Object *args)
+run_hook_wrapped_funcall (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object tmp = args[0], ret;
   args[0] = args[1];
@@ -2670,7 +2666,7 @@
 As soon as a call to WRAP-FUNCTION returns non-nil, `run-hook-wrapped'
 aborts and returns that value.
 usage: (run-hook-wrapped HOOK WRAP-FUNCTION &rest ARGS)  */)
-     (size_t nargs, Lisp_Object *args)
+     (ptrdiff_t nargs, Lisp_Object *args)
 {
   return run_hook_with_args (nargs, args, run_hook_wrapped_funcall);
 }
@@ -2683,8 +2679,8 @@
    except that it isn't necessary to gcpro ARGS[0].  */
 
 Lisp_Object
-run_hook_with_args (size_t nargs, Lisp_Object *args,
-		    Lisp_Object (*funcall) (size_t nargs, Lisp_Object *args))
+run_hook_with_args (ptrdiff_t nargs, Lisp_Object *args,
+		    Lisp_Object (*funcall) (ptrdiff_t nargs, Lisp_Object *args))
 {
   Lisp_Object sym, val, ret = Qnil;
   struct gcpro gcpro1, gcpro2, gcpro3;
@@ -2957,16 +2953,16 @@
 Return the value that function returns.
 Thus, (funcall 'cons 'x 'y) returns (x . y).
 usage: (funcall FUNCTION &rest ARGUMENTS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object fun, original_fun;
   Lisp_Object funcar;
-  size_t numargs = nargs - 1;
+  ptrdiff_t numargs = nargs - 1;
   Lisp_Object lisp_numargs;
   Lisp_Object val;
   struct backtrace backtrace;
   register Lisp_Object *internal_args;
-  register size_t i;
+  ptrdiff_t i;
 
   QUIT;
   if ((consing_since_gc > gc_cons_threshold
@@ -3120,14 +3116,13 @@
 apply_lambda (Lisp_Object fun, Lisp_Object args)
 {
   Lisp_Object args_left;
-  size_t numargs;
+  ptrdiff_t i, numargs;
   register Lisp_Object *arg_vector;
   struct gcpro gcpro1, gcpro2, gcpro3;
-  register size_t i;
   register Lisp_Object tem;
   USE_SAFE_ALLOCA;
 
-  numargs = XINT (Flength (args));
+  numargs = XFASTINT (Flength (args));
   SAFE_ALLOCA_LISP (arg_vector, numargs);
   args_left = args;
 
@@ -3163,12 +3158,12 @@
    FUN must be either a lambda-expression or a compiled-code object.  */
 
 static Lisp_Object
-funcall_lambda (Lisp_Object fun, size_t nargs,
+funcall_lambda (Lisp_Object fun, ptrdiff_t nargs,
 		register Lisp_Object *arg_vector)
 {
   Lisp_Object val, syms_left, next, lexenv;
   int count = SPECPDL_INDEX ();
-  size_t i;
+  ptrdiff_t i;
   int optional, rest;
 
   if (CONSP (fun))
@@ -3585,7 +3580,7 @@
 	    }
 	  else
 	    {
-	      size_t i;
+	      ptrdiff_t i;
 	      for (i = 0; i < backlist->nargs; i++)
 		{
 		  if (i) write_string (" ", -1);
@@ -3645,7 +3640,7 @@
 mark_backtrace (void)
 {
   register struct backtrace *backlist;
-  register size_t i;
+  ptrdiff_t i;
 
   for (backlist = backtrace_list; backlist; backlist = backlist->next)
     {

=== modified file 'src/fileio.c'
--- src/fileio.c	2011-06-06 19:43:39 +0000
+++ src/fileio.c	2011-06-15 19:29:18 +0000
@@ -643,7 +643,7 @@
 
   if (!make_temp_name_count_initialized_p)
     {
-      make_temp_name_count = (unsigned) time (NULL);
+      make_temp_name_count = time (NULL);
       make_temp_name_count_initialized_p = 1;
     }
 
@@ -3109,6 +3109,21 @@
   return Qnil;
 }
 
+/* Reposition FD to OFFSET, based on WHENCE.  This acts like lseek
+   except that it also tests for OFFSET being out of lseek's range.  */
+static off_t
+emacs_lseek (int fd, EMACS_INT offset, int whence)
+{
+  /* Use "&" rather than "&&" to suppress a bogus GCC warning; see
+     <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43772>.  */
+  if (! ((TYPE_MINIMUM (off_t) <= offset) & (offset <= TYPE_MAXIMUM (off_t))))
+    {
+      errno = EINVAL;
+      return -1;
+    }
+  return lseek (fd, offset, whence);
+}
+
 
 DEFUN ("insert-file-contents", Finsert_file_contents, Sinsert_file_contents,
        1, 5, 0,
@@ -3317,7 +3332,7 @@
 		  nread = emacs_read (fd, read_buf, 1024);
 		  if (nread >= 0)
 		    {
-		      if (lseek (fd, st.st_size - (1024 * 3), 0) < 0)
+		      if (lseek (fd, st.st_size - (1024 * 3), SEEK_SET) < 0)
 			report_file_error ("Setting file position",
 					   Fcons (orig_filename, Qnil));
 		      nread += emacs_read (fd, read_buf + nread, 1024 * 3);
@@ -3361,7 +3376,7 @@
 		  specpdl_ptr--;
 
 		  /* Rewind the file for the actual read done later.  */
-		  if (lseek (fd, 0, 0) < 0)
+		  if (lseek (fd, 0, SEEK_SET) < 0)
 		    report_file_error ("Setting file position",
 				       Fcons (orig_filename, Qnil));
 		}
@@ -3428,7 +3443,7 @@
 
       if (XINT (beg) != 0)
 	{
-	  if (lseek (fd, XINT (beg), 0) < 0)
+	  if (emacs_lseek (fd, XINT (beg), SEEK_SET) < 0)
 	    report_file_error ("Setting file position",
 			       Fcons (orig_filename, Qnil));
 	}
@@ -3500,7 +3515,7 @@
 	    break;
 	  /* How much can we scan in the next step?  */
 	  trial = min (curpos, sizeof buffer);
-	  if (lseek (fd, curpos - trial, 0) < 0)
+	  if (emacs_lseek (fd, curpos - trial, SEEK_SET) < 0)
 	    report_file_error ("Setting file position",
 			       Fcons (orig_filename, Qnil));
 
@@ -3618,7 +3633,7 @@
       /* First read the whole file, performing code conversion into
 	 CONVERSION_BUFFER.  */
 
-      if (lseek (fd, XINT (beg), 0) < 0)
+      if (emacs_lseek (fd, XINT (beg), SEEK_SET) < 0)
 	report_file_error ("Setting file position",
 			   Fcons (orig_filename, Qnil));
 
@@ -3817,7 +3832,7 @@
 
   if (XINT (beg) != 0 || !NILP (replace))
     {
-      if (lseek (fd, XINT (beg), 0) < 0)
+      if (emacs_lseek (fd, XINT (beg), SEEK_SET) < 0)
 	report_file_error ("Setting file position",
 			   Fcons (orig_filename, Qnil));
     }
@@ -4549,9 +4564,9 @@
       long ret;
 
       if (NUMBERP (append))
-	ret = lseek (desc, XINT (append), 1);
+	ret = emacs_lseek (desc, XINT (append), SEEK_CUR);
       else
-	ret = lseek (desc, 0, 2);
+	ret = lseek (desc, 0, SEEK_END);
       if (ret < 0)
 	{
 #ifdef CLASH_DETECTION

=== modified file 'src/floatfns.c'
--- src/floatfns.c	2011-05-05 06:31:14 +0000
+++ src/floatfns.c	2011-06-13 02:27:16 +0000
@@ -507,7 +507,7 @@
 	      if (y & 1)
 		acc *= x;
 	      x *= x;
-	      y = (unsigned)y >> 1;
+	      y >>= 1;
 	    }
 	}
       XSETINT (val, acc);

=== modified file 'src/fns.c'
--- src/fns.c	2011-06-07 01:39:26 +0000
+++ src/fns.c	2011-06-14 23:18:53 +0000
@@ -99,6 +99,10 @@
   return lispy_val;
 }
 \f
+/* Heuristic on how many iterations of a tight loop can be safely done
+   before it's time to do a QUIT.  This must be a power of 2.  */
+enum { QUIT_COUNT_HEURISTIC = 1 << 16 };
+
 /* Random data-structure functions */
 
 DEFUN ("length", Flength, Slength, 1, 1, 0,
@@ -110,7 +114,6 @@
   (register Lisp_Object sequence)
 {
   register Lisp_Object val;
-  register int i;
 
   if (STRINGP (sequence))
     XSETFASTINT (val, SCHARS (sequence));
@@ -124,19 +127,20 @@
     XSETFASTINT (val, ASIZE (sequence) & PSEUDOVECTOR_SIZE_MASK);
   else if (CONSP (sequence))
     {
-      i = 0;
-      while (CONSP (sequence))
+      EMACS_INT i = 0;
+
+      do
 	{
-	  sequence = XCDR (sequence);
-	  ++i;
-
-	  if (!CONSP (sequence))
-	    break;
-
-	  sequence = XCDR (sequence);
-	  ++i;
-	  QUIT;
+	  ++i;
+	  if ((i & (QUIT_COUNT_HEURISTIC - 1)) == 0)
+	    {
+	      if (MOST_POSITIVE_FIXNUM < i)
+		error ("List too long");
+	      QUIT;
+	    }
+	  sequence = XCDR (sequence);
 	}
+      while (CONSP (sequence));
 
       CHECK_LIST_END (sequence, sequence);
 
@@ -159,22 +163,38 @@
 which is at least the number of distinct elements.  */)
   (Lisp_Object list)
 {
-  Lisp_Object tail, halftail, length;
-  int len = 0;
+  Lisp_Object tail, halftail;
+  double hilen = 0;
+  uintmax_t lolen = 1;
+
+  if (! CONSP (list))
+    return 0;
 
   /* halftail is used to detect circular lists.  */
-  halftail = list;
-  for (tail = list; CONSP (tail); tail = XCDR (tail))
+  for (tail = halftail = list; ; )
     {
-      if (EQ (tail, halftail) && len != 0)
-	break;
-      len++;
-      if ((len & 1) == 0)
-	halftail = XCDR (halftail);
+      tail = XCDR (tail);
+      if (! CONSP (tail))
+	break;
+      if (EQ (tail, halftail))
+	break;
+      lolen++;
+      if ((lolen & 1) == 0)
+	{
+	  halftail = XCDR (halftail);
+	  if ((lolen & (QUIT_COUNT_HEURISTIC - 1)) == 0)
+	    {
+	      QUIT;
+	      if (lolen == 0)
+		hilen += UINTMAX_MAX + 1.0;
+	    }
+	}
     }
 
-  XSETINT (length, len);
-  return length;
+  /* If the length does not fit into a fixnum, return a float.
+     On all known practical machines this returns an upper bound on
+     the true length.  */
+  return hilen ? make_float (hilen + lolen) : make_fixnum_or_float (lolen);
 }
 
 DEFUN ("string-bytes", Fstring_bytes, Sstring_bytes, 1, 1, 0,
@@ -344,7 +364,7 @@
   return i1 < SCHARS (s2) ? Qt : Qnil;
 }
 \f
-static Lisp_Object concat (size_t nargs, Lisp_Object *args,
+static Lisp_Object concat (ptrdiff_t nargs, Lisp_Object *args,
 			   enum Lisp_Type target_type, int last_special);
 
 /* ARGSUSED */
@@ -374,7 +394,7 @@
 Each argument may be a list, vector or string.
 The last argument is not copied, just used as the tail of the new list.
 usage: (append &rest SEQUENCES)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return concat (nargs, args, Lisp_Cons, 1);
 }
@@ -384,7 +404,7 @@
 The result is a string whose elements are the elements of all the arguments.
 Each argument may be a string or a list or vector of characters (integers).
 usage: (concat &rest SEQUENCES)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return concat (nargs, args, Lisp_String, 0);
 }
@@ -394,7 +414,7 @@
 The result is a vector whose elements are the elements of all the arguments.
 Each argument may be a list, vector or string.
 usage: (vconcat &rest SEQUENCES)   */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   return concat (nargs, args, Lisp_Vectorlike, 0);
 }
@@ -416,7 +436,7 @@
   if (BOOL_VECTOR_P (arg))
     {
       Lisp_Object val;
-      int size_in_chars
+      ptrdiff_t size_in_chars
 	= ((XBOOL_VECTOR (arg)->size + BOOL_VECTOR_BITS_PER_CHAR - 1)
 	   / BOOL_VECTOR_BITS_PER_CHAR);
 
@@ -436,13 +456,13 @@
    a string and has text properties to be copied.  */
 struct textprop_rec
 {
-  int argnum;			/* refer to ARGS (arguments of `concat') */
+  ptrdiff_t argnum;		/* refer to ARGS (arguments of `concat') */
   EMACS_INT from;		/* refer to ARGS[argnum] (argument string) */
   EMACS_INT to;			/* refer to VAL (the target string) */
 };
 
 static Lisp_Object
-concat (size_t nargs, Lisp_Object *args,
+concat (ptrdiff_t nargs, Lisp_Object *args,
 	enum Lisp_Type target_type, int last_special)
 {
   Lisp_Object val;
@@ -452,7 +472,7 @@
   EMACS_INT toindex_byte = 0;
   register EMACS_INT result_len;
   register EMACS_INT result_len_byte;
-  register size_t argnum;
+  ptrdiff_t argnum;
   Lisp_Object last_tail;
   Lisp_Object prev;
   int some_multibyte;
@@ -463,7 +483,7 @@
      here, and copy the text properties after the concatenation.  */
   struct textprop_rec  *textprops = NULL;
   /* Number of elements in textprops.  */
-  int num_textprops = 0;
+  ptrdiff_t num_textprops = 0;
   USE_SAFE_ALLOCA;
 
   tail = Qnil;
@@ -504,6 +524,7 @@
 	     as well as the number of characters.  */
 	  EMACS_INT i;
 	  Lisp_Object ch;
+	  int c;
 	  EMACS_INT this_len_byte;
 
 	  if (VECTORP (this) || COMPILEDP (this))
@@ -511,9 +532,10 @@
 	      {
 		ch = AREF (this, i);
 		CHECK_CHARACTER (ch);
-		this_len_byte = CHAR_BYTES (XINT (ch));
+		c = XFASTINT (ch);
+		this_len_byte = CHAR_BYTES (c);
 		result_len_byte += this_len_byte;
-		if (! ASCII_CHAR_P (XINT (ch)) && ! CHAR_BYTE8_P (XINT (ch)))
+		if (! ASCII_CHAR_P (c) && ! CHAR_BYTE8_P (c))
 		  some_multibyte = 1;
 	      }
 	  else if (BOOL_VECTOR_P (this) && XBOOL_VECTOR (this)->size > 0)
@@ -523,9 +545,10 @@
 	      {
 		ch = XCAR (this);
 		CHECK_CHARACTER (ch);
-		this_len_byte = CHAR_BYTES (XINT (ch));
+		c = XFASTINT (ch);
+		this_len_byte = CHAR_BYTES (c);
 		result_len_byte += this_len_byte;
-		if (! ASCII_CHAR_P (XINT (ch)) && ! CHAR_BYTE8_P (XINT (ch)))
+		if (! ASCII_CHAR_P (c) && ! CHAR_BYTE8_P (c))
 		  some_multibyte = 1;
 	      }
 	  else if (STRINGP (this))
@@ -631,23 +654,16 @@
 	      {
 		int c;
 		if (STRING_MULTIBYTE (this))
-		  {
-		    FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, this,
-							thisindex,
-							thisindex_byte);
-		    XSETFASTINT (elt, c);
-		  }
+		  FETCH_STRING_CHAR_ADVANCE_NO_CHECK (c, this,
+						      thisindex,
+						      thisindex_byte);
 		else
 		  {
-		    XSETFASTINT (elt, SREF (this, thisindex)); thisindex++;
-		    if (some_multibyte
-			&& !ASCII_CHAR_P (XINT (elt))
-			&& XINT (elt) < 0400)
-		      {
-			c = BYTE8_TO_CHAR (XINT (elt));
-			XSETINT (elt, c);
-		      }
+		    c = SREF (this, thisindex); thisindex++;
+		    if (some_multibyte && !ASCII_CHAR_P (c))
+		      c = BYTE8_TO_CHAR (c);
 		  }
+		XSETFASTINT (elt, c);
 	      }
 	    else if (BOOL_VECTOR_P (this))
 	      {
@@ -679,12 +695,13 @@
 	      }
 	    else
 	      {
-		CHECK_NUMBER (elt);
+		int c;
+		CHECK_CHARACTER (elt);
+		c = XFASTINT (elt);
 		if (some_multibyte)
-		  toindex_byte += CHAR_STRING (XINT (elt),
-					       SDATA (val) + toindex_byte);
+		  toindex_byte += CHAR_STRING (c, SDATA (val) + toindex_byte);
 		else
-		  SSET (val, toindex_byte++, XINT (elt));
+		  SSET (val, toindex_byte++, c);
 		toindex++;
 	      }
 	  }
@@ -1269,7 +1286,7 @@
        doc: /* Take cdr N times on LIST, return the result.  */)
   (Lisp_Object n, Lisp_Object list)
 {
-  register int i, num;
+  EMACS_INT i, num;
   CHECK_NUMBER (n);
   num = XINT (n);
   for (i = 0; i < num && !NILP (list); i++)
@@ -1734,7 +1751,7 @@
   Lisp_Object front, back;
   register Lisp_Object len, tem;
   struct gcpro gcpro1, gcpro2;
-  register int length;
+  EMACS_INT length;
 
   front = list;
   len = Flength (list);
@@ -2220,9 +2237,9 @@
        doc: /* Concatenate any number of lists by altering them.
 Only the last argument is not altered, and need not be a list.
 usage: (nconc &rest LISTS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
-  register size_t argnum;
+  ptrdiff_t argnum;
   register Lisp_Object tail, tem, val;
 
   val = tail = Qnil;
@@ -2345,9 +2362,8 @@
 {
   Lisp_Object len;
   register EMACS_INT leni;
-  int nargs;
+  ptrdiff_t i, nargs;
   register Lisp_Object *args;
-  register EMACS_INT i;
   struct gcpro gcpro1;
   Lisp_Object ret;
   USE_SAFE_ALLOCA;
@@ -2526,8 +2542,8 @@
 
   while (loads-- > 0)
     {
-      Lisp_Object load = (NILP (use_floats) ?
-			  make_number ((int) (100.0 * load_ave[loads]))
+      Lisp_Object load = (NILP (use_floats)
+			  ? make_number (100.0 * load_ave[loads])
 			  : make_float (load_ave[loads]));
       ret = Fcons (load, ret);
     }
@@ -2751,7 +2767,7 @@
        doc: /* Apply the value of WIDGET's PROPERTY to the widget itself.
 ARGS are passed as extra arguments to the function.
 usage: (widget-apply WIDGET PROPERTY &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   /* This function can GC. */
   Lisp_Object newargs[3];
@@ -3356,7 +3372,7 @@
 /* Function prototypes.  */
 
 static struct Lisp_Hash_Table *check_hash_table (Lisp_Object);
-static size_t get_key_arg (Lisp_Object, size_t, Lisp_Object *, char *);
+static ptrdiff_t get_key_arg (Lisp_Object, ptrdiff_t, Lisp_Object *, char *);
 static void maybe_resize_hash_table (struct Lisp_Hash_Table *);
 static int sweep_weak_table (struct Lisp_Hash_Table *, int);
 
@@ -3383,13 +3399,9 @@
 EMACS_INT
 next_almost_prime (EMACS_INT n)
 {
-  if (n % 2 == 0)
-    n += 1;
-  if (n % 3 == 0)
-    n += 2;
-  if (n % 7 == 0)
-    n += 4;
-  return n;
+  for (n |= 1; ; n += 2)
+    if (n % 3 != 0 && n % 5 != 0 && n % 7 != 0)
+      return n;
 }
 
 
@@ -3399,10 +3411,10 @@
    0.  This function is used to extract a keyword/argument pair from
    a DEFUN parameter list.  */
 
-static size_t
-get_key_arg (Lisp_Object key, size_t nargs, Lisp_Object *args, char *used)
+static ptrdiff_t
+get_key_arg (Lisp_Object key, ptrdiff_t nargs, Lisp_Object *args, char *used)
 {
-  size_t i;
+  ptrdiff_t i;
 
   for (i = 1; i < nargs; i++)
     if (!used[i - 1] && EQ (args[i - 1], key))
@@ -4300,12 +4312,12 @@
 is nil.
 
 usage: (make-hash-table &rest KEYWORD-ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object test, size, rehash_size, rehash_threshold, weak;
   Lisp_Object user_test, user_hash;
   char *used;
-  size_t i;
+  ptrdiff_t i;
 
   /* The vector `used' is used to keep track of arguments that
      have been consumed.  */

=== modified file 'src/font.c'
--- src/font.c	2011-06-06 19:43:39 +0000
+++ src/font.c	2011-06-14 18:57:19 +0000
@@ -3829,10 +3829,10 @@
 language system must contain `mark' feature.
 
 usage: (font-spec ARGS...)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object spec = font_make_spec ();
-  size_t i;
+  ptrdiff_t i;
 
   for (i = 0; i < nargs; i += 2)
     {

=== modified file 'src/fontset.c'
--- src/fontset.c	2011-06-06 19:43:39 +0000
+++ src/fontset.c	2011-06-13 04:55:03 +0000
@@ -1851,7 +1851,7 @@
       face_id = face_at_buffer_position (w, pos, -1, -1, &dummy,
 					 pos + 100, 0, -1);
     }
-  if (! CHAR_VALID_P (c, 0))
+  if (! CHAR_VALID_P (c))
     return Qnil;
   face_id = FACE_FOR_CHAR (f, FACE_FROM_ID (f, face_id), c, pos, Qnil);
   face = FACE_FROM_ID (f, face_id);

=== modified file 'src/frame.c'
--- src/frame.c	2011-06-12 10:16:46 +0000
+++ src/frame.c	2011-06-14 18:57:19 +0000
@@ -2807,7 +2807,7 @@
   /* Record in these vectors all the parms specified.  */
   Lisp_Object *parms;
   Lisp_Object *values;
-  size_t i, p;
+  ptrdiff_t i, p;
   int left_no_change = 0, top_no_change = 0;
   int icon_left_no_change = 0, icon_top_no_change = 0;
   int size_changed = 0;

=== modified file 'src/keyboard.c'
--- src/keyboard.c	2011-06-06 05:48:28 +0000
+++ src/keyboard.c	2011-06-14 18:57:19 +0000
@@ -448,7 +448,7 @@
 #endif
 static Lisp_Object modify_event_symbol (EMACS_INT, unsigned, Lisp_Object,
                                         Lisp_Object, const char *const *,
-                                        Lisp_Object *, unsigned);
+                                        Lisp_Object *, EMACS_INT);
 static Lisp_Object make_lispy_switch_frame (Lisp_Object);
 static int help_char_p (Lisp_Object);
 static void save_getcjmp (jmp_buf);
@@ -1901,7 +1901,7 @@
 }
 
 static Lisp_Object
-safe_run_hook_funcall (size_t nargs, Lisp_Object *args)
+safe_run_hook_funcall (ptrdiff_t nargs, Lisp_Object *args)
 {
   eassert (nargs == 1);
   if (CONSP (Vinhibit_quit))
@@ -2906,9 +2906,13 @@
 	goto exit;
 
       if ((STRINGP (KVAR (current_kboard, Vkeyboard_translate_table))
-	   && SCHARS (KVAR (current_kboard, Vkeyboard_translate_table)) > (unsigned) XFASTINT (c))
+	   && UNSIGNED_CMP (XFASTINT (c), <,
+			    SCHARS (KVAR (current_kboard,
+					  Vkeyboard_translate_table))))
 	  || (VECTORP (KVAR (current_kboard, Vkeyboard_translate_table))
-	      && ASIZE (KVAR (current_kboard, Vkeyboard_translate_table)) > (unsigned) XFASTINT (c))
+	      && UNSIGNED_CMP (XFASTINT (c), <,
+			       ASIZE (KVAR (current_kboard,
+					    Vkeyboard_translate_table))))
 	  || (CHAR_TABLE_P (KVAR (current_kboard, Vkeyboard_translate_table))
 	      && CHARACTERP (c)))
 	{
@@ -2955,9 +2959,7 @@
      save the echo area contents for it to refer to.  */
   if (INTEGERP (c)
       && ! NILP (Vinput_method_function)
-      && (unsigned) XINT (c) >= ' '
-      && (unsigned) XINT (c) != 127
-      && (unsigned) XINT (c) < 256)
+      && ' ' <= XINT (c) && XINT (c) < 256 && XINT (c) != 127)
     {
       previous_echo_area_message = Fcurrent_message ();
       Vinput_method_previous_message = previous_echo_area_message;
@@ -2982,9 +2984,7 @@
       /* Don't run the input method within a key sequence,
 	 after the first event of the key sequence.  */
       && NILP (prev_event)
-      && (unsigned) XINT (c) >= ' '
-      && (unsigned) XINT (c) != 127
-      && (unsigned) XINT (c) < 256)
+      && ' ' <= XINT (c) && XINT (c) < 256 && XINT (c) != 127)
     {
       Lisp_Object keys;
       int key_count, key_count_reset;
@@ -5391,7 +5391,7 @@
 				      Qfunction_key,
 				      KVAR (current_kboard, Vsystem_key_alist),
 				      0, &KVAR (current_kboard, system_key_syms),
-				      (unsigned) -1);
+				      TYPE_MAXIMUM (EMACS_INT));
 	}
 
       return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET,
@@ -6410,7 +6410,7 @@
 static Lisp_Object
 modify_event_symbol (EMACS_INT symbol_num, unsigned int modifiers, Lisp_Object symbol_kind,
 		     Lisp_Object name_alist_or_stem, const char *const *name_table,
-		     Lisp_Object *symbol_table, unsigned int table_size)
+		     Lisp_Object *symbol_table, EMACS_INT table_size)
 {
   Lisp_Object value;
   Lisp_Object symbol_int;

=== modified file 'src/lisp.h'
--- src/lisp.h	2011-06-11 21:31:32 +0000
+++ src/lisp.h	2011-06-14 18:57:19 +0000
@@ -60,6 +60,21 @@
 # define EMACS_UINT unsigned EMACS_INT
 #endif
 
+/* Use pD to format ptrdiff_t values, which suffice for indexes into
+   buffers and strings.  Emacs never allocates objects larger than
+   PTRDIFF_MAX bytes, as they cause problems with pointer subtraction.
+   In C99, pD can always be "t"; configure it here for the sake of
+   pre-C99 libraries such as glibc 2.0 and Solaris 8.  */
+#if PTRDIFF_MAX == INT_MAX
+# define pD ""
+#elif PTRDIFF_MAX == LONG_MAX
+# define pD "l"
+#elif PTRDIFF_MAX == LLONG_MAX
+# define pD "ll"
+#else
+# define pD "t"
+#endif
+
 /* Extra internal type checking?  */
 
 #ifdef ENABLE_CHECKING
@@ -765,11 +780,19 @@
 
 #endif /* not GC_CHECK_STRING_BYTES */
 
-/* A string cannot contain more bytes than a fixnum can represent,
-   nor can it be so long that C pointer arithmetic stops working on
-   the string plus a terminating null.  */
-#define STRING_BYTES_MAX  \
-  min (MOST_POSITIVE_FIXNUM, min (SIZE_MAX, PTRDIFF_MAX) - 1)
+/* An upper bound on the number of bytes in a Lisp string, not
+   counting the terminating null.  This a tight enough bound to
+   prevent integer overflow errors that would otherwise occur during
+   string size calculations.  A string cannot contain more bytes than
+   a fixnum can represent, nor can it be so long that C pointer
+   arithmetic stops working on the string plus its terminating null.
+   Although the actual size limit (see STRING_BYTES_MAX in alloc.c)
+   may be a bit smaller than STRING_BYTES_BOUND, calculating it here
+   would expose alloc.c internal details that we'd rather keep
+   private.  The cast to ptrdiff_t ensures that STRING_BYTES_BOUND is
+   signed.  */
+#define STRING_BYTES_BOUND  \
+  min (MOST_POSITIVE_FIXNUM, (ptrdiff_t) min (SIZE_MAX, PTRDIFF_MAX) - 1)
 
 /* Mark STR as a unibyte string.  */
 #define STRING_SET_UNIBYTE(STR)  \
@@ -888,8 +911,18 @@
 
 #endif	/* not __GNUC__ */
 
+/* Compute A OP B, using the unsigned comparison operator OP.  A and B
+   should be integer expressions.  This is not the same as
+   mathemeatical comparison; for example, UNSIGNED_CMP (0, <, -1)
+   returns 1.  For efficiency, prefer plain unsigned comparison if A
+   and B's sizes both fit (after integer promotion).  */
+#define UNSIGNED_CMP(a, op, b)						\
+  (max (sizeof ((a) + 0), sizeof ((b) + 0)) <= sizeof (unsigned)	\
+   ? ((a) + (unsigned) 0) op ((b) + (unsigned) 0)			\
+   : ((a) + (uintmax_t) 0) op ((b) + (uintmax_t) 0))
+
 /* Nonzero iff C is an ASCII character.  */
-#define ASCII_CHAR_P(c) ((unsigned) (c) < 0x80)
+#define ASCII_CHAR_P(c) UNSIGNED_CMP (c, <, 0x80)
 
 /* Almost equivalent to Faref (CT, IDX) with optimization for ASCII
    characters.  Do not check validity of CT.  */
@@ -908,8 +941,7 @@
 /* Equivalent to Faset (CT, IDX, VAL) with optimization for ASCII and
    8-bit European characters.  Do not check validity of CT.  */
 #define CHAR_TABLE_SET(CT, IDX, VAL)					\
-  (((IDX) >= 0 && ASCII_CHAR_P (IDX)					\
-    && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii))			\
+  (ASCII_CHAR_P (IDX) && SUB_CHAR_TABLE_P (XCHAR_TABLE (CT)->ascii)	\
    ? XSUB_CHAR_TABLE (XCHAR_TABLE (CT)->ascii)->contents[IDX] = VAL	\
    : char_table_set (CT, IDX, VAL))
 
@@ -1007,7 +1039,7 @@
       Lisp_Object (*a7) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
       Lisp_Object (*a8) (Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object);
       Lisp_Object (*aUNEVALLED) (Lisp_Object args);
-      Lisp_Object (*aMANY) (size_t, Lisp_Object *);
+      Lisp_Object (*aMANY) (ptrdiff_t, Lisp_Object *);
     } function;
     short min_args, max_args;
     const char *symbol_name;
@@ -1447,7 +1479,7 @@
        area containing INTEGER potential Lisp_Objects.  */
     unsigned int dogc : 1;
     void *pointer;
-    int integer;
+    ptrdiff_t integer;
   };
 
 
@@ -1576,7 +1608,7 @@
 #define SET_GLYPH(glyph, char, face) ((glyph).ch = (char), (glyph).face_id = (face))
 
 /* Return 1 if GLYPH contains valid character code.  */
-#define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph), 1)
+#define GLYPH_CHAR_VALID_P(glyph) CHAR_VALID_P (GLYPH_CHAR (glyph))
 
 
 /* Glyph Code from a display vector may either be an integer which
@@ -1590,7 +1622,7 @@
   (CONSP (gc) ? XINT (XCDR (gc)) : INTEGERP (gc) ? (XINT (gc) >> CHARACTERBITS) : DEFAULT_FACE_ID)
 
 /* Return 1 if glyph code from display vector contains valid character code.  */
-#define GLYPH_CODE_CHAR_VALID_P(gc) CHAR_VALID_P (GLYPH_CODE_CHAR (gc), 1)
+#define GLYPH_CODE_CHAR_VALID_P(gc) CHAR_VALID_P (GLYPH_CODE_CHAR (gc))
 
 #define GLYPH_CODE_P(gc) ((CONSP (gc) && INTEGERP (XCAR (gc)) && INTEGERP (XCDR (gc))) || INTEGERP (gc))
 
@@ -1864,7 +1896,7 @@
 
 /* Note that the weird token-substitution semantics of ANSI C makes
    this work for MANY and UNEVALLED.  */
-#define DEFUN_ARGS_MANY		(size_t, Lisp_Object *)
+#define DEFUN_ARGS_MANY		(ptrdiff_t, Lisp_Object *)
 #define DEFUN_ARGS_UNEVALLED	(Lisp_Object)
 #define DEFUN_ARGS_0	(void)
 #define DEFUN_ARGS_1	(Lisp_Object)
@@ -2129,7 +2161,7 @@
   volatile Lisp_Object *var;
 
   /* Number of consecutive protected variables.  */
-  size_t nvars;
+  ptrdiff_t nvars;
 
 #ifdef DEBUG_GCPRO
   int level;
@@ -2778,7 +2810,7 @@
 extern Lisp_Object make_float (double);
 extern void display_malloc_warning (void);
 extern int inhibit_garbage_collection (void);
-extern Lisp_Object make_save_value (void *, int);
+extern Lisp_Object make_save_value (void *, ptrdiff_t);
 extern void free_marker (Lisp_Object);
 extern void free_cons (struct Lisp_Cons *);
 extern void init_alloc_once (void);
@@ -2890,9 +2922,9 @@
 EXFUN (Frun_hook_with_args, MANY);
 EXFUN (Frun_hook_with_args_until_failure, MANY);
 extern void run_hook_with_args_2 (Lisp_Object, Lisp_Object, Lisp_Object);
-extern Lisp_Object run_hook_with_args (size_t nargs, Lisp_Object *args,
+extern Lisp_Object run_hook_with_args (ptrdiff_t nargs, Lisp_Object *args,
 				       Lisp_Object (*funcall)
-				       (size_t nargs, Lisp_Object *args));
+				       (ptrdiff_t nargs, Lisp_Object *args));
 EXFUN (Fprogn, UNEVALLED);
 EXFUN (Finteractive_p, 0);
 EXFUN (Fthrow, 2) NO_RETURN;
@@ -2924,7 +2956,7 @@
 extern Lisp_Object internal_condition_case (Lisp_Object (*) (void), Lisp_Object, Lisp_Object (*) (Lisp_Object));
 extern Lisp_Object internal_condition_case_1 (Lisp_Object (*) (Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object));
 extern Lisp_Object internal_condition_case_2 (Lisp_Object (*) (Lisp_Object, Lisp_Object), Lisp_Object, Lisp_Object, Lisp_Object, Lisp_Object (*) (Lisp_Object));
-extern Lisp_Object internal_condition_case_n (Lisp_Object (*) (size_t, Lisp_Object *), size_t, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object));
+extern Lisp_Object internal_condition_case_n (Lisp_Object (*) (ptrdiff_t, Lisp_Object *), ptrdiff_t, Lisp_Object *, Lisp_Object, Lisp_Object (*) (Lisp_Object));
 extern void specbind (Lisp_Object, Lisp_Object);
 extern void record_unwind_protect (Lisp_Object (*) (Lisp_Object), Lisp_Object);
 extern Lisp_Object unbind_to (int, Lisp_Object);
@@ -2934,7 +2966,7 @@
 extern void do_autoload (Lisp_Object, Lisp_Object);
 extern Lisp_Object un_autoload (Lisp_Object);
 extern void init_eval_once (void);
-extern Lisp_Object safe_call (size_t, Lisp_Object *);
+extern Lisp_Object safe_call (ptrdiff_t, Lisp_Object *);
 extern Lisp_Object safe_call1 (Lisp_Object, Lisp_Object);
 extern Lisp_Object safe_call2 (Lisp_Object, Lisp_Object, Lisp_Object);
 extern void init_eval (void);
@@ -3316,7 +3348,7 @@
 #endif
 extern void unmark_byte_stack (void);
 extern Lisp_Object exec_byte_code (Lisp_Object, Lisp_Object, Lisp_Object,
-				   Lisp_Object, int, Lisp_Object *);
+				   Lisp_Object, ptrdiff_t, Lisp_Object *);
 
 /* Defined in macros.c */
 extern Lisp_Object Qexecute_kbd_macro;
@@ -3671,18 +3703,19 @@
 
 #define SAFE_ALLOCA_LISP(buf, nelt)			  \
   do {							  \
-    int size_ = (nelt) * sizeof (Lisp_Object);		  \
-    if (size_ < MAX_ALLOCA)				  \
-      buf = (Lisp_Object *) alloca (size_);		  \
-    else						  \
+    if ((nelt) < MAX_ALLOCA / sizeof (Lisp_Object))	  \
+      buf = (Lisp_Object *) alloca ((nelt) * sizeof (Lisp_Object));	\
+    else if ((nelt) < min (PTRDIFF_MAX, SIZE_MAX) / sizeof (Lisp_Object)) \
       {							  \
 	Lisp_Object arg_;				  \
-	buf = (Lisp_Object *) xmalloc (size_);		  \
+	buf = (Lisp_Object *) xmalloc ((nelt) * sizeof (Lisp_Object));	\
 	arg_ = make_save_value (buf, nelt);		  \
 	XSAVE_VALUE (arg_)->dogc = 1;			  \
 	sa_must_free = 1;				  \
 	record_unwind_protect (safe_alloca_unwind, arg_); \
       }							  \
+    else						  \
+      memory_full (SIZE_MAX);				  \
   } while (0)
 
 

=== modified file 'src/lread.c'
--- src/lread.c	2011-05-12 07:07:06 +0000
+++ src/lread.c	2011-06-13 05:18:27 +0000
@@ -1203,12 +1203,15 @@
 #ifdef DOS_NT
 	  fmode = "rb";
 #endif /* DOS_NT */
-	  stat (SSDATA (efound), &s1);
-	  SSET (efound, SBYTES (efound) - 1, 0);
-	  result = stat (SSDATA (efound), &s2);
-	  SSET (efound, SBYTES (efound) - 1, 'c');
+	  result = stat (SSDATA (efound), &s1);
+	  if (result == 0)
+	    {
+	      SSET (efound, SBYTES (efound) - 1, 0);
+	      result = stat (SSDATA (efound), &s2);
+	      SSET (efound, SBYTES (efound) - 1, 'c');
+	    }
 
-	  if (result >= 0 && (unsigned) s1.st_mtime < (unsigned) s2.st_mtime)
+	  if (result == 0 && s1.st_mtime < s2.st_mtime)
 	    {
 	      /* Make the progress messages mention that source is newer.  */
 	      newer = 1;

=== modified file 'src/mem-limits.h'
--- src/mem-limits.h	2011-05-23 00:22:43 +0000
+++ src/mem-limits.h	2011-06-14 04:49:24 +0000
@@ -33,8 +33,6 @@
 # endif
 #endif
 
-typedef unsigned long SIZE;
-
 extern char *start_of_data (void);
 #if defined USE_LSB_TAG
 #define EXCEEDS_LISP_PTR(ptr) 0

=== modified file 'src/print.c'
--- src/print.c	2011-05-31 06:05:00 +0000
+++ src/print.c	2011-06-08 21:43:46 +0000
@@ -2004,7 +2004,7 @@
 
 	case Lisp_Misc_Save_Value:
 	  strout ("#<save_value ", -1, -1, printcharfun);
-	  sprintf(buf, "ptr=%p int=%d",
+	  sprintf(buf, "ptr=%p int=%"pD"d",
 		  XSAVE_VALUE (obj)->pointer,
 		  XSAVE_VALUE (obj)->integer);
 	  strout (buf, -1, -1, printcharfun);

=== modified file 'src/process.c'
--- src/process.c	2011-06-11 21:31:32 +0000
+++ src/process.c	2011-06-14 18:57:19 +0000
@@ -1272,11 +1272,11 @@
 syntax.
 
 usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS)  */)
-  (size_t nargs, register Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object buffer, name, program, proc, current_dir, tem;
   register unsigned char **new_argv;
-  register size_t i;
+  ptrdiff_t i;
   int count = SPECPDL_INDEX ();
 
   buffer = args[1];
@@ -2436,7 +2436,7 @@
 \(serial-process-configure :port "\\\\.\\COM13" :bytesize 7)
 
 usage: (serial-process-configure &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   struct Lisp_Process *p;
   Lisp_Object contact = Qnil;
@@ -2554,7 +2554,7 @@
 \(make-serial-process :port "/dev/tty.BlueConsole-SPP-1" :speed nil)
 
 usage:  (make-serial-process &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   int fd = -1;
   Lisp_Object proc, contact, port;
@@ -2832,7 +2832,7 @@
 information, is available via the `process-contact' function.
 
 usage: (make-network-process &rest ARGS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object proc;
   Lisp_Object contact;
@@ -3148,7 +3148,7 @@
 
   for (lres = res; lres; lres = lres->ai_next)
     {
-      size_t optn;
+      ptrdiff_t optn;
       int optbits;
 
 #ifdef WINDOWSNT

=== modified file 'src/puresize.h'
--- src/puresize.h	2011-01-25 04:08:28 +0000
+++ src/puresize.h	2011-06-09 19:08:29 +0000
@@ -86,7 +86,6 @@
   && (PNTR_COMPARISON_TYPE) XPNTR (obj) >= (PNTR_COMPARISON_TYPE) pure)
 
 #else /* not VIRT_ADDR_VARIES */
-/* When PNTR_COMPARISON_TYPE is not the default (unsigned int).  */
 
 extern char my_edata[];
 
@@ -94,4 +93,3 @@
   ((PNTR_COMPARISON_TYPE) XPNTR (obj) < (PNTR_COMPARISON_TYPE) my_edata)
 
 #endif /* VIRT_ADDRESS_VARIES */
-

=== modified file 'src/sound.c'
--- src/sound.c	2011-04-15 08:47:25 +0000
+++ src/sound.c	2011-06-13 06:49:00 +0000
@@ -1447,7 +1447,7 @@
     }
   else if (FLOATP (attrs[SOUND_VOLUME]))
     {
-      ui_volume_tmp = (unsigned long) XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100;
+      ui_volume_tmp = XFLOAT_DATA (attrs[SOUND_VOLUME]) * 100;
     }
   /*
     Based on some experiments I have conducted, a value of 100 or less

=== modified file 'src/unexelf.c'
--- src/unexelf.c	2011-03-30 00:19:27 +0000
+++ src/unexelf.c	2011-06-13 05:55:57 +0000
@@ -391,6 +391,7 @@
 extern void fatal (const char *msgid, ...);
 
 #include <sys/types.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <memory.h>
@@ -784,7 +785,7 @@
   fprintf (stderr, "new_data2_incr %x\n", new_data2_incr);
 #endif
 
-  if ((unsigned) new_bss_addr < (unsigned) old_bss_addr + old_bss_size)
+  if ((uintptr_t) new_bss_addr < (uintptr_t) old_bss_addr + old_bss_size)
     fatal (".bss shrank when undumping???\n", 0, 0);
 
   /* Set the output file to the right size.  Allocate a buffer to hold

=== modified file 'src/vm-limit.c'
--- src/vm-limit.c	2011-01-25 04:08:28 +0000
+++ src/vm-limit.c	2011-06-14 04:49:24 +0000
@@ -166,9 +166,9 @@
 check_memory_limits (void)
 {
 #ifdef REL_ALLOC
-  extern POINTER (*real_morecore) (SIZE);
+  extern POINTER (*real_morecore) (long);
 #endif
-  extern POINTER (*__morecore) (SIZE);
+  extern POINTER (*__morecore) (long);
 
   register POINTER cp;
   unsigned long five_percent;
@@ -297,4 +297,3 @@
   /* Force data limit to be recalculated on each run.  */
   lim_data = 0;
 }
-

=== modified file 'src/widget.c'
--- src/widget.c	2011-06-11 21:31:32 +0000
+++ src/widget.c	2011-06-13 08:00:15 +0000
@@ -516,14 +516,11 @@
   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;
 }
@@ -582,8 +579,7 @@
     = 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;

=== modified file 'src/xdisp.c'
--- src/xdisp.c	2011-06-10 06:55:18 +0000
+++ src/xdisp.c	2011-06-14 18:57:19 +0000
@@ -1335,7 +1335,7 @@
   int c;
 
   c = STRING_CHAR_AND_LENGTH (str, *len);
-  if (!CHAR_VALID_P (c, 1))
+  if (!CHAR_VALID_P (c))
     /* We may not change the length here because other places in Emacs
        don't use this function, i.e. they silently accept invalid
        characters.  */
@@ -2138,7 +2138,7 @@
    redisplay during the evaluation.  */
 
 Lisp_Object
-safe_call (size_t nargs, Lisp_Object *args)
+safe_call (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object val;
 
@@ -5819,7 +5819,8 @@
 		 display.  Then, set IT->dpvec to these glyphs.  */
 	      Lisp_Object gc;
 	      int ctl_len;
-	      int face_id, lface_id = 0 ;
+	      int face_id;
+	      EMACS_INT lface_id = 0;
 	      int escape_glyph;
 
 	      /* Handle control characters with ^.  */
@@ -6374,7 +6375,7 @@
 	it->face_id = it->dpvec_face_id;
       else
 	{
-	  int lface_id = GLYPH_CODE_FACE (gc);
+	  EMACS_INT lface_id = GLYPH_CODE_FACE (gc);
 	  if (lface_id > 0)
 	    it->face_id = merge_faces (it->f, Qt, lface_id,
 				       it->saved_face_id);
@@ -16570,7 +16571,7 @@
 DEFUN ("trace-to-stderr", Ftrace_to_stderr, Strace_to_stderr, 1, MANY, "",
        doc: /* Like `format', but print result to stderr.
 usage: (trace-to-stderr STRING &rest OBJECTS)  */)
-  (size_t nargs, Lisp_Object *args)
+  (ptrdiff_t nargs, Lisp_Object *args)
 {
   Lisp_Object s = Fformat (nargs, args);
   fprintf (stderr, "%s", SDATA (s));
@@ -19379,7 +19380,8 @@
       else if (CHARACTERP (eoltype))
 	{
 	  unsigned char *tmp = (unsigned char *) alloca (MAX_MULTIBYTE_LENGTH);
-	  eol_str_len = CHAR_STRING (XINT (eoltype), tmp);
+	  int c = XFASTINT (eoltype);
+	  eol_str_len = CHAR_STRING (c, tmp);
 	  eol_str = tmp;
 	}
       else

=== modified file 'src/xfaces.c'
--- src/xfaces.c	2011-05-28 22:39:39 +0000
+++ src/xfaces.c	2011-06-13 05:15:27 +0000
@@ -6223,7 +6223,8 @@
 */
 
 int
-merge_faces (struct frame *f, Lisp_Object face_name, int face_id, int base_face_id)
+merge_faces (struct frame *f, Lisp_Object face_name, EMACS_INT face_id,
+	     int base_face_id)
 {
   Lisp_Object attrs[LFACE_VECTOR_SIZE];
   struct face *base_face;

=== modified file 'src/xfns.c'
--- src/xfns.c	2011-06-14 21:08:20 +0000
+++ src/xfns.c	2011-06-15 18:07:38 +0000
@@ -1074,8 +1074,7 @@
   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))

=== modified file 'src/xterm.c'
--- src/xterm.c	2011-06-11 21:31:32 +0000
+++ src/xterm.c	2011-06-13 16:08:46 +0000
@@ -1697,16 +1697,18 @@
 	 a least-squares matching, which is what X uses for closest
 	 color matching with StaticColor visuals.  */
       int nearest, i;
-      unsigned long nearest_delta = ~ (unsigned long) 0;
+      int max_color_delta = 255;
+      int max_delta = 3 * max_color_delta;
+      int nearest_delta = max_delta + 1;
       int ncells;
       const XColor *cells = x_color_cells (dpy, &ncells);
 
       for (nearest = i = 0; i < ncells; ++i)
 	{
-	  long dred   = (color->red   >> 8) - (cells[i].red   >> 8);
-	  long dgreen = (color->green >> 8) - (cells[i].green >> 8);
-	  long dblue  = (color->blue  >> 8) - (cells[i].blue  >> 8);
-	  unsigned long delta = dred * dred + dgreen * dgreen + dblue * dblue;
+	  int dred   = (color->red   >> 8) - (cells[i].red   >> 8);
+	  int dgreen = (color->green >> 8) - (cells[i].green >> 8);
+	  int dblue  = (color->blue  >> 8) - (cells[i].blue  >> 8);
+	  int delta = dred * dred + dgreen * dgreen + dblue * dblue;
 
 	  if (delta < nearest_delta)
 	    {
@@ -6442,8 +6444,7 @@
                            keys".  It seems there's no cleaner way.
                            Test IsModifierKey to avoid handling
                            mode_switch incorrectly.  */
-                        || ((unsigned) (keysym) >= XK_Select
-                            && (unsigned)(keysym) < XK_KP_Space)
+                        || (XK_Select <= keysym && keysym < XK_KP_Space)
 #endif
 #ifdef XK_dead_circumflex
                         || orig_keysym == XK_dead_circumflex
@@ -6496,10 +6497,8 @@
                                 should be treated similarly to
                                 Mode_switch by Emacs. */
 #if defined XK_ISO_Lock && defined XK_ISO_Last_Group_Lock
-                             || ((unsigned)(orig_keysym)
-                                 >=  XK_ISO_Lock
-                                 && (unsigned)(orig_keysym)
-                                 <= XK_ISO_Last_Group_Lock)
+                             || (XK_ISO_Lock <= orig_keysym
+				 && orig_keysym <= XK_ISO_Last_Group_Lock)
 #endif
                              ))
 	    {
@@ -10275,7 +10274,7 @@
       = 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

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* bug#8873: Acknowledgement (Integer overflow and signedness fixes (2011-06-15 batch))
       [not found] ` <handler.8873.B.130816768116759.ack@debbugs.gnu.org>
@ 2011-06-15 19:58   ` Paul Eggert
  0 siblings, 0 replies; 2+ messages in thread
From: Paul Eggert @ 2011-06-15 19:58 UTC (permalink / raw)
  To: 8873-done

I committed the abovementioned patch for this in the Emacs trunk
in revision 104599.





^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2011-06-15 19:58 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
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2011-06-15 19:53 bug#8873: Integer overflow and signedness fixes (2011-06-15 batch) Paul Eggert
     [not found] ` <handler.8873.B.130816768116759.ack@debbugs.gnu.org>
2011-06-15 19:58   ` bug#8873: Acknowledgement (Integer overflow and signedness fixes (2011-06-15 batch)) Paul Eggert

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