* keyboard.h (num_input_events): Now uintmax_t.

This is (very slightly) less likely to mess up due to wraparound.
All uses changed.

src/ChangeLog

 2011-07-07  Paul Eggert  <eggert@cs.ucla.edu>
 
+	* keyboard.h (num_input_events): Now uintmax_t.
+	This is (very slightly) less likely to mess up due to wraparound.
+	All uses changed.
+
 	* buffer.c: Integer signedness fixes.
 	(alloc_buffer_text, enlarge_buffer_text):
 	Use ptrdiff_t rather than size_t when either will do, as we prefer

src/callint.c

@@ -339,7 +339,7 @@ invoke it.  If KEYS is omitted or nil, the return value of
     {
       Lisp_Object input;
       Lisp_Object funval = Findirect_function (function, Qt);
-      size_t events = num_input_events;
+      uintmax_t events = num_input_events;
       input = specs;
       /* Compute the arg values using the user's expression.  */
       GCPRO2 (input, filter_specs);

src/keyboard.c

@@ -210,8 +210,8 @@ Lisp_Object unread_switch_frame;
 /* Last size recorded for a current buffer which is not a minibuffer.  */
 static EMACS_INT last_non_minibuf_size;
 
-/* Total number of times read_char has returned, modulo SIZE_MAX + 1.  */
-size_t num_input_events;
+/* Total number of times read_char has returned, modulo UINTMAX_MAX + 1.  */
+uintmax_t num_input_events;
 
 /* Value of num_nonmacro_input_events as of last auto save.  */
 

src/keyboard.h

@@ -191,8 +191,8 @@ extern KBOARD *current_kboard;
 /* A list of all kboard objects, linked through next_kboard.  */
 extern KBOARD *all_kboards;
 
-/* Total number of times read_char has returned, modulo SIZE_MAX + 1.  */
-extern size_t num_input_events;
+/* Total number of times read_char has returned, modulo UINTMAX_MAX + 1.  */
+extern uintmax_t num_input_events;
 
 /* Nonzero means polling for input is temporarily suppressed.  */
 extern int poll_suppress_count;