Use ptrdiff_t for hash table indexes.

* category.c (hash_get_category_set):
* ccl.c (ccl_driver):
* charset.h (struct charset.hash_index, CHECK_CHARSET_GET_ID):
* coding.c (coding_system_charset_list, detect_coding_system):
* coding.h (struct coding_system.id):
* composite.c (get_composition_id, gstring_lookup_cache):
* fns.c (hash_lookup, hash_put, Fgethash, Fputhash):
* image.c (xpm_get_color_table_h):
* lisp.h (hash_lookup, hash_put):
* minibuf.c (Ftest_completion):
Use ptrdiff_t for hash table indexes, not int (which is too
narrow, on 64-bit hosts) or EMACS_INT (which is too wide, on
32-bit --with-wide-int hosts).

1 files changed, 15 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 4a9e03d5da0..cf75596f422 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,20 @@
 2011-07-19  Paul Eggert  <eggert@cs.ucla.edu>
 
+        Use ptrdiff_t for hash table indexes.
+        * category.c (hash_get_category_set):
+        * ccl.c (ccl_driver):
+        * charset.h (struct charset.hash_index, CHECK_CHARSET_GET_ID):
+        * coding.c (coding_system_charset_list, detect_coding_system):
+        * coding.h (struct coding_system.id):
+        * composite.c (get_composition_id, gstring_lookup_cache):
+        * fns.c (hash_lookup, hash_put, Fgethash, Fputhash):
+        * image.c (xpm_get_color_table_h):
+        * lisp.h (hash_lookup, hash_put):
+        * minibuf.c (Ftest_completion):
+        Use ptrdiff_t for hash table indexes, not int (which is too
+        narrow, on 64-bit hosts) or EMACS_INT (which is too wide, on
+        32-bit --with-wide-int hosts).
+
         * charset.c (Fdefine_charset_internal): Check for integer overflow.
         Add a FIXME comment about memory leaks.
         (syms_of_charset): Don't assume xmalloc returns.