Use ptrdiff_t for hash table indexes.

[bpt/emacs.git] / src / ChangeLog

diff --git a/src/ChangeLog b/src/ChangeLog
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@@ -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.