* bidi.c: Integer signedness and overflow fixes.

(bidi_cache_idx, bidi_cache_last_idx, bidi_cache_fetch_state)
(bidi_cache_search, bidi_cache_find_level_change)
(bidi_cache_iterator_state, bidi_cache_find, bidi_find_other_level_edge)
(bidi_dump_cached_states):
Don't arbitrarily limit cache indexes to int; use ptrdiff_t instead.
(bidi_cache_size): Use ptrdiff_t rather than size_t, as we prefer
signed integers.
(elsz): Make it a (signed) constant.
(bidi_cache_iterator_state): Check for size-calculation overflow.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index f2c318fa84a..a6cafedb36c 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,16 @@
 2011-07-07  Paul Eggert  <eggert@cs.ucla.edu>
 
+        * bidi.c: Integer signedness and overflow fixes.
+        (bidi_cache_idx, bidi_cache_last_idx, bidi_cache_fetch_state)
+        (bidi_cache_search, bidi_cache_find_level_change)
+        (bidi_cache_iterator_state, bidi_cache_find, bidi_find_other_level_edge)
+        (bidi_dump_cached_states):
+        Don't arbitrarily limit cache indexes to int; use ptrdiff_t instead.
+        (bidi_cache_size): Use ptrdiff_t rather than size_t, as we prefer
+        signed integers.
+        (elsz): Make it a (signed) constant.
+        (bidi_cache_iterator_state): Check for size-calculation overflow.
+
         * alloc.c: Integer signedness and overflow fixes.
         Do not impose an arbitrary 32-bit limit on malloc sizes when debugging.
         (__malloc_size_t): Default to size_t, not to int.