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Paul Eggert authored
(bidi_cache_size, bidi_cache_idx, bidi_cache_last_idx) (bidi_cache_start, bidi_cache_fetch_state, bidi_cache_search) (bidi_cache_find_level_change, bidi_cache_ensure_space) (bidi_cache_iterator_state, bidi_cache_find, bidi_cache_start_stack) (bidi_find_other_level_edge): Use ptrdiff_t instead of EMACS_INT where either will do. This works better on 32-bit hosts configured --with-wide-int. (bidi_cache_ensure_space): Check for size-calculation overflow. Use % rather than repeated addition, for better worst-case speed. Don't set bidi_cache_size until after xrealloc returns, because it might not return. (bidi_dump_cached_states): Use ptrdiff_t, not int, to avoid overflow.
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