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Diffstat (limited to 'c/enc/hash_longest_match_quickly_inc.h')
-rw-r--r--c/enc/hash_longest_match_quickly_inc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/c/enc/hash_longest_match_quickly_inc.h b/c/enc/hash_longest_match_quickly_inc.h
index 1f36022..57ed586 100644
--- a/c/enc/hash_longest_match_quickly_inc.h
+++ b/c/enc/hash_longest_match_quickly_inc.h
@@ -164,6 +164,9 @@ static BROTLI_INLINE void FN(FindLongestMatch)(
size_t best_len = best_len_in;
size_t cached_backward = (size_t)distance_cache[0];
size_t prev_ix = cur_ix - cached_backward;
+
+ BROTLI_DCHECK(cur_ix_masked + max_length <= ring_buffer_mask);
+
out->len_code_delta = 0;
if (prev_ix < cur_ix) {
prev_ix &= (uint32_t)ring_buffer_mask;