A block could have all length 2 matches (highly unlikely).
/* The matches and literals that the parser has chosen for the current
* block. The required length of this array is limited by the maximum
/* The matches and literals that the parser has chosen for the current
* block. The required length of this array is limited by the maximum
- * number of matches that can ever be chosen for a single block. */
- struct lzx_sequence chosen_sequences[DIV_ROUND_UP(LZX_DIV_BLOCK_SIZE, LZX_MIN_MATCH_LEN)];
+ * number of matches that can ever be chosen for a single block, plus
+ * one for the special entry at the end. */
+ struct lzx_sequence chosen_sequences[
+ DIV_ROUND_UP(LZX_DIV_BLOCK_SIZE, LZX_MIN_MATCH_LEN) + 1];
/* Tables for mapping adjusted offsets to offset slots */
/* Tables for mapping adjusted offsets to offset slots */