lzx_compress.c: fix min value of LENGTH_CODEWORD_LIMIT

[wimlib] / src / lzx_compress.c

diff --git a/src/lzx_compress.c b/src/lzx_compress.c
index cc43fd6cc79ddf07eab9b067589a531e08b1c9a1..b6d603d620a84ecba60e9d900f8908d2d7812a19 100644 (file)
--- a/src/lzx_compress.c
+++ b/src/lzx_compress.c
@@ -410,8 +410,10 @@ struct lzx_compressor {
 
        /* 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  */
 
@@ -634,7 +636,7 @@ lzx_make_huffman_codes(struct lzx_compressor *c)
 
        STATIC_ASSERT(MAIN_CODEWORD_LIMIT >= 9 &&
                      MAIN_CODEWORD_LIMIT <= LZX_MAX_MAIN_CODEWORD_LEN);
-       STATIC_ASSERT(LENGTH_CODEWORD_LIMIT >= 9 &&
+       STATIC_ASSERT(LENGTH_CODEWORD_LIMIT >= 8 &&
                      LENGTH_CODEWORD_LIMIT <= LZX_MAX_LEN_CODEWORD_LEN);
        STATIC_ASSERT(ALIGNED_CODEWORD_LIMIT >= LZX_NUM_ALIGNED_OFFSET_BITS &&
                      ALIGNED_CODEWORD_LIMIT <= LZX_MAX_ALIGNED_CODEWORD_LEN);