FIXED: Fix signedness bug in Aho-Corasick

diff --git a/Sources/libMultiMarkdown/aho-corasick.c b/Sources/libMultiMarkdown/aho-corasick.c
index 60c057ee295bf72c59502ca575f6230207084916..9633e76d7e3b7edf0ad70f2e989bf8c479c6a726 100644 (file)
--- a/Sources/libMultiMarkdown/aho-corasick.c
+++ b/Sources/libMultiMarkdown/aho-corasick.c
@@ -195,13 +195,13 @@ size_t trie_node_search(trie * a, size_t s, const char * query) {
                return s;
        }
 
-       if (a->node[s].child[(int)query[0]] == 0) {
+       if (a->node[s].child[(unsigned char)query[0]] == 0) {
                // Failed to match
                return -1;
        }
 
        // Partial match, keep going
-       return trie_node_search(a, a->node[s].child[(int)query[0]], query + 1);
+       return trie_node_search(a, a->node[s].child[(unsigned char)query[0]], query + 1);
 }