fix bug of uninitialized regex_t value on error

diff --git a/src/regcomp.c b/src/regcomp.c
index 7310569fe29e121fbabe15d5024f34661d0ff934..c21e7ce441caeaebe32a6ad3ce4352da1beef479 100644 (file)
--- a/src/regcomp.c
+++ b/src/regcomp.c
@@ -5416,6 +5416,8 @@ onig_reg_init(regex_t* reg, OnigOptionType option,
              OnigCaseFoldType case_fold_flag,
              OnigEncoding enc, OnigSyntaxType* syntax)
 {
+  xmemset(reg, 0, sizeof(*reg));
+
   if (onig_inited == 0)
     return ONIGERR_LIBRARY_IS_NOT_INITIALIZED;