duerst	2018-11-28 06:23:11 +0900 (Wed, 28 Nov 2018)

  New Revision: 66045

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=66045

  Log:
    correctly handle return value from create_sequence_node()
    
    In function node_extended_grapheme_cluster(), store and test
    return value from create_sequence_node(). Never forget this!

  Modified files:
    trunk/regparse.c
Index: regparse.c
===================================================================
--- regparse.c	(revision 66044)
+++ regparse.c	(revision 66045)
@@ -5912,7 +5912,8 @@ node_extended_grapheme_cluster(Node** np https://github.com/ruby/ruby/blob/trunk/regparse.c#L5912
       if (r != 0) goto err;
 
       seq[3] = NULL_NODE;
-      create_sequence_node(&list2, seq);
+      r = create_sequence_node(&list2, seq);
+      if (r != 0) goto err;
     }
 
     tmp = onig_node_new_alt(list2, alt);

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