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[bison.git] / src / nullable.c

diff --git a/src/nullable.c b/src/nullable.c
index ef65ef46af481826b19ab90c4614b1c11551b562..5bde4047667462506305d50fe076695f9607bf44 100644 (file)
--- a/src/nullable.c
+++ b/src/nullable.c
@@ -1,7 +1,7 @@
 /* Calculate which nonterminals can expand into the null string for Bison.
 
-   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2004, 2005 Free
-   Software Foundation, Inc.
+   Copyright (C) 1984, 1989, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Free Software Foundation, Inc.
 
    This file is part of Bison, the GNU Compiler Compiler.
 
@@ -104,8 +104,8 @@ nullable_compute (void)
        else
          {
            /* This rule has an empty RHS. */
-           if (item_number_as_rule_number (rules_ruleno->rhs[0]) != ruleno)
-             abort ();
+           aver (item_number_as_rule_number (rules_ruleno->rhs[0])
+                 == ruleno);
            if (rules_ruleno->useful
                && ! nullable[rules_ruleno->lhs->number - ntokens])
              {