From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 12 Aug 2002 15:04:54 +0000 (+0000)
Subject: Fix comment about `$$ = $1': it can copy garbage.
X-Git-Tag: BISON-1_49b~4
X-Git-Url: https://git.saurik.com/bison.git/commitdiff_plain/accea6db6873a635e119c81c14f738678b1b5ee6?ds=inline

Fix comment about `$$ = $1': it can copy garbage.
---

diff --git a/data/yacc.c b/data/yacc.c
index 5b5da3c5..b57db164 100644
--- a/data/yacc.c
+++ b/data/yacc.c
@@ -1044,8 +1044,8 @@ yyreduce:
   /* If YYLEN is nonzero, implement the default value of the action:
      `$$ = $1'.
 
-     Otherwise, the following line sets YYVAL to the semantic value of
-     the lookahead token.  This behavior is undocumented and Bison
+     Otherwise, the following line sets YYVAL to garbage.
+     This behavior is undocumented and Bison
      users should not rely upon it.  Assigning to YYVAL
      unconditionally makes the parser a bit smaller, and it avoids a
      GCC warning that YYVAL may be used uninitialized.  */