From edae1fc950b8fe2aab31d57afa8d3aa134ac3517 Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Mon, 26 Jan 1987 16:14:39 +0000
Subject: [PATCH] Added a check that a tokenset in a stackpattern contains
 tokens that all have the same size.

---
 util/ncgg/cgg.y | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/util/ncgg/cgg.y b/util/ncgg/cgg.y
index 1edca6219..8c1974e94 100644
--- a/util/ncgg/cgg.y
+++ b/util/ncgg/cgg.y
@@ -20,6 +20,7 @@ int startline;
 int npatterns;
 int att_type;
 int patindex[MAXPATTERNS];
+extern set_t l_sets[];
 
 int emhere=0;	/* lexical analyzer flag */
 int optexact=0;	/* Inside "with exact" rule */
@@ -742,6 +743,9 @@ setlist
 		{ NEXT(tokpatlen,TOKPATMAX,"Stack pattern");
 		  tokpatset[tokpatlen-1] = $2;
 		  checkunstacking($2);
+		  if (l_sets[$2].set_size == 0) {
+			error("Tokenset is empty or has elements with different sizes");
+		  }
 		}
 	;
 kills