From 129b81e09375dbee4a12c468ef75f18243e8a0a4 Mon Sep 17 00:00:00 2001
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Tue, 31 Mar 2015 18:38:59 +0200
Subject: generator: add methods to generate closed item sets

---
 src/item.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/item.hpp')

diff --git a/src/item.hpp b/src/item.hpp
index faebf79..ae282a9 100644
--- a/src/item.hpp
+++ b/src/item.hpp
@@ -69,7 +69,7 @@ struct item_t : public std::tuple<std::string, std::vector<symbol_t>, unsigned>
 		get_point()++;
 	}
 
-	symbol_t get_next_symbol() const {
+	const symbol_t & get_next_symbol() const {
 		return get_rhs()[get_point()];
 	}
 };
-- 
cgit v1.2.3