lalr1.cc: fix compiler warnings

[bison.git] / data / stack.hh

diff --git a/data/stack.hh b/data/stack.hh
index ab1049c184d4f111513e6bb33ecb00f8b888bab9..8f6286078885aeb5f2da652c61fc07a6d74be51e 100644 (file)
--- a/data/stack.hh
+++ b/data/stack.hh
@@ -77,6 +77,12 @@ b4_copyright([Stack handling for Bison parsers in C++],
         seq_.pop_front ();
     }
 
+    void
+    clear ()
+    {
+      seq_.clear ();
+    }
+
     inline
     unsigned int
     height () const
@@ -88,6 +94,8 @@ b4_copyright([Stack handling for Bison parsers in C++],
     inline const_iterator end () const { return seq_.rend (); }
 
   private:
+    stack (const stack&);
+    stack& operator= (const stack&);
     S seq_;
   };