From 2fd1be7b1de08a4020e376a8416703715cd4f091 Mon Sep 17 00:00:00 2001
From: David Malcolm <dmalcolm@redhat.com>
Date: Fri, 26 Jul 2019 12:03:45 -0400
Subject: [PATCH 06/33] FIXME: const-correctness for fibonacci_heap.h

---
 gcc/fibonacci_heap.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gcc/fibonacci_heap.h b/gcc/fibonacci_heap.h
index 6e0a216..16159a3 100644
--- a/gcc/fibonacci_heap.h
+++ b/gcc/fibonacci_heap.h
@@ -162,19 +162,19 @@ public:
   fibonacci_node_t *insert (K key, V *data);
 
   /* Return true if no entry is present.  */
-  bool empty ()
+  bool empty () const
   {
     return m_nodes == 0;
   }
 
   /* Return the number of nodes.  */
-  size_t nodes ()
+  size_t nodes () const
   {
     return m_nodes;
   }
 
   /* Return minimal key presented in the heap.  */
-  K min_key ()
+  K min_key () const
   {
     if (m_min == NULL)
       gcc_unreachable ();
-- 
1.8.5.3