From: Nathan Binkert <nate@binkert.org>
Date: Fri, 2 Apr 2010 18:20:32 +0000 (-0700)
Subject: refcnt: no default copy contructor or copy operator
X-Git-Tag: stable_2012_02_02~1432
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=01dffaa32fb68981e7d8ff1a0beb96de7b892546;p=gem5.git

refcnt: no default copy contructor or copy operator
We shouldn't allow these because the default versions will copy
the reference count which is definitely not what we want.
---

diff --git a/src/base/refcnt.hh b/src/base/refcnt.hh
index d1663ad72..64224ca7f 100644
--- a/src/base/refcnt.hh
+++ b/src/base/refcnt.hh
@@ -37,7 +37,11 @@ class RefCounted
     int count;
 
   private:
+    // Don't allow a default copy constructor or copy operator on
+    // these objects because the default operation will copy the
+    // reference count as well and we certainly don't want that.
     RefCounted(const RefCounted &);
+    RefCounted &operator=(const RefCounted &);
 
   public:
     RefCounted() : count(0) {}