From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Sep 2009 23:15:29 +0000 (-0700)
Subject: Add clear method to subr::sharing_stack.
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7912c5385e224e5c993d08584eb5c22d5f9a341b;p=thirdparty%2Felfutils.git

Add clear method to subr::sharing_stack.
---

diff --git a/libdw/ChangeLog b/libdw/ChangeLog
index e6546ee1a..498e6ef32 100644
--- a/libdw/ChangeLog
+++ b/libdw/ChangeLog
@@ -1,5 +1,7 @@
 2009-09-30  Roland McGrath  <roland@redhat.com>
 
+	* c++/subr.hh (subr::sharing_stack::clear): New method.
+
 	* c++/values.cc (dwarf::attr_value::what_space):
 	Grok exprloc, flag_present, sec_offset.
 
diff --git a/libdw/c++/subr.hh b/libdw/c++/subr.hh
index 921a79727..79e1c7559 100644
--- a/libdw/c++/subr.hh
+++ b/libdw/c++/subr.hh
@@ -1184,15 +1184,19 @@ namespace elfutils
 	_m_size = n;
       }
 
-      inline void fini ()
+    public:
+      inline void clear ()
       {
 	if (_m_head == NULL)
 	  assert (_m_size == 0);
 	else
-	  _m_head->release ();
+	  {
+	    _m_head->release ();
+	    _m_head = NULL;
+	    _m_size = 0;
+	  }
       }
 
-    public:
       inline bool empty () const
       {
 	return _m_head == NULL;
@@ -1254,14 +1258,14 @@ namespace elfutils
 
       inline ~sharing_stack ()
       {
-	fini ();
+	clear ();
       }
 
       inline sharing_stack &operator= (const sharing_stack &other)
       {
 	if (&other != this)
 	  {
-	    fini ();
+	    clear ();
 	    init (other._m_head, other._m_size);
 	  }
 	return *this;