1 files changed, 124 insertions, 0 deletions
diff --git a/tools/mhmake/src/refptr.h b/tools/mhmake/src/refptr.h
new file mode 100644
index 000000000..7223090f9
--- /dev/null
+++ b/tools/mhmake/src/refptr.h
@@ -0,0 +1,124 @@
+/*  This file is part of mhmake.
+ *
+ *  Copyright (C) 2001-2010 marha@sourceforge.net
+ *
+ *  Mhmake is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Mhmake is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Mhmake.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/* $Rev$ */
+
+#ifndef __REFPTR_H__
+#define __REFPTR_H__
+
+#ifdef _DEBUG
+#define PRINTF(arg) if (g_PrintLexYacc) printf arg
+#else
+#define PRINTF(arg)
+#endif
+
+template <class T> class iterstack: public stack<T>
+{
+  public:
+    typedef typename deque<T>::iterator iterator;
+    typedef typename deque<T>::reverse_iterator reverse_iterator;
+
+    iterator begin()
+    {
+      return stack<T>::c.begin();
+    }
+    iterator end()
+    {
+      return stack<T>::c.end();
+    }
+    reverse_iterator rbegin()
+    {
+      return stack<T>::c.rbegin();
+    }
+    reverse_iterator rend()
+    {
+      return stack<T>::c.rend();
+    }
+};
+
+struct refbase
+{
+  int m_Count;
+  refbase()
+  {
+    m_Count=1;
+  }
+};
+
+// Template class T needs to be derived from refbase;
+template <class T> class refptr
+{
+  T *m_RefPtr;
+public:
+  refptr()
+  {
+    m_RefPtr=NULL;
+  }
+  refptr(T *Ptr) {
+    m_RefPtr=Ptr;
+  }
+  refptr(const refptr<T> &RefPtr)
+  {
+    m_RefPtr=RefPtr.m_RefPtr;
+    if (m_RefPtr)
+      m_RefPtr->m_Count++;
+  }
+  ~refptr()
+  {
+    if (m_RefPtr && !--m_RefPtr->m_Count)
+    {
+      delete m_RefPtr;
+    }
+  }
+  refptr<T> &operator=(const refptr<T>& Src)
+  {
+    if (Src.m_RefPtr!=m_RefPtr)
+    {
+      this->~refptr();
+      new (this) refptr<T>(Src);
+    }
+    return *this;
+  }
+
+  refptr<T> &operator=(T *pPtr) // Assumes that T has reference count 1 and has no other users
+  {
+    #if defined(_DEBUG) && defined(_MSC_VER)
+    if (pPtr && pPtr->m_Count!=1)
+      DebugBreak();
+    #endif
+    this->~refptr();
+    m_RefPtr=pPtr;
+    return *this;
+  }
+
+  T & operator*() const
+  {
+    return *m_RefPtr;
+  }
+  T * operator->() const
+  {
+    return m_RefPtr;
+  }
+  operator T*() const
+  {
+    return m_RefPtr;
+  }
+};
+
+#endif
+