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deps/include/nowide/scoped_ptr.hpp

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+#ifndef NOWIDE_SCOPED_PTR_HPP
+#define NOWIDE_SCOPED_PTR_HPP
+
+//  (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
+//  Copyright (c) 2001, 2002 Peter Dimov, 
+//  Copyright (C) 2012 Artyom Beilis
+//
+//  Distributed under the Boost Software License, Version 1.0. (See
+//  accompanying file LICENSE_1_0.txt or copy at
+//  http://www.boost.org/LICENSE_1_0.txt)
+//
+//  http://www.boost.org/libs/smart_ptr/scoped_ptr.htm
+//
+
+#include <assert.h>
+
+namespace nowide
+{
+
+//  scoped_ptr mimics a built-in pointer except that it guarantees deletion
+//  of the object pointed to, either on destruction of the scoped_ptr or via
+//  an explicit reset(). scoped_ptr is a simple solution for simple needs;
+//  use shared_ptr or std::auto_ptr if your needs are more complex.
+
+template<class T> class scoped_ptr // noncopyable
+{
+private:
+
+    T * px;
+
+    scoped_ptr(scoped_ptr const &);
+    scoped_ptr & operator=(scoped_ptr const &);
+
+    typedef scoped_ptr<T> this_type;
+
+    void operator==( scoped_ptr const& ) const;
+    void operator!=( scoped_ptr const& ) const;
+
+public:
+
+    typedef T element_type;
+
+    explicit scoped_ptr( T * p = 0 ): px( p ) // never throws
+    {
+    }
+
+    ~scoped_ptr() // never throws
+    {
+        delete px;
+    }
+
+    void reset(T * p = 0) // never throws
+    {
+        assert( p == 0 || p != px ); // catch self-reset errors
+        this_type(p).swap(*this);
+    }
+
+    T & operator*() const // never throws
+    {
+        assert( px != 0 );
+        return *px;
+    }
+
+    T * operator->() const // never throws
+    {
+        assert( px != 0 );
+        return px;
+    }
+
+    T * get() const // never throws
+    {
+        return px;
+    }
+
+    operator bool() const
+    {
+        return px!=0;
+    }
+
+    void swap(scoped_ptr & b) // never throws
+    {
+        T * tmp = b.px;
+        b.px = px;
+        px = tmp;
+    }
+};
+
+
+} // namespace nowide
+
+#endif
+// vim: tabstop=4 expandtab shiftwidth=4 softtabstop=4
+