From 1c2550a2ae826c422cf6d34f1c5c3e687474929d Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Sun, 30 Mar 2014 00:49:23 +0100
Subject: boost::shared_ptr -> std::shared_ptr

---
 src/boost/weak_ptr.hpp | 193 -------------------------------------------------
 1 file changed, 193 deletions(-)
 delete mode 100644 src/boost/weak_ptr.hpp

(limited to 'src/boost/weak_ptr.hpp')

diff --git a/src/boost/weak_ptr.hpp b/src/boost/weak_ptr.hpp
deleted file mode 100644
index 3d3b3eb79df1..000000000000
--- a/src/boost/weak_ptr.hpp
+++ /dev/null
@@ -1,193 +0,0 @@
-#ifndef BOOST_WEAK_PTR_HPP_INCLUDED
-#define BOOST_WEAK_PTR_HPP_INCLUDED
-
-//
-//  weak_ptr.hpp
-//
-//  Copyright (c) 2001, 2002, 2003 Peter Dimov
-//
-//  Permission to copy, use, modify, sell and distribute this software
-//  is granted provided this copyright notice appears in all copies.
-//  This software is provided "as is" without express or implied
-//  warranty, and with no claim as to its suitability for any purpose.
-//
-//  See http://www.boost.org/libs/smart_ptr/weak_ptr.htm for documentation.
-//
-
-#include <boost/shared_ptr.hpp>
-
-#ifdef BOOST_MSVC  // moved here to work around VC++ compiler crash
-# pragma warning(push)
-# pragma warning(disable:4284) // odd return type for operator->
-#endif
-
-namespace boost
-{
-
-template<class T> class weak_ptr
-{
-private:
-
-    // Borland 5.5.1 specific workarounds
-    typedef weak_ptr<T> this_type;
-
-public:
-
-    typedef T element_type;
-
-    weak_ptr(): px(0), pn() // never throws in 1.30+
-    {
-    }
-
-//  generated copy constructor, assignment, destructor are fine
-
-
-//
-//  The "obvious" converting constructor implementation:
-//
-//  template<class Y>
-//  weak_ptr(weak_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
-//  {
-//  }
-//
-//  has a serious problem.
-//
-//  r.px may already have been invalidated. The px(r.px)
-//  conversion may require access to *r.px (virtual inheritance).
-//
-//  It is not possible to avoid spurious access violations since
-//  in multithreaded programs r.px may be invalidated at any point.
-//
-
-    template<class Y>
-    weak_ptr(weak_ptr<Y> const & r): pn(r.pn) // never throws
-    {
-        px = r.lock().get();
-    }
-
-    template<class Y>
-    weak_ptr(shared_ptr<Y> const & r): px(r.px), pn(r.pn) // never throws
-    {
-    }
-
-#if !defined(BOOST_MSVC) || (BOOST_MSVC > 1200)
-
-    template<class Y>
-    weak_ptr & operator=(weak_ptr<Y> const & r) // never throws
-    {
-        px = r.lock().get();
-        pn = r.pn;
-        return *this;
-    }
-
-    template<class Y>
-    weak_ptr & operator=(shared_ptr<Y> const & r) // never throws
-    {
-        px = r.px;
-        pn = r.pn;
-        return *this;
-    }
-
-#endif
-
-    shared_ptr<T> lock() const // never throws
-    {
-#if defined(BOOST_HAS_THREADS)
-
-        // optimization: avoid throw overhead
-        if(expired())
-        {
-            return shared_ptr<element_type>();
-        }
-
-        try
-        {
-            return shared_ptr<element_type>(*this);
-        }
-        catch(bad_weak_ptr const &)
-        {
-            // Q: how can we get here?
-            // A: another thread may have invalidated r after the use_count test above.
-            return shared_ptr<element_type>();
-        }
-
-#else
-
-        // optimization: avoid try/catch overhead when single threaded
-        return expired()? shared_ptr<element_type>(): shared_ptr<element_type>(*this);
-
-#endif
-    }
-
-    long use_count() const // never throws
-    {
-        return pn.use_count();
-    }
-
-    bool expired() const // never throws
-    {
-        return pn.use_count() == 0;
-    }
-
-    void reset() // never throws in 1.30+
-    {
-        this_type().swap(*this);
-    }
-
-    void swap(this_type & other) // never throws
-    {
-        std::swap(px, other.px);
-        pn.swap(other.pn);
-    }
-
-    void _internal_assign(T * px2, detail::shared_count const & pn2)
-    {
-        px = px2;
-        pn = pn2;
-    }
-
-    template<class Y> bool _internal_less(weak_ptr<Y> const & rhs) const
-    {
-        return pn < rhs.pn;
-    }
-
-// Tasteless as this may seem, making all members public allows member templates
-// to work in the absence of member template friends. (Matthew Langston)
-
-#if 0
-
-private:
-
-    template<class Y> friend class weak_ptr;
-    template<class Y> friend class shared_ptr;
-
-#endif
-
-    T * px;                     // contained pointer
-    detail::weak_count pn;      // reference counter
-
-};  // weak_ptr
-
-template<class T, class U> inline bool operator<(weak_ptr<T> const & a, weak_ptr<U> const & b)
-{
-    return a._internal_less(b);
-}
-
-template<class T> void swap(weak_ptr<T> & a, weak_ptr<T> & b)
-{
-    a.swap(b);
-}
-
-// deprecated, provided for backward compatibility
-template<class T> shared_ptr<T> make_shared(weak_ptr<T> const & r)
-{
-    return r.lock();
-}
-
-} // namespace boost
-
-#ifdef BOOST_MSVC
-# pragma warning(pop)
-#endif    
-
-#endif  // #ifndef BOOST_WEAK_PTR_HPP_INCLUDED
-- 
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