From 0776a0b8770d302df472b5cbdfe4132867c3e186 Mon Sep 17 00:00:00 2001
From: khizmax <libcds.dev@gmail.com>
Date: Tue, 21 Oct 2014 23:55:58 +0400
Subject: [PATCH] remove base class and gc::HRC specialization for
 intrusive::single_link::node remove MSVC warning C4522 for
 details::marked_ptr

---
 cds/details/marked_ptr.h                   |  5 +-
 cds/intrusive/details/single_link_struct.h | 63 +---------------------
 2 files changed, 5 insertions(+), 63 deletions(-)

diff --git a/cds/details/marked_ptr.h b/cds/details/marked_ptr.h
index ade4d3f8..39a84e90 100644
--- a/cds/details/marked_ptr.h
+++ b/cds/details/marked_ptr.h
@@ -338,13 +338,16 @@ CDS_CXX11_ATOMIC_BEGIN_NAMESPACE
 
         atomic(const atomic&) = delete;
         atomic& operator=(const atomic&) = delete;
-        atomic& operator=(const atomic&) volatile = delete;
 
+#if !(CDS_COMPILER == CDS_COMPILER_MSVC && CDS_COMPILER_VERSION <= CDS_COMPILER_MSVC12)
+        // MSVC12: warning C4522: multiple assignment operators specified
+        atomic& operator=(const atomic&) volatile = delete;
         marked_ptr operator=(marked_ptr val) volatile CDS_NOEXCEPT
         {
             store( val );
             return val;
         }
+#endif
         marked_ptr operator=(marked_ptr val) CDS_NOEXCEPT
         {
             store( val );
diff --git a/cds/intrusive/details/single_link_struct.h b/cds/intrusive/details/single_link_struct.h
index 8796e35c..2b02e797 100644
--- a/cds/intrusive/details/single_link_struct.h
+++ b/cds/intrusive/details/single_link_struct.h
@@ -6,7 +6,6 @@
 #include <cds/intrusive/details/base.h>
 #include <cds/gc/default_gc.h>
 #include <cds/cxx11_atomic.h>
-#include <cds/gc/hrc.h>
 
 namespace cds { namespace intrusive {
 
@@ -22,7 +21,7 @@ namespace cds { namespace intrusive {
             - Tag - a tag used to distinguish between different implementation
         */
         template <class GC, typename Tag = opt::none>
-        struct node: public GC::container_node
+        struct node
         {
             typedef GC              gc  ;   ///< Garbage collector
             typedef Tag             tag ;   ///< tag
@@ -42,53 +41,6 @@ namespace cds { namespace intrusive {
             {}
         };
 
-        //@cond
-        // Specialization for HRC GC
-        template <typename Tag>
-        struct node< gc::HRC, Tag>: public gc::HRC::container_node
-        {
-            typedef gc::HRC     gc  ;   ///< Garbage collector
-            typedef Tag         tag ;   ///< tag
-
-            typedef gc::atomic_ref<node>    atomic_node_ptr    ;    ///< atomic pointer
-            atomic_node_ptr m_pNext ; ///< pointer to the next node in the container
-
-            node()
-                : m_pNext( nullptr )
-            {}
-
-        protected:
-            virtual void cleanUp( cds::gc::hrc::ThreadGC * pGC )
-            {
-                assert( pGC != nullptr );
-                typename gc::GuardArray<2> aGuards( *pGC );
-
-                while ( true ) {
-                    node * pNext = aGuards.protect( 0, m_pNext );
-                    if ( pNext && pNext->m_bDeleted.load(atomics::memory_order_acquire) ) {
-                        node * p = aGuards.protect( 1, pNext->m_pNext );
-                        m_pNext.compare_exchange_strong( pNext, p, atomics::memory_order_acquire, atomics::memory_order_relaxed );
-                        continue;
-                    }
-                    else {
-                        break;
-                    }
-                }
-            }
-
-            virtual void terminate( cds::gc::hrc::ThreadGC * pGC, bool bConcurrent )
-            {
-                if ( bConcurrent ) {
-                    node * pNext = m_pNext.load(atomics::memory_order_relaxed);
-                    do {} while ( !m_pNext.compare_exchange_weak( pNext, nullptr, atomics::memory_order_release, atomics::memory_order_relaxed ) );
-                }
-                else {
-                    m_pNext.store( nullptr, atomics::memory_order_relaxed );
-                }
-            }
-        };
-        //@endcond
-
         //@cond
         struct default_hook {
             typedef cds::gc::default_gc gc;
@@ -108,7 +60,6 @@ namespace cds { namespace intrusive {
         };
         //@endcond
 
-
         /// Base hook
         /**
             \p Options are:
@@ -174,18 +125,6 @@ namespace cds { namespace intrusive {
         template <class GC, typename Node, opt::link_check_type LinkType >
         struct link_checker_selector;
 
-        template <typename Node>
-        struct link_checker_selector< gc::HRC, Node, opt::never_check_link >
-        {
-            typedef link_checker<Node>  type;
-        };
-
-        template <typename Node>
-        struct link_checker_selector< gc::HRC, Node, opt::debug_check_link >
-        {
-            typedef link_checker<Node>  type;
-        };
-
         template <typename GC, typename Node>
         struct link_checker_selector< GC, Node, opt::never_check_link >
         {
-- 
2.34.1