diff --git a/sbe-benchmarks/src/main/cpp/SbeCarCodecBench.h b/sbe-benchmarks/src/main/cpp/SbeCarCodecBench.h
index c3b1d60804..ef5930a009 100644
--- a/sbe-benchmarks/src/main/cpp/SbeCarCodecBench.h
+++ b/sbe-benchmarks/src/main/cpp/SbeCarCodecBench.h
@@ -83,6 +83,8 @@ class SbeCarCodecBench : public CodecBench<SbeCarCodecBench>
     {
         car.wrapForDecode((char *)buffer, 0, Car::sbeBlockLength(), Car::sbeSchemaVersion(), bufferLength);
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
         int64_t tmpInt;
         const char *tmpChar;
         double tmpDouble;
@@ -132,6 +134,7 @@ class SbeCarCodecBench : public CodecBench<SbeCarCodecBench>
 
         tmpChar = car.manufacturer();
         tmpChar = car.model();
+#pragma GCC diagnostic pop
 
         return car.encodedLength();
     };
diff --git a/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/cpp/CppGenerator.java b/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/cpp/CppGenerator.java
index 28056dc82b..be9d15d492 100755
--- a/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/cpp/CppGenerator.java
+++ b/sbe-tool/src/main/java/uk/co/real_logic/sbe/generation/cpp/CppGenerator.java
@@ -294,22 +294,28 @@ private static void generateGroupClassHeader(
             dimensionHeaderLength, blockLength, formatClassName(groupName)));
 
         sb.append(
-            indent + "#if __cplusplus < 201103L\n" +
             indent + "    template<class Func> inline void forEach(Func& func)\n" +
             indent + "    {\n" +
             indent + "        while (hasNext())\n" +
             indent + "        {\n" +
             indent + "            next(); func(*this);\n" +
             indent + "        }\n" +
-            indent + "    }\n\n" +
-            indent + "#else\n" +
+            indent + "    }\n" +
+            indent + "#if __cplusplus >= 201103L\n" +
             indent + "    template<class Func> inline void forEach(Func&& func)\n" +
             indent + "    {\n" +
             indent + "        while (hasNext())\n" +
             indent + "        {\n" +
             indent + "            next(); func(*this);\n" +
             indent + "        }\n" +
-            indent + "    }\n\n" +
+            indent + "    }\n" +
+            indent + "    template<class Func> inline void forEach(Func const& func)\n" +
+            indent + "    {\n" +
+            indent + "        while (hasNext())\n" +
+            indent + "        {\n" +
+            indent + "            next(); func(*this);\n" +
+            indent + "        }\n" +
+            indent + "    }\n" +
             indent + "#endif\n\n");
     }
 
@@ -1285,17 +1291,21 @@ private static CharSequence generateFixedFlyweightCode(final String className, f
             "        m_offset(codec.m_offset),\n" +
             "        m_actingVersion(codec.m_actingVersion){}\n\n" +
             "#if __cplusplus >= 201103L\n" +
-            "    %1$s(%1$s&& codec) :\n" +
+            "    %1$s(%1$s&& codec) SBE_NOEXCEPT :\n" +
             "        m_buffer(codec.m_buffer),\n" +
             "        m_bufferLength(codec.m_bufferLength),\n" +
             "        m_offset(codec.m_offset),\n" +
-            "        m_actingVersion(codec.m_actingVersion){}\n\n" +
+            "        m_actingVersion(codec.m_actingVersion)\n" +
+            "        {\n" +
+            "            codec.reset(%1$s())\n" +
+            "        }\n\n" +
             "    %1$s& operator=(%1$s&& codec) SBE_NOEXCEPT\n" +
             "    {\n" +
-            "        m_buffer = codec.m_buffer;\n" +
-            "        m_bufferLength = codec.m_bufferLength;\n" +
-            "        m_offset = codec.m_offset;\n" +
-            "        m_actingVersion = codec.m_actingVersion;\n" +
+            "        if (this != &codec);\n" +
+            "        {\n" +
+            "            reset(codec);\n" +
+            "            codec.reset(%1$s());\n" +
+            "        }\n" +
             "        return *this;\n" +
             "    }\n\n" +
             "#endif\n\n" +
@@ -1350,22 +1360,27 @@ private static CharSequence generateConstructorsAndOperators(final String classN
             "    {\n" +
             "        reset(codec);\n" +
             "    }\n\n" +
-            "#if __cplusplus >= 201103L\n" +
-            "    %1$s(%1$s&& codec)\n" +
+            "    %1$s& operator=(const %1$s& codec) SBE_NOEXCEPT\n" +
             "    {\n" +
             "        reset(codec);\n" +
+            "        return *this;\n" +
             "    }\n\n" +
-            "    %1$s& operator=(%1$s&& codec)\n" +
+            "#if __cplusplus >= 201103L\n" +
+            "    %1$s(%1$s&& codec) SBE_NOEXCEPT : \n" +
             "    {\n" +
             "        reset(codec);\n" +
-            "        return *this;\n" +
+            "        codec.reset(%1$s());\n" +
             "    }\n\n" +
-            "#endif\n\n" +
-            "    %1$s& operator=(const %1$s& codec)\n" +
+            "    %1$s& operator =(%1$s&& codec) SBE_NOEXCEPT : \n" +
             "    {\n" +
-            "        reset(codec);\n" +
+            "        if (this != &codec)\n" +
+            "        {\n" +
+            "            reset(codec);\n" +
+            "            codec.reset(%1$s());\n" +
+            "        }\n" +
             "        return *this;\n" +
-            "    }\n\n",
+            "    }\n" +
+            "#endif\n\n",
             className);
     }