coverity#1371227 Missing move assignment operator

Change-Id: I2de6b5e2910ff570c08e662769d5e6ee188825a7
Reviewed-on: https://gerrit.libreoffice.org/32843Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

include/rtl/byteseq.h

@@ -189,6 +189,9 @@ public:
         @param rSeq another byte sequence
     */
     inline ByteSequence( const ByteSequence & rSeq );
+#if defined LIBO_INTERNAL_ONLY
+    inline ByteSequence( ByteSequence && rSeq );
+#endif
     /** Copy constructor Creates a copy from the C-Handle.
 
         @param pSequence another byte sequence handle
@@ -232,6 +235,9 @@ public:
         @return this sequence
     */
     inline ByteSequence & SAL_CALL operator = ( const ByteSequence & rSeq );
+#if defined LIBO_INTERNAL_ONLY
+    inline ByteSequence & SAL_CALL operator = ( ByteSequence && rSeq );
+#endif
 
     /** Gets the length of sequence.
 

include/rtl/byteseq.hxx

@@ -40,6 +40,14 @@ inline ByteSequence::ByteSequence( const ByteSequence & rSeq )
     ::rtl_byte_sequence_assign( &_pSequence, rSeq._pSequence );
 }
 
+#if defined LIBO_INTERNAL_ONLY
+inline ByteSequence::ByteSequence( ByteSequence && rSeq )
+    : _pSequence(rSeq._pSequence)
+{
+    rSeq._pSequence = nullptr;
+}
+#endif
+
 inline ByteSequence::ByteSequence( sal_Sequence *pSequence)
     : _pSequence( pSequence )
 {
@@ -86,6 +94,16 @@ inline ByteSequence & ByteSequence::operator = ( const ByteSequence & rSeq )
     return *this;
 }
 
+#if defined LIBO_INTERNAL_ONLY
+inline ByteSequence & ByteSequence::operator = ( ByteSequence && rSeq )
+{
+    ::rtl_byte_sequence_release(_pSequence);
+    _pSequence = rSeq._pSequence;
+    rSeq._pSequence = nullptr;
+    return *this;
+}
+#endif
+
 inline bool ByteSequence::operator == ( const ByteSequence & rSeq ) const
 {
     return ::rtl_byte_sequence_equals( _pSequence, rSeq._pSequence );