Tell C++11 compilers to generate default copy operator

Recent compilers complain about using memcpy on a class with non-trivial
copy-assignment operator. However, this is used in the the impementation
of that operator. Avoid in C++11 in favor of explicitly asking for the default.

src/gdd/gddI.h

@@ -114,7 +114,11 @@ inline void gdd::setStatSevr(aitInt16 stat, aitInt16 sevr)
         { status.s.aitStat = stat; status.s.aitSevr = sevr; }
 
 inline gdd& gdd::operator=(const gdd& v)
+#if __cplusplus >= 201103L
+        = default;
+#else
 	{ memcpy(this,&v,sizeof(gdd)); return *this; }
+#endif
 
 inline int gdd::isScalar(void) const { return dimension()==0?1:0; }
 inline int gdd::isContainer(void) const

src/gdd/gddTest.cc

@@ -307,7 +307,6 @@ void gdd::test()
 	pdd->convertAddressToOffsets();
 	pdd->convertOffsetsToAddress();
 	pdd->dump();
-	pdd->unreference();
 	delete [] buf;
 }
 #endif
@@ -509,7 +508,6 @@ void gddContainer::test(void)
 	cdd1->dump();
 	fprintf(stderr,"=====RE-DUMP OF ORIGINAL CONTAINER:\n");
 	dump();
-	cdd1->unreference();
 	delete [] buf;
 
 	// test copy(), Dup(), copyInfo()

src/pcas/generic/casCoreClient.cc

@@ -24,7 +24,6 @@
 casCoreClient::casCoreClient ( caServerI & serverInternal ) :
     eventSys ( *this )
 {
-	assert ( & serverInternal );
 	ctx.setServer ( & serverInternal );
 	ctx.setClient ( this );
 }

src/pcas/io/bsdSocket/casDGIntfIO.cc

@@ -423,7 +423,7 @@ void casDGIntfIO::sendBeaconIO ( char & msg, unsigned length,
         osiSockAddrNode	*pAddr = reinterpret_cast<osiSockAddrNode *>(pNode);
 
         ssize_t status = sendto(this->beaconSock, &msg, length, 0, &pAddr->addr.sa, sizeof(pAddr->addr.ia));
-        if ( status != length ) {
+        if ( status != static_cast<ssize_t>(length) ) {
             char sockErrBuf[64], buf[64];
             epicsSocketConvertErrnoToString ( sockErrBuf, sizeof ( sockErrBuf ) );
             ipAddrToA ( &pAddr->addr.ia, buf, sizeof(buf) );