X-Git-Url: http://g0dil.de/git?a=blobdiff_plain;f=senf%2FPackets%2FPacket.cci;h=e5f9f4ded3d5036307414861ae5abc602e2e47be;hb=961cf85a6abf2b5f0a7958bbfcd8f72e7b32721b;hp=862c04cd29a9e6fbccf685fa719e9dbaa2a62e87;hpb=26610f603ebdd465307b9621f532c1fe19fd5571;p=senf.git

diff --git a/senf/Packets/Packet.cci b/senf/Packets/Packet.cci
index 862c04c..e5f9f4d 100644
--- a/senf/Packets/Packet.cci
+++ b/senf/Packets/Packet.cci
@@ -34,14 +34,14 @@
 
 // protected members
 
-prefix_  senf::Packet::Packet(PacketInterpreterBase::ptr packet)
+prefix_  senf::Packet::Packet(PacketInterpreterBase::ptr const & packet)
     : packet_(packet)
 {}
 
-prefix_ senf::PacketInterpreterBase::ptr senf::Packet::ptr()
+prefix_ senf::PacketInterpreterBase::ptr const & senf::Packet::ptr()
     const
 {
-    SENF_ASSERT(packet_);
+    SENF_ASSERT(packet_, "Invalid operation (dereferencing) on in-valid() Packet");
     return packet_;
 }
 
@@ -64,7 +64,9 @@ prefix_ senf::Packet senf::Packet::next(NoThrow_t)
     const
 {
     PacketInterpreterBase::ptr p (ptr()->next());
-    return !p && ptr()->nextPacketRange() ? checkNext() : Packet(p);
+    if (p) return Packet(p);
+    PacketInterpreterBase::optional_range r (ptr()->nextPacketRange());
+    return (r && ! r->empty()) ? getNext() : Packet();
 }
 
 prefix_ senf::Packet senf::Packet::next()
@@ -99,7 +101,7 @@ prefix_ senf::Packet senf::Packet::last()
     const
 {
     Packet p (ptr()->last());
-    return p.next(nothrow) ? checkLast() : p;
+    return p.next(nothrow) ? getLast() : p;
 }
 
 prefix_ senf::Packet senf::Packet::parseNextAs(factory_t factory)