Support serialization as another type without casting

This adds a READWRITEAS(type, obj) macro which serializes obj as if it
were casted to (const type&) when const, and to (type&) when non-const.

This makes it usable in serialization code that uses a single
implementation for both serialization and deserializing, which doesn't
know the constness of the object involved.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index 5ac8457eb4..ae94d53401 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -395,7 +395,7 @@ public:
             mapValueCopy["timesmart"] = strprintf("%u", nTimeSmart);
         }
 
-        s << *static_cast<const CMerkleTx*>(this);
+        s << static_cast<const CMerkleTx&>(*this);
         std::vector<CMerkleTx> vUnused; //!< Used to be vtxPrev
         s << vUnused << mapValueCopy << vOrderForm << fTimeReceivedIsTxTime << nTimeReceived << fFromMe << fSpent;
     }
@@ -406,7 +406,7 @@ public:
         Init(nullptr);
         char fSpent;
 
-        s >> *static_cast<CMerkleTx*>(this);
+        s >> static_cast<CMerkleTx&>(*this);
         std::vector<CMerkleTx> vUnused; //!< Used to be vtxPrev
         s >> vUnused >> mapValue >> vOrderForm >> fTimeReceivedIsTxTime >> nTimeReceived >> fFromMe >> fSpent;