From 818dc74ba2745872fd68d2158380fc8bd331210e Mon Sep 17 00:00:00 2001
From: Pieter Wuille <pieter.wuille@gmail.com>
Date: Fri, 7 Jul 2017 16:06:56 -0700
Subject: 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.
---
 src/txdb.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/txdb.h')

diff --git a/src/txdb.h b/src/txdb.h
index 2fc69e563b..830b65a322 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -46,7 +46,7 @@ struct CDiskTxPos : public CDiskBlockPos
 
     template <typename Stream, typename Operation>
     inline void SerializationOp(Stream& s, Operation ser_action) {
-        READWRITE(*static_cast<CDiskBlockPos*>(this));
+        READWRITEAS(CDiskBlockPos, *this);
         READWRITE(VARINT(nTxOffset));
     }
 
-- 
cgit v1.2.3