1 files changed, 15 insertions, 0 deletions
diff --git a/cpp/include/Ice/BasicStream.h b/cpp/include/Ice/BasicStream.h
index 69bfc1a2e53..fcffd268000 100644
--- a/cpp/include/Ice/BasicStream.h
+++ b/cpp/include/Ice/BasicStream.h
@@ -457,6 +457,19 @@ public:
 
     Ice::Int readAndCheckSeqSize(int);
 
+    void startSize()
+    {
+        _sizePos = static_cast<int>(b.size());
+        write(Ice::Int(0));
+    }
+
+    void endSize()
+    {
+        assert(_sizePos >= 0);
+        rewrite(b.size() - _sizePos - 4, _sizePos);
+        _sizePos = -1;
+    }
+
     void writeBlob(const std::vector<Ice::Byte>&);
     void readBlob(std::vector<Ice::Byte>&, Ice::Int);
 
@@ -1126,6 +1139,8 @@ private:
     int _startSeq;
     int _minSeqSize;
 
+    int _sizePos;
+
     static const Ice::Byte FLAG_HAS_TYPE_ID_STRING;
     static const Ice::Byte FLAG_HAS_TYPE_ID_INDEX;
     static const Ice::Byte FLAG_HAS_OPTIONAL_MEMBERS;