initializing a C++ std::istringstream from an in memory buffer?

Question

I have a memory block (opaque), that I want to store in a Blob in mySQL through their C++ adapter. The adapter expects a istream:

virtual void setBlob(unsign         


        

Answer 1

Untested but perhaps worth a test...

std::stringstream ss;
ss.write( blockPtr, blockLength );
ss.seekg(0);

Then call that setBlob function with ss. Your still have that internal buffer in std::stringstream as jalf already mentioned though.