The Design of Software (CLOSED)

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C++ iostream adapter for IStream interface

Does anyone here know that such an adapter exists? I already have all the code that deals with std::iostream. Now I need to find a simple way for the code to work with IStream interface (the COM interface on Windows). If such an adapter exists that will save us much work.
Glitch
Friday, March 07, 2008
 
 
I would implement like this:

1. first rely on win32 API SHCreateMemStream or SHCreateStreamOnFile to create Istream implemantation.

2. then copy std::iostream buffers to the IStream buffer.

it should not involve many lines of code.

SHCreateMemStream/SHCreateStreamOnFile can be found in shlwapi.h.
tomgee Send private email
Wednesday, March 12, 2008
 
 
I had one lo-these-many-years-ago, but it was pre-standard library. And I lost the code anyway.

The trick is to implement a std::streambuf class that wraps the IStream, delegating reads and writes to the underlying IStream. You don't need to touch any of the istream or ostream classes; they all work with streambufs.
Chris Tavares Send private email
Friday, March 14, 2008
 
 

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