[Boost-bugs] [Boost C++ Libraries] #5148: tellg requires seekable, even though it's not a seek operation

Subject: [Boost-bugs] [Boost C++ Libraries] #5148: tellg requires seekable, even though it's not a seek operation
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-02-01 16:08:31

#5148: tellg requires seekable, even though it's not a seek operation
------------------------------+---------------------------------------------
 Reporter:  anonymous         |       Owner:  turkanis 
     Type:  Bugs              |      Status:  new      
Milestone:  To Be Determined  |   Component:  iostreams
  Version:  Boost 1.44.0      |    Severity:  Problem  
 Keywords:                    |  
------------------------------+---------------------------------------------
 Problem explained here: hxxp://groups.google.com/group/boost-
 list/browse_thread/thread/941d71547c4cc065?fwc=2&pli=1 . Example code
 demonstrating unexpected behavior included for brevity, in my case
 compiled on MSVC 2008 boost 1.44:
 #include <ostream>
 #include "boost/iostreams/categories.hpp"
 #include "boost/iostreams/filtering_stream.hpp"
 #include "boost/iostreams/filter/zlib.hpp"
 int main()
 {
         boost::iostreams::filtering_stream< boost::iostreams::input >
 strm( ( boost::iostreams::zlib_decompressor() ) );
         char sourceArr[512];
         strm.push( boost::iostreams::array_source( sourceArr, sourceArr +
 sizeof( sourceArr ) ) );
         strm.tellg(); // Throws even though we're not seeking, just
 reading the read head position
 }

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5148>
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