id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
3166	Possible Bug in Boost.Interprocess vectorstream	chsalvia@…	Ion Gaztañaga	"There is possibly a bug in the vectorstream class found in the Boost Interprocess library.  It seems the internal pointer mp_high_water doesn't get updated every time new data is inserted into the stream via xsputn, which causes problems if you call seekp on a stream.

The following code demonstrates the problem:


{{{
using namespace std;
using namespace boost::interprocess;

typedef basic_ovectorstream<std::vector<char>, std::char_traits<char> > vecstream;
vecstream vs;

vs << ""AAAABBBB"";

vs.seekp(0);

// Output the contents of the internal vector
//
const std::vector<char>& vec = vs.vector();
for (int i = 0; i < vec.size(); ++i) cout << vec[i];
cout << endl;
}}}


This outputs:
AAAAB

When it should output:
AAAABBBB
"	Bugs	closed	Boost 1.40.0	interprocess	Boost 1.39.0	Problem	fixed