id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
12945	boost::iostreams filtering streambufs only work with binary archive	fiesh@…	Robert Ramey	"Since there is no portable binary format, using the text archive and gzipping it seems convenient.  However, using boost::iostream's filtering_streambuf only works with the binary archive, not the text archive, which is somewhat surprising.

{{{#!cpp
#include <iostream>
#include <sstream>

#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/text_oarchive.hpp>
#include <boost/iostreams/filter/gzip.hpp>
#include <boost/iostreams/filtering_streambuf.hpp>
#include <boost/serialization/vector.hpp>

int main()
{
	const std::vector<int> v{0, 1, 2};
	std::stringstream ss;

	{
		boost::iostreams::filtering_ostreambuf o;
		o.push(boost::iostreams::gzip_decompressor());
		o.push(ss);
		// filtering_ostreambuf isn't accepted by text_oarchive's ctor, only by binary_oarchive
		// So this doesn't work
		boost::archive::text_oarchive oa(o);
		// But this does
		// boost::archive::binary_oarchive oa(o);
		oa << v;
	}

	std::cout << ss.str() << '\n';
	return 0;
}
}}}
"	Feature Requests	closed	To Be Determined	serialization	Boost 1.62.0	Problem	invalid