id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
2685	[serialization][variant]Deserializing 'which' should check for values less than 0	"Nevin "":-)"" Liber <nevin@…>"	Robert Ramey	"In <boost/serialization/variant.hpp>:


{{{
template<class Archive, BOOST_VARIANT_ENUM_PARAMS(/* typename */ class T)>

void load(
    Archive & ar, 
    boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>& v,
    unsigned int version
){      
    int which;
    typedef BOOST_DEDUCED_TYPENAME boost::variant<BOOST_VARIANT_ENUM_PARAMS(T)>::types types;
    ar >> BOOST_SERIALIZATION_NVP(which);
    if(which >=  mpl::size<types>::value)
        // this might happen if a type was removed from the list of variant types
        boost::serialization::throw_exception(
            boost::archive::archive_exception(
                boost::archive::archive_exception::unsupported_version
            )
        );
       //...

}}}
Since 'which' is an int, there should be a check and an exception thrown if which < 0."	Bugs	closed	Boost 1.38.0	serialization	Boost 1.37.0	Problem	wontfix