id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13270	BOOST_CLASS_EXPORT(some_template<>) fails to load pointers	Hajo Kirchhoff <boost@…>	Robert Ramey	"After upgrading from 1.56.0 to 1.65.1 loading pointers with xml_warchive to a template with default template arguments no longer works.
{{{
 BOOST_EXPORT_CLASS(some_template<>)
 
 ptr *some_base_class;
 ar & make_nvp(""ptr"", ptr);
}}}
Saving works okay, loading fails => the type cannot be found.
The problem seems to be related to the <> characters in the default template argument of the BOOST_CLASS_EXPORT. Debugging the serialization code I see that the serialization internal key[] now reads `some_template&lt<>`. Note the ""&lt"" and the ""<"" character. I haven't checked 1.56.0, but my guess is that it was probably `some_template&lt&gt`.

At any rate, having `&lt<` is definitely wrong, as &lt is, of course, escaped <.

Changing BOOST_CLASS_EXPORT to BOOST_CLASS_EXPORT_GUID and specifying the correct key seems to work okay."	Bugs	new	To Be Determined	serialization	Boost 1.65.0	Regression