id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 2844,[proto] be more explicit in the docs about proto::extends,Eric Niebler,Eric Niebler,"be more explicit in the docs (users' guide and reference) about what the template parameters to proto::extends mean and how to initialize a proto::extends base sub-object. Also, describe how to initialize an expression extension object defined with BOOST_PROTO_EXTENDS. ",Tasks,closed,Boost 1.39.0,proto,Boost 1.38.0,Cosmetic,fixed,,