AMDG Ingo.Loehken@boc-eu.com wrote:
boost 1.35 (boost::mpl::vector)
models a front extensible sequence. of course this does not make sense, because inserting at front implies n operations, where the docu states it takes only constant compile time.
boost 1.36 (boost::mpl::vector)
so an compile time assertion tells, that push_front is not supported for vectors. (docu dont states so)
push_front is supported for mpl::vector.
boost 1.35 (boost::mpl::list )
is a front and back extensible sequence, so push_front and push_back are supported as for std::list (that ok).
boost 1.36 (boost::mpl::list)
is no longer back extensible, because a compile time assertion tells, that the push_back is no longer supported for lists. maybe its planned to change the implementation to a recursive list, then inserting at back, will take O(n), but a list must support push_back. please fix that.
docu states, a list is front and back extensible (inconsitent to assertion).
Where do the docs say that mpl::list is back extensible. AFAIK, mpl::list has never supported push_back. Could you please post specific code which fails that you think ought to succeed? In Christ, Steven Watanabe