This made me remember my own old post about tuples & pairs: http://lists.boost.org/MailArchives/boost/msg64193.php i.e to make the tuple::get<> accessor support pairs also. (actual patches: http://lists.boost.org/MailArchives/boost/msg05245.php) I spoke to Jaakko about this at the time and he was postivite, but it seems it ended up in the backlog.. Myself I almost forgot about it during the summer. Perhaps this could be reconsidered? Regards // Fredrik Blomqvist John Maddock wrote:
The following simple patch to tuple_basic.hpp allows tuples to be constructed from std::pairs (there is already an assignment operator, but the copy constructor is missing for some reason, and is required for TR1 conformity).
RCS file: /cvsroot/boost/boost/boost/tuple/detail/tuple_basic.hpp,v retrieving revision 1.28 diff -r1.28 tuple_basic.hpp 627a628,636
template <class T, class U> tuple(const std::pair<T, U>& p) : inherited(p.first, p.second, detail::cnull(), detail::cnull(), detail::cnull(), detail::cnull(), detail::cnull(), detail::cnull(), detail::cnull(), detail::cnull()) { BOOST_STATIC_ASSERT(length<tuple>::value == 2);// check_length = 2 }
Is it acceptable to add this?
Many thanks,
John Maddock.
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