Subject: [Boost-users] adding elements to a std::container in a single expression Message-ID: <j2787j$bj9$1@dough.gmane.org> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original

until now I've usually written my own template to do this:

template<typename T> struct push_back_container:T { push_back_container &_push_back(const typename T::value_type &_r) { push_back(_r); return *this; } };

one can use this like this:

push_back_container<std::vector<something>

...

()._push_back(something1)._push_back(_something2)

Is there some more elegant way to do this?

Been there, and had the same issues. I've always wondered why std::vector gives you so many ways to assign values to it, but so few to append items, as personally I want to append items much more often than totally change a vector's contents. For what you want to do there is also a standard assign-with-back-inserter whatchamacallit : include vector include algorithm // assign include iterator // back_inserter std::copy( source.begin(), source.end(), std::back_inserter( targetSequenceWithpush_back_memberFn ) );