----Original Message---- From: Boris [mailto:boris@gtemail.net] Sent: 04 October 2005 13:18 To: boost@lists.boost.org Subject: Re: [boost] boost::dynamic_array
The reason why I don't want to use std::vector in the project I work on is that I need a two-dimensional array. Two-dimensional means that the array stores not only the length but also width and height. Additionally its elements can be accessed with operator()(size_t column, size_t row). Now I could derive my two-dimensional array from std::vector but that doesn't make much sense because how should the dimensions change when someone calls push_back()? A fixed-size array whose size can be set a runtime would be an ideal candidate to derive my two-dimensional array from. For all arrays with more than one dimension std::vector isn't probably an ideal parent class.
So don't /derive/ from std::vector, /contain/ a std::vector instead (and forward the appropriate calls to it). It's really not very difficult (particularly as you don't need to both with eg any of the 'insert' overloads). -- Martin Bonner Martin.Bonner@Pitechnology.com Pi Technology, Milton Hall, Ely Road, Milton, Cambridge, CB4 6WZ, ENGLAND Tel: +44 (0)1223 441434