Hi Sohail! On 10/20/06, Sohail Somani <s.somani@fincad.com> wrote:
If you need to call multiple methods, you can use the invoker interface to the dispatcher -- but still using single dispatch. You can even use Boost.Signals to register a set of methods and register it to the dispatcher on a single index.
Cool! Can it do Common Lisp-like dispatch where it calls one function if 0 <= x < 5 and another if 5 <= x < 10?
Actually, yes! :D The following (incomplete) example below should be sufficient: struct function_chooser { int operator() (int i) const { if ((i >= 0) && (i < 5)) return 0; if ((i >= 5) && (i < 10)) return 5; return 11; }; }; typedef boost::dispatch::dispatcher<void(), int, boost::dispatch::always_true_validator<int>, function_chooser> dispatcher_t ; dispatcher_t d; d[0] = &function_1; d[5] = &function_2; d[11] = &default_function; int input; std::cin >> input; d[input]; HTH! :) -- Dean Michael C. Berris C++ Software Architect Orange and Bronze Software Labs, Ltd. Co. web: http://software.orangeandbronze.com/ email: dean@orangeandbronze.com mobile: +63 928 7291459 phone: +63 2 8943415 other: +1 408 4049532 blogs: http://mikhailberis.blogspot.com http://3w-agility.blogspot.com http://cplusplus-soup.blogspot.com