Hi, Marco Costalba <mcostalba <at> gmail.com> writes:
Ok I have pushed the (final ?) implementation of overload called "slim" overload because it's much more light and less feature packed then Marco Cecchetti's one.
boost::overload < int(char) , double(int, char) , char(std::string) , void(std::string, std::string, std::string) , int()
f;
// assign functions in any order, as pointers or plain types std::cout << f.set(&foo4) << std::endl; std::cout << f.set(&foo2) << std::endl; std::cout << f.set( foo1) << std::endl; std::cout << f.set( foo5) << std::endl; std::cout << f.set( foo3) << std::endl;
Here's a completely different idea. struct overload_set { int overload(int_<1>, char a) const { return foo1(a); } double overload(int_<2>, int a, char b) const { return foo2(a, b); } char overload(int_<3>, std::string a) const { return foo3(a); } // ... }; This struct can be wrapped into a fusion sequence. Once it's done, transforming it into a tuple of boost::functions is an exercise for a fusion user. Code is here http://cpp-experiment.cvs.sourceforge.net/cpp-experiment/overloads/ I don't remember if the last version can be compiled at all but I remember I couldn't compile in on VC 7.1 (not sure about 8.0). -- Alexander