On Wed, Mar 5, 2008 at 10:40 PM, vicente.botet <vicente.botet@wanadoo.fr> wrote:
I have take a lock to the code. Could you tell us if there is a deep raison to not use boost::function, boost::enable_if, boost::mpl::list ...?
Only to be self contained, this is not intended to be library, it's more of an example and a concept proposal thing, in case there is interest I can trasnform it in a stable and reliable thing using the above mentioned facilities.
What happens if we forget to initialize one of the signatures? crash ?
Yes. Why it shouldn't ;-) IOW if you "forget" to initialize a function it's a bug. A crash is a very good diagnostic for such a bug.
What can you do to improbe this aspect.
Do you think that is possible to have a version ensuring a default function for each signature? Somting like
overload_ns::overload < signatures<int() , int(char), , double(int, char), , char(string), , string(string, string, string) >, default_functions<foo1, &foo2, foo3, &foo4, foo5_ptr> > f;
A possible better way could be to set the functions directly in the constructor: overload_ns::overload < signatures<int() , int(char), , double(int, char), , char(string), , string(string, string, string) > f(foo1, &foo2, foo3, &foo4, foo5_ptr); BTW in my opinion default functions to avoid a crash when user "forgets" to initialize properly it means to replace a simply discoverable bug with a much more subtle one. This is just my opinion. Thanks Marco