From: "Steven Watanabe" <watanabesj@gmail.com> I consider any speed differences to be highly unlikely. IMO, you should pick one interface and stick to it. There is no reason to provide several ways to do the same thing when there are only minor syntactic differences.
Thanks, Steven. This is much appreciated. In my own work I certainly strive to provide one way to do one thing. Here with so many different opinions, preferences, etc. I find it difficult. If we are to pick one out of the following three: { return safebool<Foo>(c); } { return safebool<Foo>::apply(c); } { return make_safebool<Foo>(c); } Then, I can't think of a reason why the user might prefer 'safebool::apply()' to just 'safebool()'. As for or 'make_safebool', then make_pair() was introduced to simplify pair creation. Given creating safebool is straightforward, I do not feel 'make_safebool' makes things any clearer. V.