I'm not a huge fan of the first rule. It's valid as stated, but the examples are questionable. I've seen all those in real code, and they're kind of annoying.

I'm not a huge fan of the first rule. It's valid as stated, but the examples are questionable. I've seen all those in real code, and they're kind of annoying. auto f = make_widget(); // is f of type widget or widget*? auto i = 123; // ok, I guess, but... // int i = 123; is shorter and more clear. auto x = vec3(1.0, 0.0, 0.0); // this can be shorter and simpler. // vec3 x(1.0, 0.0, 0.0);