C++ guys hate static_if?

[Sergei Nosov]

 From 
http://herbsutter.com/2013/03/14/words-of-wisdom-bjarne-stroustrup/?utm_source=tf&utm_medium=t

Bjarne Stroustrup wrote the following a few minutes ago on the 
concepts mailing list:

"Let me take this opportunity to remind people that

* "being able to do something is not sufficient reason for doing 
it" and
* "being able to do every trick is not a feature but a bug"

For the latter, remember Dijkstra’s famous "Goto considered 
harmful" paper. The point was not that the "new features" (loop 
constructs) could do every goto trick better/simpler, but that 
some of those tricks should be avoided to simplify good 
programming.

Concepts and concepts lite are meant to make good generic 
programming simpler. They are not meant to be a drop-in 
substitute for every metaprogramming and macroprogramming trick. 
If you are an expert, and if in your expert opinion you and your 
users really need those tricks, you can still use them, but we 
need to make many (most) uses of templates easier to get right, 
so that they can become more mainstream. That where concepts and 
concept lite fits in.

Some of you may find this hard to believe, but "back then" there 
was quite serious opposition to function declarations because 
"they restricted the way functions could be used and the way 
separate compilation could be used" and also serious opposition 
to virtual functions "because pointers to functions are so much 
more flexible." I see concepts lite (and concepts) in the same 
light as goto/for, 
unchecked-function-arguments/function-declarations, 
pointers-to-functions/abstract-classes."