What's the best way to force the user of a C++ function to acknowledge the semantic meaning of parameters that are numerical constants?

Question

I\'d like to write function interfaces that force the user to acknowledge the semantic meaning of built-in constants. For example, I\'d like to take

void rotate(         


        

Answer 1

With the simplest versions (a typedef, a class with one member attribute and inlined accessors) the compiler can make it just as fast the plain float version.

Also consider using some metaprogramming library like boost.units.