Am Fri, 27 Dec 2013 20:34:02 +0000 schrieb "Ivan Kazmenko" <ga...@mail.ru>:
> Maybe the imperative should be "repeat is a function, and > arguments of functions should be evaluated only once"? It does > make sense from a language point of view, but somewhat breaks the > abstraction for me. The documentation is clear about it: "Repeats one value forever." It has nothing to do with purity, whether the input range is lazy or the element is fetched eagerly. If it was meant to do what you expected it would read: "Constructs a range from lazily evaluating the expression passed to it over and over." This is not a limitation of the language either I think, since arguments to functions can be declared "lazy". -- Marco
