checking if a list is empty

[Hans Georg Schaathun]

On Sat, 07 May 2011 21:57:13 -0700, Ethan Furman
  <ethan at stoneleaf.us> wrote:
:  If you're going to use a language, and use it well, you have to learn 
:  how that language works.

And if the world evolves around the compiler and you, that advice
suffices.

However, programming is often as much about developing ideas in a large
and complex community, where perfect universal mastery of one language
is not an option, because half the community do not normally use that
language or aren't really programmers at all.  The less you assume about
the skill of the reader, the better it is.

-- 
:-- Hans Georg