For printing:
C, sprintf
CL, format or formatter format is probably the most superior formatting function I've seen when it comes to features that it's not even funny, but it's more complex, and thus is slower than just sprintf, which is slower than just manually converting your strings. formatter strikes a good balance as it compiles the format string into real code, which means it's usually much faster than printf-likes (imagine what it would be if your printf statement would convert into strdups, itoa's and the like, at compile time, only you could also add conditionals and more complex expressions!).
If I had to pick some general functions... COMPILE and MULTIPLE-VALUE-CALL would be in my list of favorites, but I barely use them directly, even though most things rely on them invisibly.
Name:
Anonymous2010-01-11 8:21
In general I find the call-with-* style functions to be extremely useful, but I'd have to give the prize to apply
Name:
Anonymous2010-01-11 8:35
>>16
I guess you are, if you noticed this.
Also, strrchr. Seems a bit like hrhrhrhrhr
>>38
How will you do IO with a pure Anus? It doesn't seem very practical to me. In the real world we need impure Anii, and you can fuck off with your ivory tower bullshit.