Wow ... I consider myself reasonably well-versed with C, and I had never heard of that header. I would of course, bias and all, consider any programmers decidi

Wow ... I consider myself reasonably well-versed with C, and I had never heard of that header. I would of course, bias and all, consider any programmers deciding to use it to be well out of touch with reality. I don't see a real-world benefit either, all it does is make those guys feel macho and elite for knowing something (of little value, in my opinion), and making the code hugely harder to maintain. Ask a manager, while providing some kind of statistical data showing how common use of this header is in C code "in the wild". A quick search with code.google.com gives _0_ hits for "iso646.h", that tells me something.