How do I SHORTEN a file without rewriting it?

[Henry Spencer]

In article <1244 at bilver.UUCP> alex at bilver.UUCP (Alex Matulich) writes:
>I was hoping there was a portable ANSI-ish way to accomplish this...

Basically, no.  ANSI C unfortunately cannot be very ambitious about file
operations, since there are so many brain-damaged operating systems out
there that are nevertheless viable C environments.
-- 
The type syntax for C is essentially   | Henry Spencer at U of Toronto Zoology
unparsable.             --Rob Pike     |  henry at zoo.toronto.edu   utzoo!henry