formfeeds in C source

[pn at stc.UUCP]

What does C do with ^L (formfeed) in a source file?  I don't mean anywhere,
just where one would logically put it for throwing a page on a printer, say
to split functions to separate pages.  I cannot find a reference to this
anywhere in K&R.  On a Vax running Ultrix, the pre-processor passes the ^L
through unchanged, and neither cc nor lint complain.  Is ^L universally
accepted by C compilers?
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Phil Norris	<pn at stc.UUCP>
		{root44, ukc, datlog, idec, stl, creed, iclbra, iclkid}!stc!pn