Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!decwrl!sun!quintus!ok
From: ok@quintus.UUCP (Richard A. O'Keefe)
Newsgroups: comp.lang.c
Subject: Re: trigraphs in X3J11
Message-ID: <1021@cresswell.quintus.UUCP>
Date: 25 May 88 22:59:35 GMT
References: <5215@ico.ISC.COM> <7937@brl-smoke.ARPA> <5424@ico.ISC.COM>
Organization: Quintus Computer Systems, Mountain View, CA
Lines: 9

In article <5424@ico.ISC.COM>, rcd@ico.ISC.COM (Dick Dunn) writes:
> Wait.  I said that ?? (the trigraph introducer, if you will) is not at all
> rare, and this is easy to confirm.  Occurrences of ?? are important because
> they represent situations where the next character could cause trouble.

I just checked a directory containing 126 utility sources (some of which I
got from the net, some of which I got from a friendly wizard years ago) and
4 of them contained ?? inside strings.  If I've understood the rules, only
two of them would actually break.  Rather alarming:  before I made this
check I was happy about trigraphs:  they won't break _my_ code, I said!