From: rmswierczek@gmail.com (Robert Swierczek)
Subject: [TUHS] When was #if introduced in C? (was: Re: Mac OS X is Unix)
Date: Tue, 3 Jan 2017 16:53:02 -0500 [thread overview]
Message-ID: <CAAFR5pb8d1msb+XdWPPKvAsO=eQsPgiAY8Q3cVRxoQtj_PtWkg@mail.gmail.com> (raw)
In-Reply-To: <20170103213331.GN31772@yeono.kjorling.se>
> Which makes me curious... Does anyone here happen to know when #if was introduced in C?
From what I can gather from studying the TUHS archives, the earliest
cpp that supports #if is in PWB:
http://minnie.tuhs.org/cgi-bin/utree.pl?file=PWB1/sys/c/c/cpp.c
Before that, the pre-processor resides within the cc.c command and #if
is not supported:
http://minnie.tuhs.org/cgi-bin/utree.pl?file=V6/usr/source/s1/cc.c
next prev parent reply other threads:[~2017-01-03 21:53 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-03 20:19 [TUHS] Mac OS X is Unix Doug McIlroy
2017-01-03 21:05 ` Charles Anthony
2017-01-03 21:33 ` [TUHS] When was #if introduced in C? (was: Re: Mac OS X is Unix) Michael Kjörling
2017-01-03 21:53 ` Robert Swierczek [this message]
2017-01-03 21:57 ` Clem Cole
2017-01-03 21:56 ` Clem Cole
2017-01-03 21:35 ` [TUHS] Mac OS X is Unix Clem Cole
2017-01-03 22:10 ` Lyndon Nerenberg
2017-01-03 21:39 ` Lyndon Nerenberg
2017-01-03 22:12 ` ron minnich
2017-01-03 23:39 ` Tim Bradshaw
2017-01-04 0:12 ` ron minnich
2017-01-04 9:11 ` Tim Bradshaw
2017-01-04 10:04 ` Álvaro Jurado
2017-01-04 0:13 ` Steve Johnson
2017-01-04 3:50 ` Dan Cross
2017-01-04 12:26 ` Tim Bradshaw
2017-01-04 13:49 ` Random832
2017-01-04 15:02 ` Dan Cross
2017-01-04 17:14 ` tfb
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