5 Jan
2017
5 Jan
'17
10:24 a.m.
On Wed, Jan 04, 2017 at 04:41:06PM +0000, ron minnich wrote:
I just went looking at the v6 source to confirm a
memory, namely that cpp
was only invoked if a # was the first character in the file. Hence, this:
https://github.com/dspinellis/unix-history-repo/blob/Research-V6-Snapshot-D…
In v6 cc(1) still does the job itself. Here is where it actually happens, in expand():
https://github.com/dspinellis/unix-history-repo/blob/Research-V6-Snapshot-D…
Now I'm curious. Anyone know when that convention
ended?
In v7 various files still have # as first character, but the requirement has gone,
https://github.com/dspinellis/unix-history-repo/tree/Research-V7/usr/src/cm…
# cat x.h
/* */
#define macro value
macro
# /lib/cpp x.h
# 1 "x.h"
value
#