2 Feb
2017
2 Feb
'17
10:50 a.m.
On Feb 2, 2017, at 1:41 PM, Noel Chiappa <jnc at
mercury.lcs.mit.edu> wrote:
If "ip" is an int *, it would pass the address in ip plus 2 * 2. If ip is
actually the address of some struct, then hopefully that address offset by 4 is a
meaningful address. I'm guessing that the 2 in there represents
sizeof(foo)/sizeof(int). Right?
paul
From: Phil Blundell
I suspect it would probably not be all that hard
to write some
sort of preprocessor to convert such code
Really? Check out:
http://minnie.tuhs.org/cgi-bin/utree.pl?file=V6/usr/sys/ken/pipe.c
(Needless to say, none of the 'int *' things are actually pointers to
integers!)
In particular, what will lines like this:
sleep(ip+2, PPIPE);
do, depending on what 'ip' is declared as?