Re: [PATCH 23/24] select_tut.2: Use MAX(a, b) from <sys/param.h>

From: Alejandro Colomar
Date: Fri Sep 11 2020 - 04:46:37 EST

Hi Michael,

On 2020-09-11 09:54, Michael Kerrisk (man-pages) wrote:
Hi Alex,

On 9/10/20 11:13 PM, Alejandro Colomar wrote:
Signed-off-by: Alejandro Colomar <colomar.6.4.3@xxxxxxxxx>

I'm reluctant to apply this, because MAX() is not a standard
macro. I suppose it may not be present on some other UNIX
systems. You thoughts?

I know the BSDs have it; maybe not all of them (I don't know them all), but it is present at least in OpenBSD, libbsd, FreeBSD so I guess it's common enough.
For other UNIX systems, I have no idea.
Maybe there's some unicorn UNIX that doesn't have it... impossible to tell.