1 Feb
2023
1 Feb
'23
3:27 a.m.
On Mon, 30 Jan 2023, Steve Nickolas wrote:
[...]
I've actually been bitten by compilers doing
unexpectedly stupid things,
so I guard around them. I'll never merge two chars into a short with
c=(a<<8)|b;
I used to do just that to disambiguate commands that started with the same
letter in a UT-200 driver that I (re)wrote. Of course, I was young and
stupid back then...
It's quite something to see things like:
switch (cmd)
{
case 'AA':
...
break;
case 'AB':
...
break;
default:
wtf(); /* no return */
}
Horribly machine-dependent, but I knew the 11/40 and Ed 6 quite well.
[...]
I'll never do if (a==b&&c==d), always if
((a==b)&&(c==d)).
Indeed; I *always* use parentheses even if they are not necessary (for
my benefit, at least).
-- Dave