10 Mar
2025
10 Mar
'25
3:06 a.m.
On Sun, Mar 09, 2025 at 08:55:20PM -0400, Stuff Received wrote:
On 2025-03-09 19:39, Lawrence Stewart wrote:
Good for you, we were the same. It's not that hard to make the code
easier to read.
--lm
The C operator precedence table has 15 precedence
levels, from ???++" down
to ???,"
(see https://en.cppreference.com/w/c/language/operator_precedence
<https://en.cppreference.com/w/c/language/operator_precedence>)
This is nuts. ??I don???t remember them and I wouldn???t trust an engineer
who claimed to.
Around 2005, when I was doing some chip verification, I found a hard to
notice operator precedence bug (in VHDL, but it is the same issue) that
would have cost us a half-million dollar mask spin.
If there is more than one operator, I use parens (I do write a[x] + b[x],
that one I know.)
Our K-12 system isn???t doing us any favors when they think PEMDAS is
???mathematics???.
-L
PS I???ve been a little angry about this since my 6th grader got marked
down for using ???extra??? parentheses in class.
Parentheses around expressions were required in our coding style.