On Thursday, 11 October 2018 at 23:17:15 UTC, Jonathan Marler
wrote:
On Thursday, 11 October 2018 at 21:57:00 UTC, Jonathan M Davis
wrote:
On Thursday, October 11, 2018 1:09:14 PM MDT Jonathan Marler
via Digitalmars-d wrote:
On Thursday, 11 October 2018 at 14:35:34 UTC, James Japherson
wrote:
> [...]
In c++ the ternary operator is the second most lowest
precedence operator, just above the comma. You can see a
table of each operator and their precendence here, I refer to
it every so often:
https://en.cppreference.com/w/cpp/language/operator_precedence
Learning that the ternary operator has such a low precedence
is one of those things that all programmers eventually run
into...welcome to the club :)
It looks like D has a similar table here
(https://wiki.dlang.org/Operator_precedence). However, it
doesn't appear to have the ternary operator in there. On that
note, D would take it's precedence order from C/C++ unless
there's a VERY good reason to change it.
The operator precedence matches in D. Because in principle, C
code should either be valid D code with the same semantics as
it had in C, or it shouldn't compile as D code, changing
operator precedence isn't something that D is going to do
(though clearly, the ternary operator needs to be added to the
table). It would be a disaster for porting code if we did.
- Jonathan M Davis
I had a look at the table again, looks like the ternary
operator is on there, just called the "conditional operator".
And to clarify, D's operator precedence is close to C/C++ but
doesn't match exactly.
Please do not conflate C and C++. It is specifically on order of
precedence of the ternary that the 2 languages differ. It is C++
and only C++ which has the unconventionnal order of precedence
where the ternary has the same priority as the assign operators.
ALL other C derived languages have a higher priority for the
ternary than the assignments.
