Beefy Boxes and Bandwidth Generously Provided by pair Networks
P is for Practical

Re^3: "x ? y : z" notation

by rovf (Priest)
on Mar 26, 2009 at 09:09 UTC ( #753371=note: print w/replies, xml ) Need Help??

in reply to Re^2: "x ? y : z" notation
in thread "x ? y : z" notation

take advantage of the fact that the ternary operator has a return value
How true; Perl is a bit unorthogonal in this respect, in that there is (at least) one case where you can achieve this effect with a plain 'if':

sub lessthan { if($_[0] < $_[1]) {1} else {0} }
Some languages (old examples: Algol60 and Algol68) are more regular in this respect...

BTW, does someone know by chance which was the first language which used ?: to represent "ternary if"? Of course you had this already in LISP or BCPL, but with a different syntax. The earliest occurance of ?: I know of, is in C, but I wouldn't be surprised if it was used in even older languages already.

Ronald Fischer <>

Replies are listed 'Best First'.
Re^4: "x ? y : z" notation
by poolpi (Hermit) on Mar 26, 2009 at 10:31 UTC

Log In?

What's my password?
Create A New User
Domain Nodelet?
Node Status?
node history
Node Type: note [id://753371]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others avoiding work at the Monastery: (5)
As of 2023-03-23 11:12 GMT
Find Nodes?
    Voting Booth?
    Which type of climate do you prefer to live in?

    Results (60 votes). Check out past polls.