[J3] Question about the conditional expression syntax in 21-157r2

[Malcolm Cohen]

Hi Milan,

 

Well, using ordinary parens instead of special parens was what I objected to.

 

But without any delimiter, there is ambiguity and a greatly increased risk of error.

 

So IMO,

   special parens = best

   ordinary parens = acceptable

   no parens = unacceptable

 

Cheers,

-- 

..............Malcolm Cohen, NAG Oxford/Tokyo.

 

From: J3 <j3-bounces at mailman.j3-fortran.org> On Behalf Of Milan Curcic via J3
Sent: Thursday, July 1, 2021 2:54 AM
To: General J3 interest list <j3 at mailman.j3-fortran.org>
Cc: Milan Curcic <caomaco at gmail.com>
Subject: [J3] Question about the conditional expression syntax in 21-157r2

 

Hi Malcolm,

 

In 21-157r2, you wrote:

 

> Conditional expression with elseif-chaining:
>     ( cond ? expr : cond2 ? expr2 : expr3 )

 

Are parens required? It seems to me that they don't need to be and we could write:

 

Conditional expression with elseif-chaining:

     cond ? expr : cond2 ? expr2 : expr3

 

and if a programmer likes parens as a visual, they can add them.

 

What do you think?

 

Thanks,

Milan

 

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