Should we deprecate comma?

[Meta]

On Monday, 24 March 2014 at 02:31:46 UTC, Andrei Alexandrescu 
wrote:
> One concession we could make would be to disallow using the 
> result of the operator. That might actually catch all bugs 
> discussed herein.
>
> if (condition) ++i, ++j; // fine
> foreach (e; exp1, exp2) {}   // ERROR
> if(pMgr->ShouldRecordEvent(eSE_Weapon), pOwnerRaw) // ERROR
> return pMgr->RecordEvent(eSE_Weapon), pOwnerRaw; // ERROR
>
> I think this would be a compromise worth looking into.
>
>
> Andrei

That's a good idea. I never personally use the comma operator, as 
I think that it makes code less readable having multiple 
expressions evaluated on a single line. For the same reason, I 
almost never put multiple semicolon-delimited statements on the 
same line. Code like the above I find particularly egregious. It 
plays havoc with the programmer's expectation that they can parse 
the code left-to-right to figure out the result of an expression, 
forcing them to read in spirals. This is just as bad as the 
pointer declaration syntax for C/C++, just not as common.