Re^3: What's the opposite of // (err) operator?

Do not use the err keyword. It was introduced in the 5.9.x development series, and made available to all the 5.8.x builds by patches (maintained by me).

The community however decided that err did not have enough good reasons to stay and was removed later on. That made me feel sad, but I am not the one that makes the final decision. The bottom line is that err, which was a special type of operator that could be overruled by a local function with the same name, is not available in 98% perl. Do not use it.

Enjoy, Have FUN! H.Merijn

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Re^4: What's the opposite of // (err) operator? by John M. Dlugosz (Monsignor) on May 11, 2011 at 07:11 UTC
Because it conflicted with functions people had named? That's always the problem with adding a keyword. The docs still show some vestiges. That ought to be fixed.	[reply]
Re^5: What's the opposite of // (err) operator? by eyepopslikeamosquito (Archbishop) on May 11, 2011 at 07:49 UTC
Because it conflicted with functions people had named? AFAICT, it was mainly a "religious" argument. There were some very long P5P threads arguing about the merits of the name "err" versus "dor" (I personally like "err"). Larry changed it to "orelse" for Perl 6 last time I looked. For more detail and links see: Re^3: RFC: Defined-Or for before Perl 5.10 and What happened to dor and err in Perl 5.10?.	[reply]