Re^4: What's the opposite of // (err) operator?

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Re^5: What's the opposite of // (err) operator? by Tux (Canon) on May 11, 2011 at 07:17 UTC
What version of perl, and which part of the docs? I can "fix" it for the development branch. Enjoy, Have FUN! H.Merijn	[reply]
Re^6: What's the opposite of // (err) operator? by John M. Dlugosz (Monsignor) on May 11, 2011 at 07:30 UTC
`http://perldoc.perl.org/5.10.1/perlop.html#Logical-or,-Defined-or,-and-Exclusive-Or` Perhaps add your comments above as to the brief availablity of `err` after the mention of `xor`. Ikigama's observation that you might not even need the lower-precedence version would be good to tell people, too.	[reply] [d/l]
Re^7: What's the opposite of // (err) operator? by Tux (Canon) on May 11, 2011 at 09:41 UTC
I've just browsed that page, and I don't see the word "`err`" being mentioned anywhere at all, so I have nothing to fix. The current docs only mention `err` in the delta files for 5.9.x: `perl-git/pod > grep -w err * perl590delta.pod:It has a low-precedence counterpart, C<err>, which ha +s the same precedence perl593delta.pod:(adds a C<say> built-in function), and C<err> (adds a +n C<err> keyword). perl593delta.pod:Note that C<err> low-precedence defined-or operator u +sed to be enabled by perldebtut.pod: DM<3>X ~err perlhack.pod:documented. If you are going to err, it is better to err +on the side of perltodo.pod: errno_t err = fopen_s(&f, __FILE__, "r"); perl-git/pod >` [download] Enjoy, Have FUN! H.Merijn	[reply] [d/l] [select]
Re^8: What's the opposite of // (err) operator? by John M. Dlugosz (Monsignor) on May 12, 2011 at 06:20 UTC
Re^5: What's the opposite of // (err) operator? by ikegami (Patriarch) on May 11, 2011 at 15:28 UTC
Well, it depends on the expression. You can always use parens around the expressions. They should rarely be required, though, since the expression is probably an array or hash lookup, or a function call. (I use parens on around function call argument lists.)	[reply]