Re: !0 is not necessarily 1 (was Re: Secret Perl Operators: the boolean list squash operator, x!!) (Larry)

Quoting elsewhere in this very thread:

it's mentioned in the Camel, in the "Ideographic Unary Operators" section, page 92:
Unary ! performs logical negation, that is, "not". See not for a lower precedence version of logical negation. The value of a negated operand is true (1) if the operand is false (numeric 0, string "0", the null string, or undefined) and false ("") if the operand is true.

So I guess that boat has sailed not just practically (which it did a long, long time ago) but also as far as being officially documented. Larry did have some editorial control over "the Camel", no?

- tye

Comment on Re: !0 is not necessarily 1 (was Re: Secret Perl Operators: the boolean list squash operator, x!!) (Larry)

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Re^2: !0 is not necessarily 1 (was Re: Secret Perl Operators: the boolean list squash operator, x!!) (Larry) by merlyn (Sage) on Aug 01, 2006 at 14:58 UTC
The camel is a derived text, not an authoritative text, because it's never viewed as "a required doc" for Perl development. When the patch is made to perldoc, I'll shut up about my claim. The evidence in the camel is a hint that the perldoc should indeed be patched. -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply]
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