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

[tye]

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

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?

[merlyn]

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.

[Anonymous Monk]

Could you shut yourself up (would you submit the patch)?