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Clarify (lognot bignum)

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* doc/lispref/numbers.texi (Bitwise Operations):
Say that (= (lognot n) (- -1 n)).
This commit is contained in:
Paul Eggert 2019-07-31 06:56:14 -07:00
parent c306848c0f
commit 495d0667fc
1 changed files with 2 additions and 1 deletions
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doc/lispref/numbers.texi
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@ -1072,7 +1072,8 @@ result is 0, which is an identity element for this operation. If
@defun lognot integer
This function returns the bitwise complement of its argument: the @var{n}th
bit is one in the result if, and only if, the @var{n}th bit is zero in
@var{integer}, and vice-versa.
@var{integer}, and vice-versa. The result equals @minus{}1 @minus{}
@var{integer}.
@example
(lognot 5)