[Emacs-diffs] master 495d066: Clarify (lognot bignum)

[Paul Eggert]

branch: master
commit 495d0667fcf4df9f10c261684162c64f08aadd71
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>

    Clarify (lognot bignum)
    
    * doc/lispref/numbers.texi (Bitwise Operations):
    Say that (= (lognot n) (- -1 n)).
---
 doc/lispref/numbers.texi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/lispref/numbers.texi b/doc/lispref/numbers.texi
index cae8bab..0c71387 100644
--- a/doc/lispref/numbers.texi
+++ b/doc/lispref/numbers.texi
@@ -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)