changeset 4472:a99eb40f0b5b

Correct an omitted word, expand on bignum equality in the lispref. 2008-05-29 Aidan Kehoe <kehoea@parhasard.net> * lispref/objects.texi (Equality Predicates): Expand on bignum equality; correct an omitted word in the last commit.
author Aidan Kehoe <kehoea@parhasard.net>
date Thu, 29 May 2008 18:53:45 +0200
parents 2d39535e1f9d
children 0204391fc17c 44d10aae73ef
files man/ChangeLog man/lispref/objects.texi
diffstat 2 files changed, 13 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/man/ChangeLog	Tue May 27 11:58:42 2008 +0200
+++ b/man/ChangeLog	Thu May 29 18:53:45 2008 +0200
@@ -1,3 +1,9 @@
+2008-05-29  Aidan Kehoe  <kehoea@parhasard.net>
+
+	* lispref/objects.texi (Equality Predicates): 
+	Expand on bignum equality; correct an omitted word in the last
+	commit. 
+
 2008-05-27  Aidan Kehoe  <kehoea@parhasard.net>
 
 	* lispref/objects.texi (Equality Predicates): 
--- a/man/lispref/objects.texi	Tue May 27 11:58:42 2008 +0200
+++ b/man/lispref/objects.texi	Thu May 29 18:53:45 2008 +0200
@@ -2247,10 +2247,12 @@
 
 @code{eq} returns @code{t} if @var{object1} and @var{object2} are
 integers with the same value.  It is preferable to use @code{=} or
-@code{eql} in many contexts for numeric comparison; @pxref{Comparison of
-Numbers}. @code{eq} also returns @code{t} if @var{object1} and
-@var{object2} are identical characters, though in this case you may
-prefer to use @code{char=}.
+@code{eql} in many contexts for numeric comparison, especially since
+bignums (integers with values that would have otherwise overflowed, only
+available on some builds) with the same value are not @code{eq};
+@pxref{Comparison of Numbers}. @code{eq} also returns @code{t} if
+@var{object1} and @var{object2} are identical characters, though in this
+case you may prefer to use @code{char=}.
 
 Also, since symbol names are normally unique, if the arguments are
 symbols with the same name, they are @code{eq}.  For other types (e.g.,
@@ -2264,7 +2266,7 @@
 the same name are not @code{eq}.  @xref{Creating Symbols}.)
 
 NOTE: Under XEmacs 19, characters are really just integers, and thus
-characters and integers with the same numeric are @code{eq}.  Under
+characters and integers with the same numeric code are @code{eq}.  Under
 XEmacs 20, it was necessary to preserve remnants of this in function
 such as @code{old-eq} in order to maintain byte-code compatibility.
 Byte code compiled under any Emacs 19 will automatically have calls to