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Diffstat (limited to 'doc/ref/api-utility.texi')
-rw-r--r-- | doc/ref/api-utility.texi | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/doc/ref/api-utility.texi b/doc/ref/api-utility.texi index 76c50b2ca..ffdf27687 100644 --- a/doc/ref/api-utility.texi +++ b/doc/ref/api-utility.texi @@ -1,6 +1,6 @@ @c -*-texinfo-*- @c This is part of the GNU Guile Reference Manual. -@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2011, 2012, 2013 +@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2011, 2012, 2013, 2014 @c Free Software Foundation, Inc. @c See the file guile.texi for copying conditions. @@ -163,12 +163,14 @@ same. into an infinite loop if asked to compare two circular lists or similar. -New application-defined object types (@pxref{Defining New Types -(Smobs)}) have an @code{equalp} handler which is called by -@code{equal?}. This lets an application traverse the contents or -control what is considered @code{equal?} for two objects of such a -type. If there's no such handler, the default is to just compare as -per @code{eq?}. +GOOPS object types (@pxref{GOOPS}), including foreign object types +(@pxref{Defining New Foreign Object Types}), can have an @code{equal?} +implementation specialized on two values of the same type. If +@code{equal?} is called on two GOOPS objects of the same type, +@code{equal?} will dispatch out to a generic function. This lets an +application traverse the contents or control what is considered +@code{equal?} for two objects of such a type. If there's no such +handler, the default is to just compare as per @code{eq?}. @end deffn |