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@ -2372,17 +2372,30 @@ as done by @code{scm-error}.
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@node Object Comparisons
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@subsection Object Comparisons
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@deffn generic object-eqv?
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@deffnx method object-eqv? ((x <top>) (y <top>))
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@deffnx generic object-equal?
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@deffnx method object-equal? ((x <top>) (y <top>))
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@deffn generic eqv?
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@deffnx method eqv? ((x <top>) (y <top>))
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@deffnx generic equal?
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@deffnx method equal? ((x <top>) (y <top>))
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@deffnx generic =
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@deffnx method = ((x <number>) (y <number>))
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Generic functions and default (unspecialized) methods for comparing two
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GOOPS objects.
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The default methods always return @code{#f}. Application class authors
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may wish to define specialized methods for @code{object-eqv?} and
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@code{object-equal?} that compare instances of the same class for
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equality in whatever sense is useful to the application.
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The default method for @code{eqv?} returns @code{#t} for all values
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that are equal in the sense defined by R5RS and the Guile reference
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manual, otherwise @code{#f}. The default method for @code{equal?}
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returns @code{#t} or @code{#f} in the sense defined by R5RS and the
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Guile reference manual. If no such comparison is defined,
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@code{equal?} returns the result of a call to @code{eqv?}. The
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default method for = returns @code{#t} if @var{x} and @var{y} are
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numerically equal, otherwise @code{#f}.
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Application class authors may wish to define specialized methods for
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@code{eqv?}, @code{equal?} and @code{=} that compare instances of the
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same class for equality in whatever sense is useful to the
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application. Such methods will only be called if the arguments have
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the same class and the result of the comparison isn't defined by R5RS
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and the Guile reference manual.
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@end deffn
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@node Cloning Objects
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