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This package defines the Common Lisp predicate cl-equalp
.
This function is a more flexible version of
equal
. In particular, it compares strings case-insensitively, and it compares numbers without regard to type (so that(cl-equalp 3 3.0)
is true). Vectors and conses are compared recursively. All other objects are compared as if byequal
.This function differs from Common Lisp
equalp
in several respects. First, Common Lisp'sequalp
also compares characters case-insensitively, which would be impractical in this package since Emacs does not distinguish between integers and characters. In keeping with the idea that strings are less vector-like in Emacs Lisp, this package'scl-equalp
also will not compare strings against vectors of integers.
Also note that the Common Lisp functions member
and assoc
use eql
to compare elements, whereas Emacs Lisp follows the
MacLisp tradition and uses equal
for these two functions.
The functions cl-member
and cl-assoc
use eql
,
as in Common Lisp. The standard Emacs Lisp functions memq
and
assq
use eq
, and the standard memql
uses eql
.