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cl-pushnew manual clarification

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* doc/misc/cl.texi (Modify Macros): Don't claim that cl-pushnew
uses eql.
(Lists as Sets): Mention that eql is the default comparison function.
This commit is contained in:
Lars Ingebrigtsen 2020-12-09 14:52:49 +01:00
parent c47e6aa1f4
commit 445ab5cce9
1 changed files with 7 additions and 6 deletions
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doc/misc/cl.texi
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@ -1097,10 +1097,9 @@ by @var{x} if specified.
@defmac cl-pushnew x place @t{&key :test :test-not :key}
This macro inserts @var{x} at the front of the list stored in
@var{place}, but only if @var{x} was not @code{eql} to any
existing element of the list. The optional keyword arguments
are interpreted in the same way as for @code{cl-adjoin}.
@xref{Lists as Sets}.
@var{place}, but only if @var{x} isn't present in the list already.
The optional keyword arguments are interpreted in the same way as for
@code{cl-adjoin}. @xref{Lists as Sets}.
@end defmac
@defmac cl-shiftf place@dots{} newvalue
@ -3796,8 +3795,10 @@ This is a destructive version of @code{cl-sublis}.
@section Lists as Sets
@noindent
These functions perform operations on lists that represent sets
of elements.
These functions perform operations on lists that represent sets of
elements. All these functions (unless otherwise specified) default to
using @code{eql} as the test function, but that can be modified by the
@code{:test} parameter.
@defun cl-member item list @t{&key :test :test-not :key}
This function searches @var{list} for an element matching @var{item}.