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    • Equal
    • Equality-variants
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    Eql

    Test equality (of two numbers, symbols, or characters)

    (eql x y) is logically equivalent to (equal x y).

    Unlike equal, eql has a guard requiring at least one of its arguments to be a number, a symbol, or a character. Generally, eql is executed more efficiently than equal.

    For a discussion of the various ways to test against 0, See zero-test-idioms.

    Eql is a Common Lisp function. See any Common Lisp documentation for more information.

    Function: eql

    (defun eql (x y)
      (declare (xargs :guard (or (eqlablep x) (eqlablep y))))
      (equal x y))