Eql is a Common Lisp function. See any Common Lisp documentation
for more information.
Major Section: PROGRAMMING
(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.