fiveam

FiveAM testing framework for Common Lisp and test compilation behavior.

Programming Why member behaves differently in FiveAM tests (SBCL)

SBCL may intern string literals when compiling, so (member "foo" '("foo") :test #'eql) can match by identity. Use equal or string= for consistent results.

#common-lisp
#sbcl
#fiveam
#string-comparison
#equality
#testing

1 answer• 1 view

01/04/2026, 03:24 PM