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I'm unable to print the return value of return-str.

; return-str.lisp (defun ask-for-input(str) (princ str) (let ((cmd (read-line))) cmd)) (defun return-str() (let ((data-str (ask-for-input "enter a string"))) (data-str))) (princ return-str)

Executing the code above with clisp, I got:

$ clisp return-str.lisp *** - EVAL: variable RETURN-STR has no value

Please help me on how to properly return a string from return-str.

Thank you.

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1 Answer 1

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Your parentheses are incorrect in a couple of places.

  • (data-str) should be replaced with data-str because data-str is not a function.
  • (princ return-str) should be replaced with (princ (return-str)) because return-str is a function.
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1 Comment

That was fast and fixed my problem! Thank you.

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