diff options
| -rw-r--r-- | net/ricketyspace/sicp/one/fortyone.scm | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/ricketyspace/sicp/one/fortyone.scm b/net/ricketyspace/sicp/one/fortyone.scm new file mode 100644 index 0000000..df3baa9 --- /dev/null +++ b/net/ricketyspace/sicp/one/fortyone.scm @@ -0,0 +1,18 @@ +;;;; Under Creative Commons Attribution-ShareAlike 4.0 +;;;; International. See +;;;; <https://creativecommons.org/licenses/by-sa/4.0/>. + +(define-module (net ricketyspace sicp one fortyone) + #:export (double inc)) + +(define (double func) + (lambda (x) (func (func x)))) + +(define (inc x) (1+ x)) + +;;; GNU Guile REPL + +;;; scheme@(guile-user)> ,use (net ricketyspace sicp one fortyone) +;;; scheme@(guile-user)> (((double (double double)) inc) 5) +;;; $9 = 21 + |