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;; -*-theme-d-*-
;; Copyright (C) 2015 Tommi Höynälänmaa
;; Distributed under GNU General Public License version 3,
;; see file doc/GPL-3.
;; Expected results: translation and running OK
(define-proper-program (tests test321)
(import (standard-library core)
(standard-library string-utilities)
(standard-library console-io))
(declare my-substring (:procedure (<string> <integer> <integer>) <string>
pure))
(declare my-substring (:procedure (<string> <integer> <integer>) <string>
pure))
(define-simple-proc my-substring
(((str <string>) (i-start <integer>) (i-end <integer>))
<string>
force-pure)
(let-mutable ((result <string> ""))
(do ((i <integer> i-start (+ i 1))) ((>= i i-end))
(set! result (string-append result (string (string-ref str i)))))
result))
(define-main-proc (() <none> nonpure)
(console-display-line (my-substring "abcdef" 1 5))))
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