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(string-for-each, string-for-each-index): Add tests.
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@ -1021,3 +1021,21 @@
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(pass-if "upcase"
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(string=? "FOO" (string-map char-upcase "foo"))))
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(with-test-prefix "string-for-each"
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(pass-if "copy"
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(let* ((foo "foo")
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(bar (make-string (string-length foo)))
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(i 0))
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(string-for-each
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(lambda (c) (string-set! bar i c) (set! i (1+ i))) foo)
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(string=? foo bar)))
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(pass-if "index"
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(let* ((foo "foo")
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(bar (make-string (string-length foo))))
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(string-for-each-index
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(lambda (i) (string-set! bar i (string-ref foo i))) foo)
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(string=? foo bar))))
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