15 lines
394 B
Racket
15 lines
394 B
Racket
; SPDX-License-Identifier: LGPL-3.0-or-later
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; Copyright (C) 2010-2021 Tony Garnock-Jones <tonygarnockjones@gmail.com>
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#lang racket/base
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(provide bytes-index)
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;; This should probably be in the standard library.
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(define (bytes-index bs b)
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(define len (bytes-length bs))
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(let loop ((i 0))
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(cond [(= i len) #f]
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[(eqv? (bytes-ref bs i) b) i]
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[else (loop (+ i 1))])))
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