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From: Thien-Thi Nguyen <ttn@gnuvola.org>
To: guile-devel@gnu.org
Subject: Re: Extremly slow for format & string-join
Date: Mon, 01 Apr 2013 12:37:38 +0200	[thread overview]
Message-ID: <871uaucz9p.fsf@zigzag.favinet> (raw)
In-Reply-To: <1364788801.4639.6.camel@Renee-desktop.suse> (Nala Ginrut's message of "Mon, 01 Apr 2013 12:00:01 +0800")

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() Nala Ginrut <nalaginrut@gmail.com>
() Mon, 01 Apr 2013 12:00:01 +0800

   (define (str* str n)
     (format #f "~{~a~}" (make-list n str)))

   (define (str* str n)
     (string-join (make-list n str) ""))

Here's another implementation, using SRFI 13 ‘xsubstring’:

(define (str* str n)
  (xsubstring str 0 (* n (string-length str))))

I wonder how it fares.

-- 
Thien-Thi Nguyen
GPG key: 4C807502

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  parent reply	other threads:[~2013-04-01 10:37 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-01  4:00 Extremly slow for format & string-join Nala Ginrut
2013-04-01  4:39 ` Daniel Hartwig
2013-04-01  5:13   ` Nala Ginrut
2013-04-01  5:35     ` Daniel Hartwig
2013-04-01  6:58       ` Nala Ginrut
2013-04-01  7:02         ` Daniel Hartwig
2013-04-01  8:36 ` Mark H Weaver
2013-04-01  9:52   ` Nala Ginrut
2013-04-01 12:55     ` Ian Price
2013-04-02 15:56   ` Ludovic Courtès
2013-04-01 10:37 ` Thien-Thi Nguyen [this message]
     [not found] <mailman.1257260.1364793213.854.guile-devel@gnu.org>
2013-04-01  6:59 ` Daniel Llorens
2013-04-01  7:40   ` Daniel Hartwig

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