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From: | Ludovic Courtès |
Subject: | Re: Uploading Word documents, PDFs, PNG files etc |
Date: | Tue, 12 May 2009 12:33:16 +0200 |
User-agent: | Gnus/5.13 (Gnus v5.13) Emacs/23.0.90 (gnu/linux) |
Sebastian Tennant <address@hidden> writes: > (define (upload name) > (and=> (uploads name) car)) [...] > P.S. Documentation bug - the procedure 'and=>' is missing from the > manual. What's the difference between the way the upload procedure > is written above and simply: > > (define (upload name) > (car (uploads name))) Using `and=>', `upload' returns `#f' if `uploads' returns `#f'. Thanks, Ludo'.
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