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Groups > comp.sys.acorn.programmer > #5556

Re: Testing for the presence of a file

From Graham Pickles <graham@durain.uk>
Newsgroups comp.sys.acorn.programmer
Subject Re: Testing for the presence of a file
Date 2018-10-09 09:33 +0100
Organization Aioe.org NNTP Server
Message-ID <9701324457.graham@graham.durain.uk> (permalink)
References <70cfbe4357.graham@graham.durain.uk> <5743ca65b9UCEbin@tiscali.co.uk>

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In message <5743ca65b9UCEbin@tiscali.co.uk>
          "John Williams (News)" <UCEbin@tiscali.co.uk> wrote:

>In article <70cfbe4357.graham@graham.durain.uk>,
>   Graham Pickles <graham@durain.uk> wrote:
>
>> What is the simplest method of determining
>> in a Basic (RiscOs 4.02) program whether a named file exists in a
>> particular directory?
>
>This simple function will not only tell you if it's there or not, but if it
>is whether it's a file, directory, or image file:
>
>  :
>  DEF FN_objectpresent(fullpath$)
>  SYS"OS_File",23,fullpath$ TO present%,,,,,,objftype%
>  =present%
>  REM case present% of 0=absent 1=file 2=directory 3=image file
>  :
>
>I use it quite a lot!
>
>John
>
Many thanks. Of course. You reminded me. This is the method I have
adopted and it's ideal.

Regards,

-- 
Graham Pickles
I have not failed. I've just found 10000 ways that won't work. (Thomas
Edison)

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Thread

Testing for the presence of a file Graham Pickles <graham@durain.uk> - 2018-10-08 12:35 +0100
  Re: Testing for the presence of a file Alan Adams <alan@adamshome.org.uk> - 2018-10-08 12:50 +0100
    Re: Testing for the presence of a file Bob Latham <bob@sick-of-spam.invalid> - 2018-10-08 13:17 +0100
      Re: Testing for the presence of a file Alan Adams <alan@adamshome.org.uk> - 2018-10-08 14:24 +0100
      Re: Testing for the presence of a file Bob Latham <bob@sick-of-spam.invalid> - 2018-10-08 14:22 +0100
  Re: Testing for the presence of a file "John Williams (News)" <UCEbin@tiscali.co.uk> - 2018-10-08 14:42 +0100
    Re: Testing for the presence of a file Graham Pickles <graham@durain.uk> - 2018-10-09 09:33 +0100
      Re: Testing for the presence of a file "John Williams (News)" <UCEbin@tiscali.co.uk> - 2018-10-09 23:59 +0100
  Re: Testing for the presence of a file "John Williams (News)" <UCEbin@tiscali.co.uk> - 2018-10-08 14:50 +0100
    Re: Testing for the presence of a file "John Williams (News)" <UCEbin@tiscali.co.uk> - 2018-10-08 14:53 +0100
    Re: Testing for the presence of a file jgh@mdfs.net - 2018-10-21 19:57 -0700
      Re: Testing for the presence of a file jgh@mdfs.net - 2018-10-21 20:00 -0700
  Re: Testing for the presence of a file jgh@mdfs.net - 2018-10-21 19:55 -0700
    Re: Testing for the presence of a file Matthew Phillips <spam2011m@yahoo.co.uk> - 2018-10-23 07:43 +0100

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