* how to validate if a file exist ?
@ 2002-09-22 18:25 Dominic D'Apice
2002-09-22 21:12 ` Chad R. Meiners
0 siblings, 1 reply; 3+ messages in thread
From: Dominic D'Apice @ 2002-09-22 18:25 UTC (permalink / raw)
Hi all,
I know that i can validate if a file dont exist with this :
---------------------------------------------------
exception when ada.text_io.name_error =>
ada.text_io.put("file not found");
ada.text_io.skip_line;
---------------------------------------------------
BUT, HOW CAN I VALIDATE IF A FILE EXIST ?
(I did not found any exception about this way
)
thank to reply
Dominic
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: how to validate if a file exist ?
2002-09-22 18:25 how to validate if a file exist ? Dominic D'Apice
@ 2002-09-22 21:12 ` Chad R. Meiners
0 siblings, 0 replies; 3+ messages in thread
From: Chad R. Meiners @ 2002-09-22 21:12 UTC (permalink / raw)
begin
Open (...);
-- file exists and is open
Close (...);
exception
when name_error =>
-- file does not exist.
end;
You have two paths here so if you don't end up handling the exception the
file exists, right?
Please note that you shouldn't expect an exception for the existence of a
file. If you are taking a class, should discuss this with your instructor;
you seem to misunderstand how the exception mechanism is meant to be used.
"Dominic D'Apice" <dapiced@sympatico.ca> wrote in message
news:mailman.1032719103.21393.comp.lang.ada@ada.eu.org...
Hi all,
I know that i can validate if a file don't exist with this :
---------------------------------------------------
exception when ada.text_io.name_error =>
ada.text_io.put("file not found");
ada.text_io.skip_line;
---------------------------------------------------
BUT, HOW CAN I VALIDATE IF A FILE EXIST ?
(I did not found any exception about this way.)
thank to reply
Dominic
^ permalink raw reply [flat|nested] 3+ messages in thread
[parent not found: <000101c26265$622bc5d0$0101a8c0@dominic>]
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2002-09-22 18:25 how to validate if a file exist ? Dominic D'Apice
2002-09-22 21:12 ` Chad R. Meiners
[not found] <000101c26265$622bc5d0$0101a8c0@dominic>
2002-09-22 20:05 ` sk
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