Il 11/02/2013 12:35, Michael Van Canneyt ha scritto:
On Mon, 11 Feb 2013, Giuliano Colla wrote:
Il 11/02/2013 09:21, Michael Van Canneyt ha scritto:
On Mon, 11 Feb 2013, Giuliano Colla wrote:
3) But if also the *path* to the file doesn't yet exist, it just
crashes without rising an exception that the user application can
handle somehow.
This is incorrect. It does tell you why it fails.
This is rather unpleasant, because the path provided by
GetAppConfigXx does usually exist, so you have an application which
99% of the times works just fine, and 1% of the times crashes
without telling why.
It tells you *exactly* why it 'crashes':
home: >./ti
An unhandled exception occurred at $000000000042AE87:
EFCreateError: Unable to create file "/tmp/path/to/nothing.txt"
$000000000042AE87
This is true only if you invoke the program from command line, which
is something the end user will never do.
That is not the problem of TIniFile, but of the application programmer.
TIniFile properly reports any error, as it should, with an exception.
It is always up to the application programmer to deal with such cases.
That this is sometimes tricky in a GUI application, cannot be helped.
It can be helped both by reducing the likelihood of the event, as you've
done, and by not suggesting to use in that case a try..finally construct
in a GUI application, which would mask the errors.
This suggestion comes historically from Delphi literature, but
fpc/Lazarus developers should never forget that they're smarter than
Delphi people. ;-)
Giuliano
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