Mailinglist Archive: yast-devel (50 mails)

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Re: [yast-devel] New libstorage: Returning NULL pointers vs. throwing exceptions
On Tue, Dec 01, 2015 at 09:21:26AM +0100, Ladislav Slezak wrote:
Dne 24.11.2015 v 16:45 Josef Reidinger napsal(a):
On Tue, 24 Nov 2015 15:47:24 +0100
Stefan Hundhammer <shundhammer@xxxxxxx> wrote:
I have to do different things. To stay with the current example: A
disk might have

- an old-style MS-DOS type partition table with 4 slots (where I need
to use an extended partition if I need any more partitions)

- a new style GPT partition table that can have any number of

- a filesystem directly on the disk device without any partition table

So for me I can see it as three types of partition table - msdos, gpt
and no. I do not see why is better to have

if gpt?
elsif msdos?
# no partition table case

If no partition is a valid use case (and it is as mentioned above) then it
not make sense to raise exception in that case. Exceptions should be used only
in error cases to handle *unexpected* things...

No, to quote Stroustrup: "exceptions are used to signal errors
that cannot be handled locally". Casting to a wrong type or
requesting a non-existing object is an error that cannot be
handled locally and thus must be signaled, e.g. by an exception.


Arvin Schnell, <aschnell@xxxxxxxx>
Senior Software Engineer, Research & Development
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284
(AG Nürnberg)
Maxfeldstraße 5
90409 Nürnberg
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