From: "Schirmer, Hartmut" <SchirmerH@Innovative-Systems.de>
To: "'Joerg Faschingbauer'" <jfasch@aon.at>
Cc: "'gcc@gcc.gnu.org'" <gcc@gcc.gnu.org>
Subject: RE: enumeration value ... not handled in switch
Date: Wed, 26 Sep 2001 09:03:00 -0000 [thread overview]
Message-ID: <1F5C7ECB324CD411B58600D0B723F181779422@oehhex01.becker.de> (raw)
Hi,
> This is bug #3780. I'll be cleaning up my patch a bit (although it
> won't become less dirty by doing so :-) and submit it. (This won't
> happen before two weeks, though.)
not really the same problem.
In my C code (not C++) I have
enum { A, B, C } x;
switch (x)
{
case A:
case B:
case C:
break;
default:
// strange
abort();
}
The default case is for runtime safty. The variable x may be in an
illegal state (not initialized, corupted, ...)
If I later add a D to the enum I won't get a warning because of
the default case. Changing the code to
switch (x)
{
case A:
case B:
case C:
break;
default attribute(silent):
// strange
abort();
}
enables the compile time analysis so I don't have to wait for
a runtime error.
Hartmut
next reply other threads:[~2001-09-26 9:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-26 9:03 Schirmer, Hartmut [this message]
2001-09-26 10:55 ` Joerg Faschingbauer
-- strict thread matches above, loose matches on Subject: below --
2001-09-24 1:04 Schirmer, Hartmut
2001-09-26 6:27 ` Joerg Faschingbauer
2005-01-11 6:08 ` Daniel Brockman
2005-01-11 8:20 ` Daniel Brockman
2005-01-11 14:28 ` hartmut.schirmer
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