Re: problem with -Wunreachable-code
Re: problem with -Wunreachable-code
- Subject: Re: problem with -Wunreachable-code
- From: Eric Albert <email@hidden>
- Date: Sat, 22 Jul 2006 13:05:54 -0700
On Jul 22, 2006, at 12:01 PM, Sean McBride wrote:
Eric Albert (email@hidden) on 2006-07-21 23:54 said:
I have been going through that doc as well, and -Wunreachable-code
also
gives a warning everytime assert() from assert.h is used.
Yep. Kind of annoying, huh? But the assert() warning has been fixed
for a future release, so hopefully you'll be able to use -
Wunreachable-code more often eventually.
Great! Is it something that I can fix myself in the meantime by
altering my assert.h header?
Change this line:
#define __assert(e, file, line) \
((void)printf ("%s:%u: failed assertion `%s'\n", file, line, e),
abort(), 0)
to
#define __assert(e, file, line) \
((void)printf ("%s:%u: failed assertion `%s'\n", file, line, e),
abort())
Change this line:
#define __assert(e, file, line) \
(__eprintf ("%s:%u: failed assertion `%s'\n", file, line, e), 0)
to
#define __assert(e, file, line) \
__eprintf ("%s:%u: failed assertion `%s'\n", file, line, e)
I hope <rdar://4115550> is fixed also, all someone needs to do is
add 6
characters to assert.h to fix it. :)
It's been fixed.
Apple's headers are full of warnings in general BTW.
If you find warnings in Apple's headers when compiling C99 code,
please file bugs. We're always interested in hearing about those
cases. -pedantic is an exception to that, by the way; I'm
disappointed that the static code analysis article recommended it.
Well, I'm hesitant to do that. A year ago I spent an afternoon filing
radars for warnings and errors in Apple's headers and the vast
majority
are not fixed. For <rdar://4056291> I even supplied a patch! Perhaps
since the bugs are CodeWarrior-related, they are ignored?
For fairly obvious reasons, CodeWarrior-specific changes are not a
terribly high priority for us any more....
-Eric
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