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Postings from May 2010
On Tue, May 11, 2010 at 09:57, Nicholas Clark <nick@ccl4.org> wrote:
> On Tue, May 11, 2010 at 11:53:14AM -0400, Eric Brine wrote:
>> On Tue, May 11, 2010 at 11:38 AM, Nicholas Clark <nick@ccl4.org> wrote:
>>
>> > > I suspect that the reader/rejector assumed that the indexes for notnull()
>> > > start at 0. They start at 1. If you make that mistake, you would conclude
>> > > (wrongly) what the rejector did.
>> >
>> > Gah. I think I'm wrong here. I'm not convinced that the test case is
>> > correct.
>> >
>>
>> What you say matches the docs:
>>
>> extern void *
>> my_memcpy (void *dest, const void *src, size_t len)
>> __attribute__((nonnull (1, 2)));
>>
>> causes the compiler to check that, in calls to my_memcpy, arguments dest and
>> src are non-null.
>>
>> so nonnull(2) would apply to o, the 2nd arg.
>
> But the bug (in op.c) was when the final (3rd) argument oright was annotated
> as non-null, but gcc was treating the 2nd argument, o, as non-null.
I think you mean the reverse: o is marked nonnull (and is not null),
oright is not annotated and is NULL. Either way it same gcc bug. =)
--
STATIC OP* S_is_inplace_av(pTHX_ OP* o, OP* oright)
__attribute__nonnull__(pTHX_1);
Program received signal SIGSEGV, Segmentation fault.
S_is_inplace_av (o=<value optimized out>, oright=<value optimized
out>, my_perl=<value optimized out>, o=<value optimized out>,
oright=<value optimized out>)
at op.c:8418
8418 (oright->op_type != OP_RV2AV && oright->op_type != OP_PADAV)
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