[Bug fortran/59198] [4.7/4.8/4.9 Regression] ICE on cyclically dependent polymorphic types

[paul.richard.thomas at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59198

--- Comment #8 from paul.richard.thomas at gmail dot com <paul.richard.thomas at gmail dot com> ---
Hi Tobias,

I tried giving rng_t a component to avoid that - it didn't work :-(

Cheers

Paul

On 22 February 2014 16:35, burnus at gcc dot gnu.org
<gcc-bugzilla@gcc.gnu.org> wrote:
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59198
>
> --- Comment #7 from Tobias Burnus <burnus at gcc dot gnu.org> ---
> (In reply to Paul Thomas from comment #6)
>>         if (src->rng._data != 0B)
>>           {
>>             dst->rng._data = (struct rng_t *) __builtin_malloc ((unsigned
>> long) src->rng._vptr->_size);
>>             src->rng._vptr->_copy (src->rng._data, dst->rng._data);
>>           }
>
> Could this be caused by a NULL pointer? Namely,
>
> Malloc returns: "If size is 0, either a null pointer or a unique  pointer  that
>  can  be successfully passed to free() shall be returned."
>
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