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Subject: Re: [boost] [random] release notes?
From: Neal Becker (ndbecker2_at_[hidden])
Date: 2009-08-26 20:39:38


Steven Watanabe wrote:

> AMDG
>
> Neal Becker wrote:
>> My boost_random python wrapper broke, because it seems the signature of
>>
>> seed(result_type)
>>
>> is changed to
>>
>> seed (result_type const&)
>>
>>
>> Here's my code (note workaround):
>>
>> class_<rng_t> ("rng", "Mersenne Twister", bp::init<rng_t::result_type>(
>> (bp::arg
>> ("seed")=4357),
>>
>> "__init__(seed=4357)\n"
>> "Construct with
>> optional seed\n\n"
>> ":Parameters:\n"
>> " `seed` :
>> int\n"
>> " initial
>> seed\n"
>> ))
>> .def_pickle(mt_pickle_suite())
>> .def ("getstate", &mt_pickle_suite::getstate)
>> .def ("setstate", &mt_pickle_suite::setstate)
>> #if BOOST_VERSION >= 104000
>> .def ("seed", (void (rng_t::*)(rng_t::result_type const&))
>> (&rng_t::seed),
>> #else
>> .def ("seed", (void (rng_t::*)(rng_t::result_type))(&rng_t::seed),
>> #endif
>> "seed(x)\n"
>> "Reset generator using seed value x\n\n"
>> ":Parameters:\n"
>> " `x` : int\n"
>> " initial seed\n"
>> )
>>
>
> Hmm. Given that there was already a #if that would make the
> signature const result_type&, I didn't think it could do any harm
> to change the exact signature.
>

As you can see, it broke the compile of the above example. Only a usage
that is sensitive to the exact signature would break - but since my code did
break I think it would be good to mention in release notes.


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