[Boost-users] [serialization]Nans and infinity in wide xml archive

Subject: [Boost-users] [serialization]Nans and infinity in wide xml archive
From: Elizabeta (elizabeta.petreska_at_[hidden])
Date: 2017-07-03 09:23:19

Hi
I am using wide xml boost serialization archive. Because of the problem with
loading of nans and infinities I tried the nonfinite facet as in the code
snippet. This works, expect
it messes with the encoding of the xml arhive which is no longer UTF-8 like
before the using the facet, and I believe it is because of the no_codecvt
flag which is passed to the archive. But without this flag the loading of
nans/infinity does not work. How to use the facet and keep the wanted UTF-8
encoding ? 

    float d = std::numeric_limits<float>::quiet_NaN;
    {
        std::wofstream oss("C:\\test.xml");
        std::locale locale1(oss.getloc(), new
boost::math::nonfinite_num_put<wchar_t>);
     
        oss.imbue(locale1);
        xml_woarchive oar(oss, no_codecvt);
        oar << BOOST_SERIALIZATION_NVP(d);
    }

    {
        float d;
        std::wifstream iss("C:\\test.xml");       
        std::locale locale1(iss.getloc(), new
boost::math::nonfinite_num_get<wchar_t>);
        iss.imbue(locale1);
        xml_wiarchive iar(iss, no_codecvt);
        iar >> BOOST_SERIALIZATION_NVP(d);
        std::cout << d << std::endl;
    }

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