Hi,
I have a problem with Boost.Serialization. I have posted a question on a
forum but have not got any answer until now. Here is the reproduction of my
post (note: I'm using Boost 1.48, patch level 0).
I need to use Boost.Serialization to serialize floating-point numbers.
Since NaN and infinites cannot natively be read from an input stream, I am
trying to use the facets in boost/math/special_functions. I have tested
them on my platform using code similar to the examples we can find here:
http://www.boost.org/doc/libs/1_50_0/libs/math/doc/sf_and_dist/html/math_too...
However, the following code still fails to properly unserialize non-finite
floating point values (an exception is thrown with description "input
stream error").
#include <limits>
#include <locale>
#include <sstream>
#include
#include
#include
#include
struct Data {
float f;
Data() : f(std::numeric_limits<float>::quiet_NaN()) {}
template <class Archive>
void serialize(Archive & ar, unsigned const)
{
ar & BOOST_SERIALIZATION_NVP(f);
}
};
void test()
{
using namespace boost::archive;
Data d;
std::ostringstream oss;
xml_oarchive oar(oss);
oar << BOOST_SERIALIZATION_NVP(d);
//std::cout << oss.str() << std::endl;
std::istringstream iss(oss.str());
std::locale const new_loc(iss.getloc(), new
boost::math::nonfinite_num_get<char>);
iss.imbue(new_loc);
xml_iarchive iar(iss);
iar >> BOOST_SERIALIZATION_NVP(d);
std::cout << d.f << std::endl;
}
Am I doing something wrong? Is there a problem with my Boost version or my
platform? Is there a better solution? Any help would be greatly appreciated.
<END OF POST>
Thank you in advance for any suggestion.
Christophe Fuzier
