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43 lines
1015 B
C++
43 lines
1015 B
C++
//[ guide_histogram_serialization
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#include <boost/archive/text_iarchive.hpp>
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#include <boost/archive/text_oarchive.hpp>
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#include <boost/histogram.hpp>
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#include <boost/histogram/serialization.hpp> // includes serialization code
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#include <sstream>
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namespace bh = boost::histogram;
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int main() {
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auto a = bh::make_static_histogram(bh::axis::regular<>(3, -1, 1, "r"),
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bh::axis::integer<>(0, 2, "i"));
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a(0.5, 1);
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std::string buf; // holds persistent representation
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// store histogram
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{
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std::ostringstream os;
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boost::archive::text_oarchive oa(os);
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oa << a;
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buf = os.str();
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}
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auto b = decltype(a)(); // create a default-constructed second histogram
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std::cout << "before restore " << (a == b) << std::endl;
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// prints: before restore 0
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// load histogram
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{
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std::istringstream is(buf);
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boost::archive::text_iarchive ia(is);
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ia >> b;
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}
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std::cout << "after restore " << (a == b) << std::endl;
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// prints: after restore 1
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}
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//]
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