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42 lines
939 B
C++
42 lines
939 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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#include <cassert>
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namespace bh = boost::histogram;
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int main() {
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auto a = bh::make_histogram(bh::axis::regular<>(3, -1, 1, "axis 0"),
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bh::axis::integer<>(0, 2, "axis 1"));
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a(0.5, 1);
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std::string buf; // to hold 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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assert(b != a); // b is empty, a is not
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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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assert(b == a); // now b is equal to a
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}
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//]
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