Candidate_v1.6.1
ChemicalSpaceEvaluator
TremoloParser_IncreasedPrecision
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1 | /*
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2 | * ZeroInstanceInitializer.hpp
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3 | *
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4 | * Created on: Jun 12, 2016
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5 | * Author: heber
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6 | */
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7 |
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8 |
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9 | #ifndef ZEROINSTANCEINITIALIZER_HPP_
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10 | #define ZEROINSTANCEINITIALIZER_HPP_
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11 |
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12 | // include config.h
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13 | #ifdef HAVE_CONFIG_H
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14 | #include <config.h>
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15 | #endif
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16 |
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17 | #include <map>
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18 | #include <vector>
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19 |
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20 | #include "Fragmentation/Summation/ZeroInstance.hpp"
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21 |
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22 | /** This struct initializes zero instances for Summation and OrthogonalSummation
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23 | * to use as default set of base values.
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24 | *
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25 | * Template MapType gives us a boost::fusion::map of types that we iterate over to
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26 | * fill.
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27 | */
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28 | template <typename MapType>
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29 | struct ZeroInstanceInitializer
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30 | {
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31 | /** Constructor of class ZeroInstanceInitializer.
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32 | *
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33 | */
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34 | ZeroInstanceInitializer(
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35 | MapType &_ZeroInstances) :
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36 | ZeroInstances(_ZeroInstances)
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37 | {}
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38 |
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39 | /** Operator that fills the specific type \a MapValue to \a MapKey in its given
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40 | * maps and vectors with false and the default ZeroInstance<T>.
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41 | *
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42 | */
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43 | template <typename MapKey>
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44 | void operator()(MapKey &) {
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45 | // We retrieve the type of the member variable from the boost::fusion::map.
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46 | typedef typename boost::fusion::result_of::value_at_key<MapType, MapKey>::type MapValue;
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47 |
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48 | // fill vector with default value
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49 | const MapValue value = ZeroInstance<MapValue>();
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50 | boost::fusion::at_key<MapKey>(ZeroInstances) = value;
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51 | }
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52 |
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53 | //!> vector of all zero instance, to be filled by operator()
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54 | MapType &ZeroInstances;
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55 | };
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56 |
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57 |
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58 | #endif /* ZEROINSTANCEINITIALIZER_HPP_ */
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