std::hash< NswAsBuilt::quadrupletIdentifier_t > Struct Reference

#include <Identifier.h>

Collaboration diagram for std::hash< NswAsBuilt::quadrupletIdentifier_t >:

Public Member Functions
std::size_t	operator() (const NswAsBuilt::quadrupletIdentifier_t &v) const noexcept

Detailed Description

Definition at line 100 of file MuonSpectrometer/MuonDetDescr/MuonNSWAsBuilt/MuonNSWAsBuilt/Identifier.h.

Member Function Documentation

operator()()

std::size_t std::hash< NswAsBuilt::quadrupletIdentifier_t >::operator() ( const NswAsBuilt::quadrupletIdentifier_t &  v ) const

inlinenoexcept

Definition at line 101 of file MuonSpectrometer/MuonDetDescr/MuonNSWAsBuilt/MuonNSWAsBuilt/Identifier.h.

                                                                                   {
      // Computing hash directly (avoid dependency to boost::hash_combine)
      std::hash<int> hasher;
      std::size_t h1 = hasher(v.stationName);
      std::size_t h2 = hasher(v.stationEta);
      std::size_t h3 = hasher(v.stationPhi);
      std::size_t h4 = hasher(v.multilayer);
      std::size_t ret = h1;
      ret ^= h2 + 0x9e3779b9 + (ret << 6) + (ret >> 2);
      ret ^= h3 + 0x9e3779b9 + (ret << 6) + (ret >> 2);
      ret ^= h4 + 0x9e3779b9 + (ret << 6) + (ret >> 2);
      return ret;
    }

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The documentation for this struct was generated from the following file:

• MuonSpectrometer/MuonDetDescr/MuonNSWAsBuilt/MuonNSWAsBuilt/Identifier.h