hash< Belle2::SubGraphID > Struct Reference

customized hash-function for being able to use unordered_map. More...

#include <SubGraphID.h>

Public Member Functions
std::size_t	operator() (const Belle2::SubGraphID &graphID) const
	Create Hash value from graphID.

Detailed Description

customized hash-function for being able to use unordered_map.

Definition at line 202 of file SubGraphID.h.

Member Function Documentation

operator()()

std::size_t operator() ( const Belle2::SubGraphID &  graphID ) const

inline

Create Hash value from graphID.

Parameters

graphID

: the subgraph ID

Returns

the hash value

Definition at line 207 of file SubGraphID.h.

    {
      std::size_t hashVal = 0;
      for (unsigned iD : graphID) {
        hashVal = std::hash<unsigned>()(iD) ^ hashVal;
        ++hashVal;
      }
      return hashVal;
    }

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

• tracking/trackFindingVXD/sectorMapTools/include/SubGraphID.h