JaggedVecImpl.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
/*
 * Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration.
 */
 
 
#ifndef ATHCONTAINERS_JAGGEDVECIMPL_H
#define ATHCONTAINERS_JAGGEDVECIMPL_H
 
 
#include <cstddef>
#include <cstdint>
 
 
namespace SG {
 

class JaggedVecEltBase
{
public:
  using index_type = uint32_t;
 

  JaggedVecEltBase () = default;
 

  JaggedVecEltBase (index_type end);
 

  index_type begin (size_t elt_ndx) const;
 

  index_type end() const;
 

  size_t size (size_t elt_ndx) const;
 

  bool operator== (const JaggedVecEltBase& other) const;
 

  struct Shift
  {
    Shift (int offs);

    void operator() (JaggedVecEltBase& e) const;
 
 
  private:
    int m_offs;
  };
 
 
private:
  friend struct Shift;

  index_type m_end = 0;
};
 

template <class T>
class JaggedVecElt
  : public JaggedVecEltBase
{
public:
  using JaggedVecEltBase::JaggedVecEltBase;
};
 
 
} // namespace SG
 
 
#include "AthContainers/JaggedVecImpl.icc"
 
 
#endif // not ATHCONTAINERS_JAGGEDVECIMPL_H