vecpod.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef QONMODULE_VECPOD_H
#define QONMODULE_VECPOD_H
 
#include <vector>
 
template <class T>
struct vecpod_allocator {
  typedef T value_type;
  vecpod_allocator() noexcept = default;
  T* allocate(std::size_t n) { return std::allocator<T>().allocate(n); }
  void deallocate(T* p, std::size_t n) { std::allocator<T>().deallocate(p, n); }
  static void construct(T*) {}
  bool operator==(const vecpod_allocator&) const { return true; } // Stateless (no member, so std::vector does not store it), needed e.g. for the move assignment of std::vector
};
 
template <class T>
using vecpod = typename std::vector<T, vecpod_allocator<T>>;
// template <class T> using vecpod = typename std::vector<T>;
 
#endif // QONMODULE_VECPOD_H