enumerate.h

Go to the documentation of this file.

#ifndef LARCOREALG_COREUTILS_ENUMERATE_H
#define LARCOREALG_COREUTILS_ENUMERATE_H

// LArSoft libraries
#include "larcorealg/CoreUtils/counter.h"
#include "larcorealg/CoreUtils/zip.h"

// C/C++ libraries
#include <cstddef> // std::size_t
#include <utility> // std::forward()

namespace util {

  // -- BEGIN -- Enumerated iterations -----------------------------------------

  template <std::size_t Lead, typename... Iterables>
  auto enumerate(Iterables&&... iterables)
  {
    return zip<Lead + 1>(infinite_counter(), std::forward<Iterables>(iterables)...);
  }

  template <typename... Iterables>
  auto enumerate(Iterables&&... iterables)
  {
    return enumerate<0U>(std::forward<Iterables>(iterables)...);
  }

  // --- END -- Enumerated iterations ------------------------------------------

} // namespace util

#endif // LARCOREALG_COREUTILS_ENUMERATE_H