Array.h

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/*
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * Array.h
 * A macro for determining array size.
 */

#ifndef INCLUDE_OLA_BASE_ARRAY_H_
#define INCLUDE_OLA_BASE_ARRAY_H_

#include <stdint.h>

namespace ola {

template <typename T, size_t N>
  char (&ArraySizeHelper(T (&array)[N]))[N];

template <typename T, size_t N>
  char (&ArraySizeHelper(const T (&array)[N]))[N];


#define arraysize(array) (sizeof(ola::ArraySizeHelper(array)))


class ArrayDeleter {
 public:
  explicit ArrayDeleter(const uint8_t* data) : m_data(data) {}

  ~ArrayDeleter() {
    if (m_data) {
      delete[] m_data;
    }
  }

 private:
  const uint8_t* m_data;
};
}  // namespace ola
#endif  // INCLUDE_OLA_BASE_ARRAY_H_