make_shared.h

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/* ----------------------------------------------------------------------------

 * GTSAM Copyright 2020, Georgia Tech Research Corporation,
 * Atlanta, Georgia 30332-0415
 * All Rights Reserved
 * Authors: Frank Dellaert, et al. (see THANKS for the full author list)

 * See LICENSE for the license information

 * -------------------------------------------------------------------------- */

#pragma once

#include <gtsam/base/types.h>

#include <Eigen/Core>

#include <boost/make_shared.hpp>

#include <type_traits>

namespace gtsam {
  template<bool B, class T = void>
  using enable_if_t = typename std::enable_if<B, T>::type;
}

namespace gtsam {

  template<typename T, typename ... Args>
  gtsam::enable_if_t<needs_eigen_aligned_allocator<T>::value, boost::shared_ptr<T>> make_shared(Args &&... args) {
    return boost::allocate_shared<T>(Eigen::aligned_allocator<T>(), std::forward<Args>(args)...);
  }

  template<typename T, typename ... Args>
  gtsam::enable_if_t<!needs_eigen_aligned_allocator<T>::value, boost::shared_ptr<T>> make_shared(Args &&... args) {
    return boost::make_shared<T>(std::forward<Args>(args)...);
  }

}