text: /*
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version 2
   * of the License, or (at your option) any later version.
   *
   * This program 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 General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
   */
  
  #ifndef __BLI_MEMORY_UTILS_CXX_H__
  #define __BLI_MEMORY_UTILS_CXX_H__
  
  /** \file
   * \ingroup bli
   */
  
  #include <memory>
  #include <algorithm>
  
  #include "BLI_utildefines.h"
  
  namespace BLI {
  
  using std::copy;
  using std::copy_n;
  using std::uninitialized_copy;
  using std::uninitialized_copy_n;
  using std::uninitialized_fill;
  using std::uninitialized_fill_n;
  
  template<typename T> void construct_default(T *ptr)
  {
    new (ptr) T();
  }
  
  template<typename T> void destruct(T *ptr)
  {
    ptr->~T();
  }
  
  template<typename T> void destruct_n(T *ptr, uint n)
  {
    for (uint i = 0; i < n; i++) {
      ptr[i].~T();
    }
  }
  
  template<typename T> void uninitialized_move_n(T *src, uint n, T *dst)
  {
    std::uninitialized_copy_n(std::make_move_iterator(src), n, dst);
  }
  
  template<typename T> void move_n(T *src, uint n, T *dst)
  {
    std::copy_n(std::make_move_iterator(src), n, dst);
  }
  
  template<typename T> void uninitialized_relocate(T *src, T *dst)
  {
    new (dst) T(std::move(*src));
    destruct(src);
  }
  
  template<typename T> void uninitialized_relocate_n(T *src, uint n, T *dst)
  {
    uninitialized_move_n(src, n, dst);
    destruct_n(src, n);
  }
  
  template<typename T> void relocate(T *src, T *dst)
  {
    *dst = std::move(*src);
    destruct(src);
  }
  
  template<typename T> void relocate_n(T *src, uint n, T *dst)
  {
    move_n(src, n, dst);
    destruct_n(src, n);
  }
  
  template<typename T, typename... Args> std::unique_ptr<T> make_unique(Args &&... args)
  {
    return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
  }
  
  template<typename T> struct DestructValueAtAddress {
    void operator()(T *ptr)
    {
      ptr->~T();
    }
  };
  
  template<typename T> using destruct_ptr = std::unique_ptr<T, DestructValueAtAddress<T>>;
  
  template<uint Size, uint Alignment> class alignas(Alignment) AlignedBuffer {
   private:
    /* Don't create an empty array. This causes problems with some compilers. */
    static constexpr uint ActualSize = (Size > 0) ? Size : 1;
    char m_buffer[ActualSize];
  
   public:
    void *ptr()
    {
      return (void *)m_buffer;
    }
  
    const void *ptr() const
    {
      return (const void *)m_buffer;
    }
  };
  
  }  // namespace BLI
  
  #endif /* __BLI_MEMORY_UTILS_CXX_H__ */
  