Vulkan-Hpp/snippets/StridedArrayProxy.hpp

  template <typename T>
  class StridedArrayProxy : protected ArrayProxy<T>
  {
  public:
    using ArrayProxy<T>::ArrayProxy;

    StridedArrayProxy( uint32_t count, T const * ptr, uint32_t stride ) VULKAN_HPP_NOEXCEPT
      : ArrayProxy<T>( count, ptr )
      , m_stride( stride )
    {
      VULKAN_HPP_ASSERT( sizeof( T ) <= stride );
    }

    using ArrayProxy<T>::begin;

    const T * end() const VULKAN_HPP_NOEXCEPT
    {
      return reinterpret_cast<T const *>( static_cast<uint8_t const *>( begin() ) + size() * m_stride );
    }

    using ArrayProxy<T>::front;

    const T & back() const VULKAN_HPP_NOEXCEPT
    {
      VULKAN_HPP_ASSERT( begin() && size() );
      return *reinterpret_cast<T const *>( static_cast<uint8_t const *>( begin() ) + ( size() - 1 ) * m_stride );
    }

    using ArrayProxy<T>::empty;
    using ArrayProxy<T>::size;
    using ArrayProxy<T>::data;

    uint32_t stride() const
    {
      return m_stride;
    }

  private:
    uint32_t m_stride = sizeof( T );
  };