torch_tensor_multiply Function

  function torch_tensor_multiply(tensor1, tensor2) result(output)
    use, intrinsic :: iso_c_binding, only : c_associated
    type(torch_tensor), intent(in) :: tensor1  !! First tensor to be multiplied
    type(torch_tensor), intent(in) :: tensor2  !! Second tensor to be multiplied
    type(torch_tensor) :: output               !! Tensor to hold the product

    if (tensor1%get_device_type() /= tensor2%get_device_type()) then
      write(*,*) "Error :: cannot multiply tensors with different device types"
      stop 1
    end if

    if (.not. c_associated(output%p)) then
      call torch_tensor_empty(output, tensor1%get_rank(), tensor1%get_shape(), &
                              tensor1%get_dtype(), tensor1%get_device_type(), &
                              device_index=tensor1%get_device_index(), &
                              requires_grad=tensor1%requires_grad())
    end if
    call torch_tensor_multiply_c(output%p, tensor1%p, tensor2%p)
  end function torch_tensor_multiply