message: fix ospExamples crash on exit
diff: -// Copyright 2009-2019 Intel Corporation
  +// Copyright 2009-2020 Intel Corporation
  // SPDX-License-Identifier: Apache-2.0
  #include "Distribution2D.ih"
  @@ -38,10 +38,12 @@ float Distribution2D_pdf(
  void Distribution2D_destroy(Distribution2D *uniform self)
  {
  + if (self != NULL) {
  delete[] self->cdf_x;
  delete[] self->cdf_y;
  delete self;
  }
  +}
  Distribution2D *uniform Distribution2D_create(
  const uniform vec2i size, float *uniform cdf_x, float *uniform f_y)
  