Fixed #5645: realloc return handling
unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, const unsigned char* image,
                               unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
{
  unsigned error;
  LodePNGState state;
  lodepng_state_init(&state);
  state.info_raw.colortype = colortype;
  state.info_raw.bitdepth = bitdepth;
  state.info_png.color.colortype = colortype;
  state.info_png.color.bitdepth = bitdepth;
  lodepng_encode(out, outsize, image, w, h, &state);
  error = state.error;
  lodepng_state_cleanup(&state);
  return error;
}

unsigned lodepng_encode_memory(unsigned char** out, size_t* outsize, const unsigned char* image,
                               unsigned w, unsigned h, LodePNGColorType colortype, unsigned bitdepth)
{
  unsigned error;
  LodePNGState state;
  lodepng_state_init(&state);
  state.info_raw.colortype = colortype;
  state.info_raw.bitdepth = bitdepth;
  state.info_png.color.colortype = colortype;
  state.info_png.color.bitdepth = bitdepth;
  lodepng_encode(out, outsize, image, w, h, &state);
  error = state.error;
  lodepng_state_cleanup(&state);
  return error;
}
