if (!ferror(fp)) {
    fseek(fp, 0, SEEK_END);
    size_t sizeBytes = ftell(fp);
    fseek(fp, 0, SEEK_SET);
    fileBufferBytes.resize(sizeBytes);

    if (fread((char*)fileBufferBytes.data(), 1, sizeBytes, fp) == sizeBytes) 
      return;
  }

  if (!ferror(fp)) {
    fseek(fp, 0, SEEK_END);
    size_t sizeBytes = ftell(fp);
    fseek(fp, 0, SEEK_SET);
    fileBufferBytes.resize(sizeBytes);

    if (fread((char*)fileBufferBytes.data(), 1, sizeBytes, fp) == sizeBytes) {
      fclose(fp);
      return;
    }
  }