message: Removed unnecessay casting
diff: return NULL;
  for (NSInteger i = 0; i < strings.count; i++) {
  - cStrings[i] = (char *)[TFLCommonUtils
  + cStrings[i] = [TFLCommonUtils
  mallocWithSize:([strings[i] lengthOfBytesUsingEncoding:NSUTF8StringEncoding] + 1) *
  sizeof(char)
  error:error];
  