}
if (der - received_tag != kKCAESGCMTagSize) {
- KCJoiningErrorCreate(kDERUnknownEncoding, error, @"Unexpected tag size: %d", der - received_tag);
+ KCJoiningErrorCreate(kDERUnknownEncoding, error, @"Unexpected tag size: %ld", (long)(der - received_tag));
return nil;
}