// check speed here!
    /*
	if (bamCore->flag & BAM_CINS) return true;
	if (bamCore->flag & BAM_CDEL) return true;
	if (bamCore->flag & BAM_CREF_SKIP) return true;
	if (bamCore->flag & BAM_CSOFT_CLIP) return true;
	if (bamCore->flag & BAM_CHARD_CLIP) return true;
	if (bamCore->flag & BAM_CPAD) return true;
     */