if (g_is_by_qname) {
int t = strnum_cmp(bam1_qname(a), bam1_qname(b));
return (t < 0 || (t == 0 && (((uint64_t)a->core.tid<<32|(a->core.pos+1)) < ((uint64_t)b->core.tid<<32|(b->core.pos+1)))));
if (g_is_by_qname) {
int t = strnum_cmp(bam1_qname(a), bam1_qname(b));
return (t < 0 || (t == 0 && (((uint64_t)a->core.tid<<32|(a->core.pos+1)) < ((uint64_t)b->core.tid<<32|(b->core.pos+1)))));