swab
++st.swab;
uint64_t swab; /* # of odd-length swab blocks */
if (st.swab) {
(unsigned long long)st.swab,
(st.swab == 1) ? "block" : "blocks");
(unsigned long long)st.swab);
if (st.swab != 1) ADDS("s");
if (st.swab) {
void swab(const void * __restrict, void * __restrict, ssize_t);
swab(a, r, i);