mask_t
s->root->mask == ~(mask_t) 0));
if (nodep1->mask != ~(mask_t) 0)
assert(nodep1->mask == ~(mask_t) 0);
#define MASK_BITS (sizeof(mask_t) * CHAR_BIT)
mask_t mask;
if (nodep->mask == ~(mask_t) 0 &&
nodep2->mask = ~(mask_t) 0;
next->mask == ~(mask_t) 0) {
mask_t leading = (mask_t)1 << start;
mask_t leading = (mask_t)1 << start;