OPT_NORESOLVE
opts ^= OPT_NORESOLVE;
opts |= OPT_NORESOLVE;
opts |= OPT_NORESOLVE;
int opts = OPT_NORESOLVE;
opts &= ~OPT_NORESOLVE;
opts |= OPT_NORESOLVE;
if ((opts & OPT_NORESOLVE) == 0) {
if ((opts & OPT_NORESOLVE) == 0) {
if ((opts & OPT_NORESOLVE) == 0)