nwam_loc_validate
verr = nwam_loc_validate(loc_h, &errprop);
ret = nwam_loc_validate(loc_h, &errprop);
extern nwam_error_t nwam_loc_validate(nwam_loc_handle_t, const char **);
if ((err = nwam_loc_validate(loch, NULL)) != NWAM_SUCCESS) {
if ((err = nwam_loc_validate(loch, NULL)) != NWAM_SUCCESS)