841     unsigned char *isdst = NULL;  in load_data()  local
947     isdst = PyMem_Malloc(self->num_ttinfos * sizeof(unsigned char));  in load_data()
949     if (utcoff == NULL || isdst == NULL) {  in load_data()
973             isdst[i] = (unsigned char)isdst_with_error;  in load_data()
983     utcoff_to_dstoff(trans_idx, utcoff, dstoff, isdst, self->num_transitions,  in load_data()
1017         if (!isdst[i]) {  in load_data()
1142     if (isdst != NULL) {  in load_data()
1143         PyMem_Free(isdst);  in load_data()
1351     uint8_t isdst;  in find_tzrule_ttinfo()  local
1371         isdst = (ts >= start) && (ts < end);  in find_tzrule_ttinfo()
1374         isdst = (ts < end) || (ts >= start);  in find_tzrule_ttinfo()
1377     if (isdst) {  in find_tzrule_ttinfo()
1406     uint8_t isdst;  in find_tzrule_ttinfo_fromutc()  local
1412         isdst = (ts >= start) && (ts < end);  in find_tzrule_ttinfo_fromutc()
1415         isdst = (ts < end) || (ts >= start);  in find_tzrule_ttinfo_fromutc()
1433     if (isdst) {  in find_tzrule_ttinfo_fromutc()