VS_NUM_STYPES
if (vss[i].stype == 0 || vss[i].stype >= VS_NUM_STYPES ||
const char *vs_stype2name[VS_NUM_STYPES] = {
const char *vs_stype2desc[VS_NUM_STYPES] = {
extern const char *vs_stype2name[VS_NUM_STYPES];
extern const char *vs_stype2desc[VS_NUM_STYPES];