Function luaL_checkunsigned

third-party/lua-5.2.4/src/lauxlib.c:398–404

LUALIB_API lua_Unsigned luaL_checkunsigned (lua_State *L, int narg) {
  int isnum;
  lua_Unsigned d = lua_tounsignedx(L, narg, &isnum);
  if (!isnum)
    tag_error(L, narg, LUA_TNUMBER);
  return d;
}


LUALIB_API lua_Integer luaL_optinteger (lua_State *L, int narg,