lj_lib_checkopt   438 lib_base.c       int opt = lj_lib_checkopt(L, 1, LUA_GCCOLLECT,  /* ORDER LUA_GC* */
lj_lib_checkopt   312 lib_io.c         int opt = lj_lib_checkopt(L, 2, 1, "\3set\3cur\3end");
lj_lib_checkopt   355 lib_io.c         int opt = lj_lib_checkopt(L, 2, -1, "\4full\4line\2no");
lj_lib_checkopt   270 lib_os.c         int opt = lj_lib_checkopt(L, 2, 6,
lj_lib_checkopt    47 lj_lib.h       LJ_FUNC int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst);