luaL_buffinit
luaL_buffinit(L, B);
luaL_buffinit(L, &b);
LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
luaL_buffinit(L,&b);
luaL_buffinit(L, &b);
luaL_buffinit(L, &b);
luaL_buffinit(L, &b);