Call_once on 111qqz's bloghttps://111qqz.com/en/tags/call_once/Recent content in Call_once on 111qqz's blogHugo -- gohugo.ioen© 2015-2026 111qqzThu, 20 Sep 2018 12:47:46 +0000std::call_once && std::once_flag noteshttps://111qqz.com/en/post/%E5%B7%A5%E7%A8%8B/cpp/2018-09-20-call_once-once_flag-notes/Thu, 20 Sep 2018 12:47:46 +0000https://111qqz.com/en/post/%E5%B7%A5%E7%A8%8B/cpp/2018-09-20-call_once-once_flag-notes/<p>多线程保护数据时，一种较为特殊的情况是只需要保护资源的初始化。</p>