iww https://blog.hatena.ne.jp/iww/ 揮発性のメモ２ https://iww.hateblo.jp/ C C99だと仕様。それより前は知らん。 6.7.8 Initialization ・・・ 10 If an object that has automatic storage duration is not initialized explicitly, its value is indeterminate. If an object that has static storage duration is not initialized explicitly, then: — if it has pointer type, it is initialized to a null pointer;… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fiww.hateblo.jp%2Fentry%2F20111202%2F1322806025" title="配列の初期化時に後ろがゼロで埋められるのは仕様 - 揮発性のメモ２" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2011-12-02 15:07:05 rich https://iww.hateblo.jp/entry/20111202/1322806025 1.0 100%