{"author_name":"yohhoy","version":"1.0","blog_url":"https://yohhoy.hatenadiary.jp/","published":"2022-09-17 00:00:00","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohhoy.hatenadiary.jp%2Fentry%2F20220917%2Fp1\" title=\"R.I.P. &quot;= {0}&quot; - yohhoy\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9eC\u306e\u6b21\u671fC2x(C23)\u8a00\u8a9e\u4ed5\u69d8\u3067\u306f\u3001\u7a7a\u306e\u30d6\u30ec\u30fc\u30b9{}\u3092\u7528\u3044\u305f\u914d\u5217\u30fb\u69cb\u9020\u4f53\u306e\u521d\u671f\u5316\u304c\u8a31\u5bb9\u3055\u308c\u308b\u3002C++\u3067\u306f\u5f53\u521d\u304b\u3089OK\u3002 typedef struct S { int m1, m2; } S; // C17:ill-formed / C2x:OK / C++:OK int arr0[10] = {}; S obj0 = {}; // C:OK / C++:OK int arr1[10] = { 0 }; S obj1 = { 0 }; C17\u73fe\u5728\u3067\u306f\u7a7a\u306e\u521d\u671f\u5316\u5b50\u30ea\u30b9\u30c8\u306f\u8a31\u3055\u308c\u305a\u3001\u5c11\u306a\u304f\u3068\u30821\u3064\u306e\u521d\u671f\u5316\u5b50\u3092\u8a18\u8ff0\u3059\u308b\uff08= {0}\uff09\u5fc5\u8981\u3042\u308a\u3002\u5bfe\u5fdc\u3059\u308b\u521d\u671f\u5316\u5b50\u306e\u306a\u3044\u914d\u5217\u8981\u7d20\u3084\u69cb\u9020\u4f53\u30e1\u2026","type":"rich","image_url":null,"width":"100%","author_url":"https://blog.hatena.ne.jp/yohhoy/","blog_title":"yohhoy\u306e\u65e5\u8a18","url":"https://yohhoy.hatenadiary.jp/entry/20220917/p1","title":"R.I.P. \"= {0}\"","categories":["C","C2x","C++","gcc","Clang"]}