{"author_name":"osyo-manga","type":"rich","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2015%2F08%2F24%2F000000\" title=\"C++ \u3067\u306f void* \u304b\u3089\u4ed6\u306e\u30dd\u30a4\u30f3\u30bf\u578b\u3078\u6697\u9ed9\u7684\u306b\u5909\u63db\u3067\u304d\u306a\u3044 - Secret Garden(Instrumental)\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"\u4eca\u307e\u3067\u77e5\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u899a\u66f8\u3002 C++ \u3067\u306f void* \u578b\u304b\u3089\u4ed6\u306e\u30dd\u30a4\u30f3\u30bf\u578b\u3078\u6697\u9ed9\u7684\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3002 \u306a\u306e\u3067\u3001\u6b21\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u306f\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002 void* vp; // error: cannot initialize a variable of type 'int *' with an lvalue of type 'void *'; int* p = vp; \u3053\u308c\u306f C++ \u306e\u4ed5\u69d8\u3067\u3042\u3063\u3066\u3001C \u8a00\u8a9e\u3067\u3042\u308c\u3070\u554f\u984c\u306a\u304f\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 \u306a\u306e\u3067\u3001NULL \u306e\u5b9a\u7fa9\u3082 C \u8a00\u8a9e\u3067\u3042\u308c\u3070 #define NULL ((void*)0) \u3068\u3001\u3044\u3046\u98a8\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u4e8b\u304c\u591a\u3044\u304c\u3001C++ \u3060\u3068\u2026","image_url":null,"blog_url":"https://secret-garden.hatenablog.com/","provider_url":"https://hatena.blog","url":"https://secret-garden.hatenablog.com/entry/2015/08/24/000000","width":"100%","categories":["C++"],"author_url":"https://blog.hatena.ne.jp/osyo-manga/","title":"C++ \u3067\u306f void* \u304b\u3089\u4ed6\u306e\u30dd\u30a4\u30f3\u30bf\u578b\u3078\u6697\u9ed9\u7684\u306b\u5909\u63db\u3067\u304d\u306a\u3044","published":"2015-08-24 00:00:00","version":"1.0","blog_title":"Secret Garden(Instrumental)","provider_name":"Hatena Blog"}