{"published":"2016-06-14 22:13:51","provider_name":"Hatena Blog","categories":["C++"],"provider_url":"https://hatena.blog","height":"190","title":"C++17 \u306e std::void_t","description":"C++17 \u3067\u306f std::void_t \u3068\u3044\u3046\u30e1\u30bf\u95a2\u6570\u304c\u8ffd\u52a0\u3055\u308c\u308b\u3089\u3057\u3044\u3002 \u3053\u308c\u306f\u3001 template<typename...> using void_t = void; \u3068\u3001\u3044\u3046\u98a8\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002 [\u4f7f\u3044\u65b9] \u3053\u306e\u30e1\u30bf\u95a2\u6570\u306f\u6b21\u306e\u3088\u3046\u306b\u4f7f\u3046\u307f\u305f\u3044\u3002 template<typename, typename = std::void_t<> > struct has_type_member : std::false_type {}; template<typename T> struct has_type_member<T, std::void_t<typename T::type>> : s\u2026","url":"https://secret-garden.hatenablog.com/entry/2016/06/14/221351","blog_url":"https://secret-garden.hatenablog.com/","image_url":null,"author_url":"https://blog.hatena.ne.jp/osyo-manga/","author_name":"osyo-manga","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2016%2F06%2F14%2F221351\" title=\"C++17 \u306e std::void_t - 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>","version":"1.0","blog_title":"Secret Garden(Instrumental)","type":"rich","width":"100%"}