{"author_url":"https://blog.hatena.ne.jp/osyo-manga/","blog_url":"https://secret-garden.hatenablog.com/","provider_name":"Hatena Blog","author_name":"osyo-manga","height":"190","version":"1.0","description":"\u4e45\u3005\u306b\u66f8\u3044\u3066\u307f\u305f\u3089\u5168\u7136\u66f8\u304d\u65b9\u899a\u3048\u3066\u306a\u304b\u3063\u305f\u306e\u3067\u899a\u66f8\u3002 template<typename T> struct sfinae_helper{ typedef void type; }; template<typename T, typename U = void> struct has_xxx{ static bool const value = false; }; template<typename T> struct has_xxx<T, typename sfinae_helper<typename T::xxx>::type>{ static bool const value = tru\u2026","type":"rich","categories":["C++"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2015%2F11%2F05%2F202113\" title=\"C++03 \u3067 has_xxx \u306e\u5b9f\u88c5 - 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>","published":"2015-10-09 20:21:13","url":"https://secret-garden.hatenablog.com/entry/2015/11/05/202113","blog_title":"Secret Garden(Instrumental)","provider_url":"https://hatena.blog","width":"100%","title":"C++03 \u3067 has_xxx \u306e\u5b9f\u88c5","image_url":null}