{"blog_url":"https://osyo-manga.hatenadiary.org/","image_url":null,"categories":["C++"],"provider_url":"https://hatena.blog","version":"1.0","blog_title":"C++\u3067\u30b2\u30fc\u30e0\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","width":"100%","title":"C++ \u3067\u7c21\u5358\u306b\u30a2\u30af\u30bb\u30c3\u30b5\u3092\u66f8\u3051\u308b\u3088\u3046\u306b\u3057\u305f\u304b\u3063\u305f\u3051\u3069 Non-static data members \u3067 auto \u304c\u4f7f\u3048\u306a\u304f\u3066\u6b7b\u3093\u3060","description":"class X{ int value_ = 42; public: auto value = accessor(this, &X::value_); }; \u307f\u305f\u3044\u306a\u611f\u3058\u3067\u66f8\u304d\u305f\u304b\u3063\u305f\u3002 [\u30bd\u30fc\u30b9] template<typename Class, typename T> struct accessor_impl{ Class* class_; T Class::* member; T operator ()() const{ return class_ ->* member; } void operator ()(T const& t) const{ class_ ->* member = t\u2026","author_name":"osyo-manga","type":"rich","url":"https://osyo-manga.hatenadiary.org/entry/20140804/1407141059","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fosyo-manga.hatenadiary.org%2Fentry%2F20140804%2F1407141059\" title=\"C++ \u3067\u7c21\u5358\u306b\u30a2\u30af\u30bb\u30c3\u30b5\u3092\u66f8\u3051\u308b\u3088\u3046\u306b\u3057\u305f\u304b\u3063\u305f\u3051\u3069 Non-static data members \u3067 auto \u304c\u4f7f\u3048\u306a\u304f\u3066\u6b7b\u3093\u3060 - C++\u3067\u30b2\u30fc\u30e0\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","published":"2014-08-04 17:30:59","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/osyo-manga/","height":"190"}