{"published":"2019-12-07 23:25:15","image_url":null,"width":"100%","categories":["C++","C++20"],"description":"\u4e00\u4eba C++20 Advent Calendar 2019 7\u65e5\u76ee\u306e\u8a18\u4e8b\u306b\u306a\u308a\u307e\u3059\u3002 auto\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u3088\u308b\u95a2\u6570\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u7c21\u6613\u5b9a\u7fa9 C++ 14 \u3067\u5b9f\u88c5\u3055\u308c\u305f\u30b8\u30a7\u30cd\u30ea\u30c3\u30af\u30e9\u30e0\u30c0\u3067\u306f\u5f15\u6570\u578b\u3068\u3057\u3066 auto \u304c\u4f7f\u3048\u307e\u3057\u305f\u3002 auto plus = [](auto a, auto b) { return a + b; }; plus(1, 2); // => 3 \u3053\u308c\u306b\u4f34\u3044 C++20 \u3067\u306f\u901a\u5e38\u306e\u95a2\u6570\u3067\u3082\u5f15\u6570\u578b\u306b auto \u304c\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 #include <iostream> auto plus(auto a, auto b) { return a + b; } // \u4ee5\u4e0b\u3068\u540c\u2026","provider_url":"https://hatena.blog","height":"190","author_url":"https://blog.hatena.ne.jp/osyo-manga/","version":"1.0","type":"rich","title":"\u3010\u4e00\u4eba C++20 Advent Calendar 2019\u3011auto\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u3088\u308b\u95a2\u6570\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u7c21\u6613\u5b9a\u7fa9\u30107\u65e5\u76ee\u3011","author_name":"osyo-manga","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2019%2F12%2F07%2F232515\" title=\"\u3010\u4e00\u4eba C++20 Advent Calendar 2019\u3011auto\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u3088\u308b\u95a2\u6570\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306e\u7c21\u6613\u5b9a\u7fa9\u30107\u65e5\u76ee\u3011 - 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>","blog_title":"Secret Garden(Instrumental)","provider_name":"Hatena Blog","url":"https://secret-garden.hatenablog.com/entry/2019/12/07/232515","blog_url":"https://secret-garden.hatenablog.com/"}