{"author_url":"https://blog.hatena.ne.jp/yohhoy/","height":"190","title":"\u8907\u5408\u8981\u4ef6\u3068same_as/convertible_to\u30b3\u30f3\u30bb\u30d7\u30c8","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohhoy.hatenadiary.jp%2Fentry%2F20200825%2Fp1\" title=\"\u8907\u5408\u8981\u4ef6\u3068same_as/convertible_to\u30b3\u30f3\u30bb\u30d7\u30c8 - yohhoy\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","blog_url":"https://yohhoy.hatenadiary.jp/","description":"C++2a(C++20)\u30b3\u30f3\u30bb\u30d7\u30c8 requires\u5f0f(requires-expression) \u306b\u8a18\u8ff0\u3059\u308b \u8907\u5408\u8981\u4ef6(compound-requirement) \u3067\u306f\u300c\u3042\u308b\u5f0f\u306e\u8a55\u4fa1\u7d50\u679c\u304c\u7279\u5b9a\u30b3\u30f3\u30bb\u30d7\u30c8\u3092\u6e80\u305f\u3059\u3053\u3068\u300d\u3092\u5236\u7d04\u3059\u308b\u304c\u3001\u3053\u306e\u3068\u304d\u6a19\u6e96\u30b3\u30f3\u30bb\u30d7\u30c8std::same_as\uff0fstd::convertible_to\u3092\u9069\u5207\u306b\u4f7f\u3044\u5206\u3051\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u7279\u306b \u201c\u30c7\u30fc\u30bf\u30e1\u30f3\u30d0\u578b\u306e\u5236\u7d04\u201d \u306b\u306f\u6ce8\u610f\u3059\u308b\u3053\u3068\u3002\u4e0b\u8a18\u30b3\u30fc\u30c9\u306e\u30b3\u30f3\u30bb\u30d7\u30c8C0\u3067\u306f\u5f0ft.data\u304cint\u578b\u3078\u3068\u5909\u63db\u53ef\u80fd(convertible_to<int>)\u3068\u5236\u7d04\u3057\u3066\u3044\u308b\u304c\u3001\u30b3\u30f3\u30bb\u30d7\u30c8C1\u306e\u3088\u3046\u306bint\u578b\u3068\u7b49\u3057\u3044(same_as<int>)\u3068\u5236\u7d04\u3059\u308b\u3068\u2026","author_name":"yohhoy","published":"2020-08-25 00:00:00","categories":["C++","C++2a"],"image_url":null,"url":"https://yohhoy.hatenadiary.jp/entry/20200825/p1","version":"1.0","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","blog_title":"yohhoy\u306e\u65e5\u8a18","type":"rich"}