{"url":"https://yohhoy.hatenadiary.jp/entry/20230609/p1","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","blog_title":"yohhoy\u306e\u65e5\u8a18","published":"2023-06-09 00:00:00","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyohhoy.hatenadiary.jp%2Fentry%2F20230609%2Fp1\" title=\"std::expected\u3068\u5f37\u3044\u4f8b\u5916\u5b89\u5168\u6027 - 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>","version":"1.0","type":"rich","description":"C++2b(C++23)\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u8ffd\u52a0\u3055\u308c\u308bstd::expected<T, E>\u306e\u4f8b\u5916\u5b89\u5168\u6027\u306b\u3064\u3044\u3066\u30e1\u30e2\u3002\u6b63\u5e38\u578bT\uff0f\u30a8\u30e9\u30fc\u578bE\u3092\u5024(value)\u3068\u3057\u3066\u53d6\u308a\u6271\u3044\u3064\u3064\u300c\u5f37\u3044\u4f8b\u5916\u5b89\u5168\u6027(Strong exception safety)\u300d\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u3001\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u4e00\u5b9a\u306e\u5236\u7d04\u304c\u8ab2\u3055\u308c\u308b\u3002 \u30e0\u30fc\u30d6\uff0f\u30b3\u30d4\u30fc\u4ee3\u5165\uff1aT\u3082\u3057\u304f\u306fE\u306e\u3044\u305a\u308c\u304b\u304c \u201cnothrow\u30e0\u30fc\u30d6\u69cb\u7bc9\u53ef\u80fd\u201d \u3067\u3042\u308b\u3053\u3068 \u6b63\u5e38\u578bU\u4ee3\u5165\uff1aT\u304c \u201cnothrow\u69cb\u7bc9\u53ef\u80fd\u201d \u307e\u305f\u306f\u3001T\u3082\u3057\u304f\u306fE\u306e\u3044\u305a\u308c\u304b\u304c \u201cnothrow\u30e0\u30fc\u30d6\u69cb\u7bc9\u53ef\u80fd\u201d \u3067\u3042\u308b\u3053\u3068 \u30a8\u30e9\u30fc\u578bG\u4ee3\u5165\uff1aE\u304c \u201cnothrow\u69cb\u7bc9\u53ef\u80fd\u201d \u307e\u305f\u306f\u3001T\u3082\u3057\u304f\u306fE\u306e\u3044\u305a\u308c\u2026","image_url":null,"author_url":"https://blog.hatena.ne.jp/yohhoy/","width":"100%","height":"190","blog_url":"https://yohhoy.hatenadiary.jp/","author_name":"yohhoy","title":"std::expected\u3068\u5f37\u3044\u4f8b\u5916\u5b89\u5168\u6027","categories":["C++","C++2b"]}