{"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshuzo-kino.hateblo.jp%2Fentry%2F2024%2F10%2F25%2F231608\" title=\"Ubuntu22LTS\u3067Rust\u8a00\u8a9e\u3092\u3084\u308b\u3000\u305d\u306e\uff14\uff1a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0 - Bye Bye Moore\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://shuzo-kino.hateblo.jp/","image_url":null,"provider_name":"Hatena Blog","title":"Ubuntu22LTS\u3067Rust\u8a00\u8a9e\u3092\u3084\u308b\u3000\u305d\u306e\uff14\uff1a\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0","url":"https://shuzo-kino.hateblo.jp/entry/2024/10/25/231608","width":"100%","height":"190","type":"rich","published":"2024-10-25 23:16:08","author_url":"https://blog.hatena.ne.jp/shuzo_kino/","description":"\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u5f37\u3044\u4eba\u305f\u3061\u304c\u7d76\u8cdb\u3059\u308bRust\u306e\u3059\u3054\u3044\u30c8\u30b3\u306e\u4e00\u3064\u3001\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002 \u5b9f\u969b\u306e\u3068\u3053\u308d match\u3067\u30a8\u30e9\u30fc\u306e\u6709\u7121\u306b\u3088\u308a\u6319\u52d5\u3092\u5207\u308a\u66ff\u3048\u3067\u304d\u308b\u3002 use std::error::Error; use std::fs::File; fn complex_operation() -> Result<(), Box<dyn Error>> { // \u30d5\u30a1\u30a4\u30eb\u64cd\u4f5c\u306e\u30a8\u30e9\u30fc let file = File::open(\"data.txt\")?; // io::Error \u2192 Box<dyn Error> // \u30d1\u30fc\u30b9\u306e\u30a8\u30e9\u30fc let number = \"123\".parse::<i\u2026","categories":["Rust"],"author_name":"shuzo_kino","version":"1.0","blog_title":"Bye Bye Moore"}