{"published":"2016-02-05 21:33:25","author_url":"https://blog.hatena.ne.jp/tmtms/","provider_url":"https://hatena.blog","blog_url":"https://blog.tmtms.net/","url":"https://blog.tmtms.net/entry/2016/02/05/crystal-binary","height":"190","provider_name":"Hatena Blog","blog_title":"tmtms \u306e\u30e1\u30e2","image_url":null,"categories":["Crystal"],"description":"\u524d\u56de\u3082\u66f8\u3044\u305f\u3088\u3046\u306b Crystal \u306e String \u306e\u30a8\u30f3\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u306f UTF-8 \u56fa\u5b9a\u3067\u3059\u3002\u306a\u306e\u3067 Ruby \u306e\u3088\u3046\u306b\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092 String \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u6271\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002 \u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u306f Pointer, Slice, MemoryIO \u3067\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002 \u81ea\u5206\u3067\u3082\u3088\u304f\u308f\u304b\u3063\u3066\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u81ea\u5206\u7528\u306e\u30e1\u30e2\u3068\u3057\u3066\u307e\u3068\u3081\u3066\u304a\u304d\u307e\u3059\u3002 Pointer \u6700\u3082\u4f4e\u30ec\u30a4\u30e4\u30fc\u306e\u30af\u30e9\u30b9\u3067\u3059\u3002C \u306e\u30dd\u30a4\u30f3\u30bf\u3068\u540c\u3058\u3067\u3059\u3002 p = Pointer(UInt8).malloc(10) # 10\u30d0\u30a4\u30c8\u7372\u5f97 p[0] = 0xAAu8 p[1] = 'X'.ord.to_u8 x = 123\u2026","title":"Crystal \u3067\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092\u6271\u3046","author_name":"tmtms","type":"rich","version":"1.0","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fblog.tmtms.net%2Fentry%2F2016%2F02%2F05%2Fcrystal-binary\" title=\"Crystal \u3067\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092\u6271\u3046 - tmtms \u306e\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}