{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyamanetoshi.hatenablog.com%2Fentry%2F20110630%2F1309440707\" title=\" 6.828: Operating System Engineering (17) - yamanetoshi&#39;s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"yamanetoshi","url":"https://yamanetoshi.hatenablog.com/entry/20110630/1309440707","provider_name":"Hatena Blog","version":"1.0","categories":["kernel"],"title":" 6.828: Operating System Engineering (17)","published":"2011-06-30 22:31:47","blog_title":"yamanetoshi's diary","type":"rich","blog_url":"https://yamanetoshi.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/yamanetoshi/","width":"100%","provider_url":"https://hatena.blog","height":"190","description":"Exercise 3 cprintf \u95a2\u6570\u306e\u4e2d\u306e va_start(ap, fmt);\u3057\u305f\u6642\u70b9\u3067 fmt \u306f \"x %d, y %x, z %d\\n\" \u306a\u6587\u5b57\u5217\u306e\u5148\u982d\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u3057\u3066\u3044\u3066 ap \u306f\u4e8c\u756a\u76ee\u306e\u5f15\u6570\u306a\u30b9\u30bf\u30c3\u30af\u306e\u756a\u5730\u3092\u6307\u3057\u3066\u307e\u3059 \u6b21\u3002cons_putc, va_arg, and vcprintf \u306e\u9806\u3067\u4e91\u3005\u3068\u3044\u3046\u8a18\u8ff0\u304c\u3042\u308b\u306a\u3002\u3068\u308a\u3042\u3048\u305a stdarg.h \u306a\u30de\u30af\u30ed\u306f\u304a\u304a\u3088\u305d\u7406\u89e3\u3067\u304d\u305f\u306e\u3067\u30b9\u30eb\u30fc\u3002"}