{"published":"2008-04-25 00:33:03","provider_name":"Hatena Blog","width":"100%","blog_url":"https://boxnos.hatenablog.com/","description":"\u3046\u3045\u3093\u3002SICP\u306e\u8aac\u660e\u304c\u306a\u3093\u304b\u7d0d\u5f97\u3044\u304b\u306a\u3044\u3002 \u554f\u984c 3.10 make-withdraw\u306elet\u3092lambda\u306b\u66f8\u304d\u76f4\u3057\u3066\u3001\u74b0\u5883\u30e2\u30c7\u30eb\u3092\u66f8\u304d\u76f4\u3059\u554f\u984c\u3002 (define (make-withdraw internal-amount) ((lambda (balance) (lambda (amount) (if (>= balance amount) (begin (set! balance amount) amount) (error \"Insufficient funds.\")))) internal-amount)) lambda\u306e\u5f15\u6570\u304c\u74b0\u5883\u3092\u751f\u307f\u51fa\u3059\u3093\u3060\u304b\u3089\u3001make-withdraw\u3092\u2026","type":"rich","height":"190","image_url":null,"version":"1.0","author_name":"tanakaBox","provider_url":"https://hatena.blog","blog_title":"\u30dc\u30af\u30ce\u30b9","title":" SICP\u3092\u8aad\u3080(99) \u554f\u984c 3.10 - \u5c40\u6240\u5909\u6570\u306e\u5165\u308c\u7269\u3068\u30d5\u30ec\u30fc\u30e0","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20080425%2F1209137583\" title=\" SICP\u3092\u8aad\u3080(99) \u554f\u984c 3.10 - \u5c40\u6240\u5909\u6570\u306e\u5165\u308c\u7269\u3068\u30d5\u30ec\u30fc\u30e0 - \u30dc\u30af\u30ce\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://boxnos.hatenablog.com/entry/20080425/1209137583","author_url":"https://blog.hatena.ne.jp/tanakaBox/","categories":["Scheme"]}