<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<oembed>
  <author_name>higepon</author_name>
  <author_url>https://blog.hatena.ne.jp/higepon/</author_url>
  <blog_title>higepon blog</blog_title>
  <blog_url>https://higepon.hatenablog.com/</blog_url>
  <categories>
    <anon>Scheme</anon>
  </categories>
  <description>call-with-values / values の実装。 R5RSによれば values は以下のように call/cc を用いて定義できるらしい。 (define values (lambda things (call-with-current-continuation (lambda (cont) (apply cont things))))) call/cc をうまいこと拡張しつつ call-with-values を実装した。 mona&gt; (call-with-values (lambda () (values 4 5)) (lambda (a b) b)) 5 mona&gt; (ca…</description>
  <height>190</height>
  <html>&lt;iframe src=&quot;https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhigepon.hatenablog.com%2Fentry%2F20070221%2F1172063551&quot; title=&quot; call-with-values / values - higepon blog&quot; class=&quot;embed-card embed-blogcard&quot; scrolling=&quot;no&quot; frameborder=&quot;0&quot; style=&quot;display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;&quot;&gt;&lt;/iframe&gt;</html>
  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2007-02-21 22:12:31</published>
  <title> call-with-values / values</title>
  <type>rich</type>
  <url>https://higepon.hatenablog.com/entry/20070221/1172063551</url>
  <version>1.0</version>
  <width>100%</width>
</oembed>
