{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fharu-s.hatenablog.com%2Fentry%2F20111231%2F1325353666\" title=\"=&gt; - ...ing logging 4.0\" 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://haru-s.hatenablog.com/","width":"100%","blog_title":"...ing logging 4.0","provider_name":"Hatena Blog","categories":["D\u8a00\u8a9e"],"provider_url":"https://hatena.blog","published":"2011-12-31 02:47:46","title":"=>","type":"rich","url":"https://haru-s.hatenablog.com/entry/20111231/1325353666","height":"190","version":"1.0","author_name":"haru-s","description":"\u3042\u3051\u304a\u3081\uff0e import std.stdio; int f(alias F)(int x) { return F(x); } int g(int delegate(int) dg, int x) { return dg(x); } int h(int function(int) dg, int x) { return dg(x); } void main() { writeln(f!(x => x + 1)(1)); writeln(g(x => x + 1, 1)); writeln(h(x => x + 1, 1)); } \u3053\u308c\u304c\u52d5\u304f\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\uff0e \u30d1\u30c3\u30c1\u304c\u9069\u7528\u3055\u308c\u308b\u306e\u304c\u65e9\u3044\uff01","author_url":"https://blog.hatena.ne.jp/haru-s/"}