{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmzp.hatenadiary.org%2Fentry%2F20090530%2Fint\" title=\"Perl\u3067\u6574\u6570\u5224\u5b9a\u304c\u3057\u305f\u3044 - \u307f\u305a\u3074\u30fc\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/mzp/","blog_url":"https://mzp.hatenadiary.org/","description":"Perl\u3067\u6574\u6570\u5224\u5b9a\u304c\u3057\u305f\u3044\u306e\u3067\u8abf\u3079\u3066\u307f\u305f\u3002 \u300c\u5207\u308a\u6368\u3066\u300d\u306b int() \u306f\u4f7f\u3046\u3079\u304b\u3089\u305a - \u306b\u307d\u305f\u3093\u7814\u7a76\u6240\u66f0\u304fint()\u95a2\u6570\u306f\u30c0\u30e1\u3067\u3001POSIX::ceil/POSIX::floor\u304bsprintf\u3092\u4f7f\u3046\u3079\u304d\u3089\u3057\u3044\u3002POSIX::floor\u3092\u4f7f\u3063\u3066\u307f\u305f\u3051\u3069\u3001\u5fae\u5999\u306a\u6761\u4ef6\u3060\u3068\u4e0a\u624b\u304f\u3044\u304b\u306a\u3044\u3002 use POSIX; sub is_int($) { my ($n) = @_; $n == POSIX::floor($n); } print 125**(1/3),\"\\n\"; # => 5 print is_int(125**(1/3)),\"\\n\"; # => false \u3057\u3087\u3046\u304c\u306a\u3044\u306e\u3067\u3001sprintf\u2026","version":"1.0","title":"Perl\u3067\u6574\u6570\u5224\u5b9a\u304c\u3057\u305f\u3044","provider_name":"Hatena Blog","height":"190","published":"2009-05-30 00:00:00","blog_title":"\u307f\u305a\u3074\u30fc\u65e5\u8a18","width":"100%","provider_url":"https://hatena.blog","image_url":null,"type":"rich","categories":["Perl"],"url":"https://mzp.hatenadiary.org/entry/20090530/int","author_name":"mzp"}