{"url":"https://takehikom.hateblo.jp/entry/20151114/1447446172","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakehikom.hateblo.jp%2Fentry%2F20151114%2F1447446172\" title=\" \u30de\u30a4\u30ca\u30b90\u3092\u4f5c\u308b\uff0c\u4f7f\u3046 - \u308f\u3055\u3063\u304dhb\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":" \u30de\u30a4\u30ca\u30b90\u3092\u4f5c\u308b\uff0c\u4f7f\u3046","image_url":null,"description":"\u3044\u304d\u306a\u308a\u3067\u3059\u304c\u554f\u984c\u3067\u3059\uff0e wikipedia:-0\u3092\u898b\u3066\uff0cC\u3067\u6b21\u306e\u3088\u3046\u306b\u66f8\u3044\u305f\u306e\u3067\u3059\u304c\uff0c\u3069\u3046\u3082\u30de\u30a4\u30ca\u30b90\u306b\u306a\u3063\u3066\u304f\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3059\uff0e /* minus0_test.c */ #include <stdio.h> int main(void) { double x = -0; printf(\"%g\\n\", x); return 0; } \u51fa\u529b\u306f\u300c0\u300d\u306a\u306e\u3067\u3059\uff0e\u300c-0\u300d\u306e\u3068\u3053\u308d\u3092\uff0c\u300c(double)-0\u300d\u306b\u3057\u3066\u3082\uff0c\u300c(double)(-0)\u300d\u306b\u3057\u3066\u3082\uff0c\u30c0\u30e1\u3067\u3057\u305f\uff0e C\u3067\u306f\uff0c\u30de\u30a4\u30ca\u30b90\u3092\u8868\u73fe\u3067\u304d\u306a\u3044\u306e\u3067\u3057\u3087\u3046\u304b? \u3055\u3063\u305d\u304f\u3067\u3059\u304c\u89e3\u7b54\u3067\u3059\uff0eCygwin\u3084Ubuntu\u306eGCC\u3067\u3042\u308c\u3070\uff0c\u30de\u30a4\u30ca\u30b90\u306b\u3082\u5bfe\u5fdc\u2026","categories":["C","math"],"published":"2015-11-14 05:22:52","provider_url":"https://hatena.blog","type":"rich","width":"100%","blog_url":"https://takehikom.hateblo.jp/","author_url":"https://blog.hatena.ne.jp/takehikom/","height":"190","provider_name":"Hatena Blog","author_name":"takehikom","blog_title":"\u308f\u3055\u3063\u304dhb","version":"1.0"}