{"provider_name":"Hatena Blog","type":"rich","height":"190","published":"2013-07-29 11:30:24","version":"1.0","blog_title":"TXT.TXT","provider_url":"https://hatena.blog","description":"\uff21\uff21\uff21\u3042\uff21\uff21\uff21\uff21\uff21\uff21\u3041\u3042\u3042\u3042\uff21\u3042\u3042\u3042\uff21\u3042\u3042\u3042\u3042\u3042\uff01\uff1f\uff1f\uff1f\uff1f\uff1f\uff1f const std::string&x = 0; \uff1e\uff1eExpression: invalid null pointer \u3053\u3044\u3064\u7b49\u3082\u30b3\u30f3\u30d1\u30a4\u30eb\u901a\u308a\u3084\u304c\u3063\u305f\u2026\u2026 const std::string&y = NULL; const std::string&z = nullptr; \u306a\u306b\u3092\u3069\u30fc\u3084\u3063\u305f\u3089\u53c2\u7167\u306bNULL\u3076\u3061\u8fbc\u3080\u65e5\u304c\u6765\u308b\u3093\u3060\u3088\u3002\u755c\u751f\u3001\u755c\u751f\u2026\u2026*1 \u3061\u306a\u307f\u306b\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u306f void f(const std::string&s){ }void f(int x){ std::cout<<\"safe\";} //main f(0);//\u2026","author_name":"txttxt","author_url":"https://blog.hatena.ne.jp/txttxt/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftxt-txt.hateblo.jp%2Fentry%2F2013%2F07%2F29%2F113024\" title=\"const std::string&amp;x=0 ;\u304c\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u901a\u3063\u3066\uff3c\uff87\uff99\uff8e\uff9f!!\uff0f\u304b\u3064\u3066\u306a\u3044\u6bba\u610f\u3068\u60b2\u3057\u307f\u306e\u6ce2\u52d5\u3092\u982d\u306e\u75db\u304f\u306a\u308a\u305d\u3046\u306a\u65b0\u3057\u3044\u611f\u899a\u3092\u5473\u308f\u3063\u3066\u3044\u308b\u304b\u3044\uff1f - TXT.TXT\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"width":"100%","title":"const std::string&x=0 ;\u304c\u30b3\u30f3\u30d1\u30a4\u30eb\u3092\u901a\u3063\u3066\uff3c\uff87\uff99\uff8e\uff9f!!\uff0f\u304b\u3064\u3066\u306a\u3044\u6bba\u610f\u3068\u60b2\u3057\u307f\u306e\u6ce2\u52d5\u3092\u982d\u306e\u75db\u304f\u306a\u308a\u305d\u3046\u306a\u65b0\u3057\u3044\u611f\u899a\u3092\u5473\u308f\u3063\u3066\u3044\u308b\u304b\u3044\uff1f","url":"https://txt-txt.hateblo.jp/entry/2013/07/29/113024","blog_url":"https://txt-txt.hateblo.jp/","categories":["C++\u96d1\u8a18"]}