{"author_url":"https://blog.hatena.ne.jp/wata_d/","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","height":"190","blog_title":"\u9591\u53e4\u9ce5","author_name":"wata_d","blog_url":"https://www.little-cuckoo.jp/","version":"1.0","url":"https://www.little-cuckoo.jp/entry/20051031/1130746742","description":"delete\u306e\u304a\u7d04\u675f NULL\u30dd\u30a4\u30f3\u30bf\u306edelete\u3092\u5b89\u5168\u306b\u884c\u308f\u305b\u308b\u3002 Effective C++ \u306b\u3082\u66f8\u3044\u3066\u3042\u3063\u305f\u306e\u304b\u2026\u2026\u3002\u3053\u308c\u306f\u672c\u793e\u306e\u3081\u304c\u306d\u5148\u8f29(\u8ab0\u3066\u3044\u3046\u304b\u5931\u793c)\u306e\u5e2d\u306b\u3042\u3063\u305f\u306f\u305a\u306a\u306e\u3067\u3001\u3044\u3064\u305e\u3084\u306e\u65e5\u8a18*1\u3067\u3082\u3053\u308c\u3092\u6307\u3057\u3066\u304a\u3051\u3070\u3088\u304b\u3063\u305f\u304b\u306a\u3002\u5f15\u7528\u5148\u306e\u8a18\u4e8b\u3092\u898b\u3066\u3044\u3066\u3001\u305d\u3046\u3044\u3048\u3070\u6614 if(ptr != 0) delete ptr; \u306a\u3093\u3066\u3084\u3063\u3066\u3001\u305d\u308c\u3060\u3051\u3067\u6e80\u8db3\u3057\u3066\u3044\u308b\u304b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u304c\u3042\u3063\u305f\u3053\u3068\u3092\u601d\u3044\u51fa\u3057\u305f\u3002\u3053\u306e\u30b3\u30fc\u30c9\u304c\u8907\u6570\u56de\u547c\u3070\u308c\u305f\u6642\u306e\u52d5\u4f5c\u306f\u672a\u5b9a\u7fa9\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u306e\u3067 (delete \u3057\u3066\u3082 ptr \u5909\u6570\u306e\u6307\u3057\u793a\u3059\u30a2\u30c9\u30ec\u30b9\u306f\u5909\u308f\u3089\u306a\u3044) \u3001\u672c\u5f53\u306b\u591a\u91cd delete \u3092\u9632\u304e\u305f\u3044\u306e\u306a\u3089 if \u6587\u3058\u3083\u2026","title":"delete \u5f8c\u306e\u30dd\u30a4\u30f3\u30bf\u5909\u6570\u306f null \u3067\u57cb\u3081\u3068\u3053\u3046","type":"rich","image_url":null,"width":"100%","categories":["C++"],"published":"2005-10-31 17:19:02","html":""}