{"width":"100%","blog_title":"melpon\u65e5\u8a18 - Haskell\u3082C++\u3082\u307e\u3068\u3082\u306b\u6271\u3048\u306a\u3044\u3078\u305f\u308c\u306e\u30da\u30fc\u30b8","provider_name":"Hatena Blog","blog_url":"https://melpon.hatenadiary.org/","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmelpon.hatenadiary.org%2Fentry%2F20120624%2F1340507166\" title=\"map\u306eoperator[] - melpon\u65e5\u8a18 - Haskell\u3082C++\u3082\u307e\u3068\u3082\u306b\u6271\u3048\u306a\u3044\u3078\u305f\u308c\u306e\u30da\u30fc\u30b8\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","version":"1.0","published":"2012-06-24 12:06:06","categories":["C++"],"url":"https://melpon.hatenadiary.org/entry/20120624/1340507166","author_url":"https://blog.hatena.ne.jp/melpon/","type":"rich","image_url":null,"description":"cppreference.com \u306e map::operator[] \u306e\u8aac\u660e\u3092\u8aad\u3080\u3068\u3001\u3053\u3093\u306a\u3053\u3068\u304c\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002 1) Essentially performs (insert(std::make_pair(key, T())).first)->second. 2) Essentially performs (insert(std::make_pair(std::move(key), T())).first)->second. std::map::operator[] - cppreference.com operator[] \u306f insert(make_pair(key, T())).fi\u2026","author_name":"melpon","title":"map\u306eoperator[]"}