{"description":"\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\uff0c\u30af\u30e9\u30b9 B \u306e\u69cb\u7bc9\u6642\u306b\u6697\u9ed9\u306e\u3046\u3061\u306b\u30af\u30e9\u30b9 A \u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u547c\u3073\u51fa\u3055\u308c\uff0c\u30e1\u30f3\u30d0\u306e a \u304c\u69cb\u7bc9\u3055\u308c\u308b\uff0e\u7d50\u679c\u3068\u3057\u3066 \"constructor A\" \u306a\u308b\u6587\u5b57\u5217\u304c\u51fa\u529b\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308b\uff0e #include <iostream> class A { public: A() { std::cout << \"contructor A\" << std::endl; } }; class B { private: A a; public: B() {} }; int main() { B b; return 0; } \u30af\u30e9\u30b9 B \u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u4e2d\u3067\u30af\u30e9\u30b9 A \u306e\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u3092\u660e\u2026","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20090413%2Fp1\" title=\"\u30e1\u30f3\u30d0\u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u3092\u4f7f\u304a\u3046 - \u7406\u7cfb\u5b66\u751f\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>","height":"190","url":"https://kiririmode.hatenablog.jp/entry/20090413/p1","title":"\u30e1\u30f3\u30d0\u30a4\u30cb\u30b7\u30e3\u30e9\u30a4\u30b6\u3092\u4f7f\u304a\u3046","blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","categories":["c++"],"author_name":"kiririmode","author_url":"https://blog.hatena.ne.jp/kiririmode/","type":"rich","published":"2009-04-13 00:00:00","provider_name":"Hatena Blog","width":"100%","version":"1.0","blog_url":"https://kiririmode.hatenablog.jp/","image_url":null}