September 2015
Intermediate to advanced
364 pages
10h 33m
Japanese
Content preview from Effective Modern C++ ―C++11/14プログラムを進化させる42項目
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80
｜
3 章 現代の C++ への移行
れます。このため、古いコードで override という名前を使用していても、C++11 用に修正する必要
はありません。
class Warning { // potential legacy class from C++98
public: C++98 で使用していた可能性がある古いクラス
…
void override(); // legal in both C++98 and C++11
… // (with the same meaning)
}; C++98 でも C++11 でも正当（意味も変わらない）
override についての話は以上ですが、メンバ関数の参照修飾子についてはまだあります。詳細は
後述すると述べましたが、今がその時です。
実引数に左辺値のみをとる関数を記述する場合、非 const な左辺値参照仮引数とするのが通例
です。
void doSomething(Widget& w); // accepts only lvalue Widgets
左辺値の Widget のみをとる
また、実引数に右辺値のみをとる関数を記述する場合、右辺値参照仮引数とするのが通例です。
void doSomething(Widget&& w); // accepts only rvalue Widgets
右辺値の Widget のみをとる
メンバ関数の参照修飾子は、そのメンバ関数を実行するオブジェクト、すなわち *this を同様に
区別するためのものです。メンバ ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.