ã¯ã©ã¹ã® operator ãå®ç¾©ããã¨ããæ»ãå¤ã®åã¯ã©ããã¹ããã®ã¾ã¨ãã å ¨ä½ã¾ã¨ã ä»£å ¥æ¼ç®ï¼ã=ãï¼ åå·®ç©åï¼ã+ãã-ãã*ãã/ãï¼ èªèº«ã«å¯¾ããåå·®ç©åï¼ã+=ãã-=ãã*=ãã/=ãï¼ æ¯è¼æ¼ç®ï¼ã==ãã!=ãã<ãã>ãï¼ é åã¢ã¯ã»ã¹ï¼ã[ ]ãï¼ å®è£ ä¾ åè ãµã³ãã«ã¯ã©ã¹ 以ä¸ã®ã¯ã©ã¹ã«ã operator ãå®ç¾©ããã¨ãã¾ãã class CPoint3d { public: double x, y, z; CPoint3d(double a = 0, double b = 0, double c = 0) : x(a), y(b), z(c) {} }; å ¨ä½ã¾ã¨ã æ¼ç®ã®é£éãã§ããããã«ãæ»ãå¤ã®åã void ã§ã¯ãªããã¦ã¼ã¶ã¼å®ç¾©åã«ããã èªèº«ãè¿ãé¢æ°ã¯ãæ»ãå¤ã®åããéconståç §ã«ããã ã¦ã¼ã¶ã¼å®ç¾©åã®ä¸æãªãã¸ã§ã¯ããè¿ãé¢æ°ã¯ã
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