cpp:friend_methods
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cpp:friend_methods [2017/04/20 15:23] – gthanos | cpp:friend_methods [2017/04/20 15:51] – gthanos | ||
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} | } | ||
</ | </ | ||
+ | |||
+ | ====== Φιλικές Κλάσεις ====== | ||
+ | |||
+ | Σε αναλογία με τις φιλικές συναρτήσεις μπορείτε να έχετε και φιλικές κλάσεις που έχουν πρόσβαση στο σύνολο των πεδίων κλάσης. Στο παρακάτω παράδειγμα, | ||
+ | |||
+ | |||
+ | <code cpp Rectangle.cpp> | ||
+ | #include < | ||
+ | using namespace std; | ||
+ | |||
+ | class Rectangle { | ||
+ | friend class Cuboid; | ||
+ | private: | ||
+ | int width, height; | ||
+ | public: | ||
+ | Rectangle(int w, int h); | ||
+ | void setWidth(int w); | ||
+ | void setHeight(int h); | ||
+ | int getWidth(); | ||
+ | int getHeight(); | ||
+ | }; | ||
+ | |||
+ | Rectangle:: | ||
+ | width = w; height = h; | ||
+ | } | ||
+ | |||
+ | void Rectangle:: | ||
+ | void Rectangle:: | ||
+ | int Rectangle:: | ||
+ | int Rectangle:: | ||
+ | </ | ||
+ | |||
+ | <code cpp Cuboid.cpp> | ||
+ | #include < | ||
+ | using namespace std; | ||
+ | |||
+ | #include " | ||
+ | |||
+ | class Cuboid { | ||
+ | Rectangle r; | ||
+ | int length; | ||
+ | public: | ||
+ | void modifyDimensions(int dw, int dh, int dl) { | ||
+ | r.width += dw; | ||
+ | r.height += dh; | ||
+ | length += dl; | ||
+ | } | ||
+ | } | ||
+ | < |
cpp/friend_methods.txt · Last modified: 2021/05/18 06:21 (external edit)