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Should BasketOfApples derive from BasketOfFruit? Why or why not?
Given the following classes class Fruit { // … } class Apple : public Fruit { // … } class Peach : public Fruit { // … } // Container of fruit class BasketOfFruit { BasketOfFruit() ; void insert( Fruit & f ) ; // … } // Container of apples class BasketOfApples /* ??? */ { // … } Should BasketOfApples derive from BasketOfFruit? Why or why not? What is the general principle that determines the answer? ---------------------------------------------- Describe briefly what the following function does. What standard function is it most like ? int f( char *p ) { int n = 0 ; while ( *p != 0 ) n = 10*n + *p++ - ‘0? ; return n ; } ------------------------------------------- Describe briefly what function ‘a’ does in the following code fragment. struct s { struct s *next ; } a( struct s *p, struct s *x ) { while ( p->next != 0 ) p = p->next ; p->next = x ; x->next = 0 ; } -------------------------------------------- What default methods are declared implicitly by the C++ compiler for the class below: class Empty { }; -----------------------------------------------
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