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Item Specifications

Item

Private Data Members

Declaration Description
string name Holds the name of a food item (as passed in by the constructor). You can assume the name only contains alphabetic characters.
int points The number of "points" the item is worth

Public Methods

Note: all the comparison operators do case-insensitive comparisons.

Item( const string & nameIn = "NONE", int pointsIn = 0 ) ;
Default constructor. Sets name to nameIn, and points to pointsIn. Use initializer lists.

Do NOT change the case of the name to lowercase.

string getName() const ;
Returns name.
int getPoints() const ;
Returns points.
bool setPoints( int pointsIn ) ;
Set points to pointsIn, but only if pointsIn is non-negative. If it's negative, don't change the value of points and return false. If it's non-negative, then update the points, and return true.
bool operator==( const Item & other ) const ;
Returns true if name and other.name are the same (case-insensitive). Implement using compare() (a private method).
bool operator!=( const Item & other ) const ;
Returns true if name and other.name are different (case-insensitive). Implement using compare() (a private method).
bool operator<( const Item & other ) const ;
Returns true if name is "less than" other.name (case-insensitive). Implement using compare() (a private method).
bool operator<=( const Item & other ) const ;
Returns true if name is "less than or equal to" other.name are different (case-insensitive). Implement using compare() (a private method).
bool operator>( const Item & other ) const ;
Returns true if name is "greater than" other.name (case-insensitive). Implement using compare() (a private method).
bool operator>=( const Item & other ) const ;
Returns true if name is "greater than or equal to" other.name are different (case-insensitive). Implement using compare() (a private method).
string toString() ;
Returns a string, which, when printed, prints the item name and points, appropriate to be used in printing ItemArrayList and ItemSortedList. That is, it should be used by their toString() method.

The following methods should be implemented, if you feel they are NECESSARY (meaning that the implicit versions of these methods are inadequate).

Item( const Item &other ) ;
Copy constructor. If you choose to implement, you must use helper methods: freeMem(), init(), and/or copy().
Item &operator=( const Item &other ) ;
Assignment operator. If you choose to implement, you must use helper methods: freeMem(), init(), and/or copy().
~Item();
Destructor. If you choose to implement, you must use helper methods: freeMem(), init(), and/or copy().

Private Methods

You are required to implement this method and use it to as a helper for the overloaded relational operators.

static int compare( const string & one, const string & second ) ;
Does a case-insensitive comparison of one and two, the parameters of this static method (this can be done by converting both to lower case---hint: use transform in STL).

If one is less than two, return -1.
If one is equal to two, return 0.
If one is greater to two, return 1.

This method behaves very much like strcmp in its return value (i.e., using -1, 0, and 1).

If you do choose to implement the copy constructor, assignment operator, and destructor, implement the following methods and use them as helper functions for the three methods.

There should be a file in the posting account (under Tutorial directory) on writing copy constructors, assignment operator, destructors. You should read that.

void init() ;
Behaves like default constructor.
void copy( const Item & other ) ;
Behaves like copy constructor (no deleting of nodes).
void freeMem() ;
Behaves like destructor.

You may add other private methods.

Other Methods

You should implement the overloaded output operator using the toString() method of Item.

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Last Modified: Tue Sep 17 19:01:23 EDT 2002 		left up down right home

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