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hi everyone, can someone please give me some idea on this kinda function?
being thinking whole day and dont know what it means...
// intersection of this set with another
// Pre: a StringSet object
// Post: returns a new StringSet which is the intersection
// of this with otherset, ie. only the items common to both StringSets
StringSet StringSet::set_intersection(StringSet otherset)
{
}
(1)StringSet (2)StringSet(3)::(4)set_intersection((5)StringSet otherset)
This is a function defined as member of a class.
- (1) The function will return an object of type StringSet.
- (2) The function is defined as a member of the StringSet class.
- (3) The scope operator (:: ) serves to establish in which scope should this function be defined. On this case, it is the StringSet scope
- (4) The function name.
- (5) It's parameter. It accepts as parameter a StringSet object that it will call otherset.
To better understand how to define function members of classes, read about classes on some good tutorial like:
http://www.cplusplus.com/doc/tutorial/classes.html
yap, thank you for that. but i mean code idea not definition sample... thank you
What's to think about?
Do you know what a set is - look it up at mathworld.
Elements which appear in both are the intersection, so just a loop searching for each one.