Tools.h++ Class Reference

Equivalent keys within the collection will be grouped together based on an equality object of
type EQ. EQ must ensure this grouping via public member
bool operator()(const K& x, const K& y)
which should return true if x and y are equivalent.
RWTPtrHashMap<K,T,H,EQ> will not accept a key that compares equal to any key already in
the collection. (RWTPtrHashMultiMap<K,T,H,EQ> may contain multiple keys that compare
equal to each other.) Equality is based on the comparison object and not on the == operator.
Persistence
Isomorphic
Examples
//
// tphmap.cpp
//
#include<rw/tphdict.h>
#include<rw/cstring.h>
#include<iostream.h>
struct silly_hash{
unsigned long operator()(RWCString x) const
{ return x.length() * (long)x(0); }
};
int main(){
RWCString snd = "Second";
RWTPtrHashMap<RWCString,int,silly_hash,equal_to<RWCString> >
contest;
contest.insert(new RWCString("First"), new int(7));
contest.insert(&snd,new int(3));
//duplicate insertion rejected
contest.insert(&snd,new int(6));
contest.insert(new RWCString("Third"), new int(2));
cout << "There was "
<< contest.occurrencesOf(new RWCString("Second"))
<< " second place winner." << endl;
return 0;
}
Program Output: