RWTPtrMultiMapIterator< K, T, C, A > Class Template Reference
[STL-based Collections]

Provides an iterator for RWTPtrMultiMap. More...

#include <rw/tpmmap.h>

Public Member Functions
	RWTPtrMultiMapIterator (RWTPtrMultiMap< K, T, C, A > &m)
bool	operator++ ()
K *	operator() ()
RWTPtrMultiMap< K, T, C,A > *	container () const
K *	key () const
void	reset ()
void	reset (RWTPtrMultiMap< K, T, C, A > &m)
T *	value () const

Detailed Description

template<class K, class T, class C, class A = std:: allocator < std::pair<K* const, T*> >>
class RWTPtrMultiMapIterator< K, T, C, A >

RWTPtrMultiMapIterator provides an iterator interface to the C++ Standard Library-based collection represented by RWTPtrMultiMap.(An STL iterator interface is provided through RWTPtrMultiMap::iterator.)

The order of iteration over an RWTPtrMultiMap is dependent on the comparator object of the container as applied to the key values of the stored associations.

The current item referenced by this iterator is undefined after construction or after a call to reset(). The iterator becomes valid after being advanced with either a pre-increment or operator().

For both operator++() and operator()(), iterating past the last element will return a value equivalent to boolean false. Continued increments will return a value equivalent to false until reset() is called.

The value type must have operator== and operator< defined. This requirement is imposed by the C++ Standard Library.

Synopsis

 #include<rw/tpmmap.h>
 RWTPtrMultiMap<K,T,C,A>  map;
 RWTPtrMultiMapIterator<K,T,C,A> itr(map);

Persistence

None

Examples

 #include <rw/tpmmap.h>
 #include <iostream>
 #include <rw/cstring.h>
 #include <utility>
 
 int main() {
    RWTPtrMultiMap<RWCString,int,std::less<RWCString> > age;
    RWTPtrMultiMapIterator<RWCString,int,std::less<RWCString> > itr(age);
 
    age.insert(new RWCString("John"), new int(30));
    age.insert(new RWCString("Steve"),new int(17));
    age.insert(new RWCString("Mark"), new int(24));
    age.insert(new RWCString("Steve"),new int(24));
 
    while(itr()) {
      std::cout << *itr.key() << "\'s age is " << *itr.value()
                << std::endl;
    }
 
    age.clearAndDestroy();
    return 0;
 }

Program Output:

 John's age is 30
 Mark's age is 24
 Steve's age is 17
 Steve's age is 24