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#if ! defined _Bag_h
#define _Bag_h 1
#include <stdio.h>
#include <basic/Iterator.h>
#include <basic/Collection.h>
#include <basic/Link.h>
namespace omega {
template<class T> class Bag : public Collection<T> {
public:
virtual ~Bag();
Bag();
Bag(const Bag<T>&);
Bag & operator=(const Bag<T>&);
//! add elements in b
virtual void operator |= (const Bag<T> & b);
Iterator<T> *new_iterator();
bool empty() const;
void remove(T);
virtual void insert(T);
void clear();
virtual bool contains(T) const;
int size() const;
T extract();
// protected: breaks g++ 261
List_Element<T>* contents;
};
template<class T> class Ordered_Bag : public Bag<T> {
public:
Ordered_Bag();
Ordered_Bag(const Ordered_Bag<T>& B) : Bag<T>(B) {}
void insert(T);
//! add elements in b
virtual void operator |= (const Ordered_Bag<T> & b);
//! add elements in b
void operator |= (const Bag<T> & b);
bool contains(T) const;
bool operator == (const Ordered_Bag<T>&) const;
bool operator != (const Ordered_Bag<T>&) const;
bool operator < (const Ordered_Bag<T>&) const;
};
template <class T> class Set : public Ordered_Bag <T> {
public:
Set();
Set(T);
Set(const Set<T>& S) : Ordered_Bag<T>(S) {}
bool contains (const Set<T>& b) const;
bool contains (T t) const { return Ordered_Bag<T>::contains(t); }
// the above makes "standard" C++ happy
//! add elements in b
virtual void operator |= (const Set<T> & b);
//! add elements in b
void operator |= (const Ordered_Bag<T> & b);
//! add elements in b
void operator |= (const Bag<T> & b);
//! delete items also in b
void operator -= (const Set<T> & b);
//! delete items not in b
void operator &= (const Set<T> & b);
//! check for elements in common
bool operator & (const Set<T> &) const;
};
} // namespace
#if ! defined DONT_INCLUDE_TEMPLATE_CODE
#include <basic/Bag.c>
#endif
#define instantiate_Bag(T) template class Bag<T>; \
instantiate_List_Element(T);
#define instantiate_Ordered_Bag(T) template class Ordered_Bag<T>; \
instantiate_Bag(T)
#define instantiate_Set(T) template class Set<T>; \
instantiate_Ordered_Bag(T)
#endif
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