RWTValHashSet< T, H, EQ, A > Class Template Reference

Maintains a collection of values stored according to a hash object. More...

#include <rw/tvhset.h>

Public Types
typedef container_type::allocator_type	allocator_type
typedef container_type::const_iterator	const_iterator
typedef container_type::const_pointer	const_pointer
typedef container_type::const_reference	const_reference
typedef rw_hashset< T, H, EQ, A >	container_type
typedef container_type::difference_type	difference_type
typedef container_type::hasher	hasher
typedef container_type::iterator	iterator
typedef container_type::key_equal_type	key_equal
typedef container_type::key_type	key_type
typedef container_type::pointer	pointer
typedef container_type::reference	reference
typedef container_type::size_type	size_type
typedef container_type::value_type	value_type

Public Member Functions
	RWTValHashSet (size_type sz=64, const hasher &h=hasher(), const key_equal &eq=key_equal())
	RWTValHashSet (const container_type &s)
	RWTValHashSet (const RWTValHashSet< T, H, EQ, A > &rws)
	RWTValHashSet (RWTValHashSet< T, H, EQ, A > &&rws)
	RWTValHashSet (container_type &&rws)
template<typename InputIterator >
	RWTValHashSet (InputIterator first, InputIterator last, size_type sz=64, const hasher &h=hasher(), const key_equal &eq=key_equal())
	RWTValHashSet (const hasher &h, size_type sz=64)
void	apply (void(*fn)(const_reference, void *), void *d) const
iterator	begin ()
const_iterator	begin () const
size_type	capacity () const
const_iterator	cbegin () const
const_iterator	cend () const
void	clear ()
bool	contains (bool(*fn)(const_reference, void *), void *d) const
bool	contains (const_reference a) const
RWTValHashSet< T, H, EQ, A > &	difference (const RWTValHashSet< T, H, EQ, A > &s)
RWTValHashSet< T, H, EQ, A > &	difference (const rw_hashset< T, H, EQ, A > &s)
iterator	end ()
const_iterator	end () const
size_type	entries () const
iterator	erase (iterator pos)
iterator	erase (iterator first, iterator last)
float	fillRatio () const
bool	find (bool(*fn)(const_reference, void *), void *d, value_type &k) const
bool	find (const_reference a, value_type &k) const
bool	insert (const_reference datum)
iterator	insert (iterator hint, const_reference val)
template<typename InputIterator >
void	insert (InputIterator first, InputIterator last)
bool	insert (value_type &&datum)
iterator	insert (iterator hint, value_type &&val)
RWTValHashSet< T, H, EQ, A > &	intersection (const RWTValHashSet< T, H, EQ, A > &rhs)
RWTValHashSet< T, H, EQ, A > &	intersection (const rw_hashset< T, H, EQ, A > &rhs)
bool	isEmpty () const
bool	isEquivalent (const RWTValHashSet< T, H, EQ, A > &s) const
bool	isProperSubsetOf (const RWTValHashSet< T, H, EQ, A > &s) const
bool	isSubsetOf (const RWTValHashSet< T, H, EQ, A > &s) const
size_type	occurrencesOf (bool(*fn)(const_reference, void *), void *d) const
size_type	occurrencesOf (const_reference a) const
RWTValHashSet< T, H, EQ, A > &	operator= (const RWTValHashSet< T, H, EQ, A > &rhs)
RWTValHashSet< T, H, EQ, A > &	operator= (const container_type &rhs)
RWTValHashSet< T, H, EQ, A > &	operator= (RWTValHashSet< T, H, EQ, A > &&rhs)
RWTValHashSet< T, H, EQ, A > &	operator= (container_type &&rhs)
bool	remove (bool(*fn)(const_reference, void *), void *d)
bool	remove (const_reference a)
size_type	removeAll (bool(*fn)(const_reference, void *), void *d)
size_type	removeAll (const_reference a)
void	resize (size_type sz)
container_type &	std ()
const container_type &	std () const
void	swap (RWTValHashSet< T, H, EQ, A > &other)
RWTValHashSet< T, H, EQ, A > &	symmetricDifference (const RWTValHashSet< T, H, EQ, A > &rhs)
RWTValHashSet< T, H, EQ, A > &	symmetricDifference (const rw_hashset< T, H, EQ, A > &rhs)
RWTValHashSet< T, H, EQ, A > &	Union (const RWTValHashSet< T, H, EQ, A > &rhs)
RWTValHashSet< T, H, EQ, A > &	Union (const rw_hashset< T, H, EQ, A > &rhs)

Related Functions
(Note that these are not member functions.)
template<class T , class H , class EQ , class A >
bool	operator!= (const RWTValHashSet< T, H, EQ, A > &lhs, const RWTValHashSet< T, H, EQ, A > &rhs)
template<class T , class H , class EQ , class A >
bool	operator!= (const RWTValHashSet< T, H, EQ, A > &lhs, const typename RWTValHashSet< T, H, EQ, A >::container_type &rhs)
template<class T , class H , class EQ , class A >
bool	operator!= (const typename RWTValHashSet< T, H, EQ, A >::container_type &lhs, const RWTValHashSet< T, H, EQ, A > &rhs)
template<class T , class H , class EQ , class A >
RWvostream &	operator<< (RWvostream &strm, const RWTValHashSet< T, H, EQ, A > &coll)
template<class T , class H , class EQ , class A >
RWFile &	operator<< (RWFile &file, const RWTValHashSet< T, H, EQ, A > &coll)
template<class T , class H , class EQ , class A >
bool	operator== (const RWTValHashSet< T, H, EQ, A > &lhs, const RWTValHashSet< T, H, EQ, A > &rhs)
template<class T , class H , class EQ , class A >
bool	operator== (const RWTValHashSet< T, H, EQ, A > &lhs, const typename RWTValHashSet< T, H, EQ, A >::container_type &rhs)
template<class T , class H , class EQ , class A >
bool	operator== (const typename RWTValHashSet< T, H, EQ, A >::container_type &lhs, const RWTValHashSet< T, H, EQ, A > &rhs)
template<class T , class H , class EQ , class A >
RWvistream &	operator>> (RWvistream &strm, RWTValHashSet< T, H, EQ, A > &coll)
template<class T , class H , class EQ , class A >
RWFile &	operator>> (RWFile &file, RWTValHashSet< T, H, EQ, A > &coll)
template<class T , class H , class EQ , class A >
RWvistream &	operator>> (RWvistream &strm, RWTValHashSet< T, H, EQ, A > *&p)
template<class T , class H , class EQ , class A >
RWFile &	operator>> (RWFile &file, RWTValHashSet< T, H, EQ, A > *&p)

Detailed Description

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>
class RWTValHashSet< T, H, EQ, A >

This class maintains a collection of values, which are stored according to a hash object of type H. Class T is the type of items in the collection. Class A is an allocator of objects of class T. For more information about using custom allocators, please see the Essential Tools Module User's Guide.

H must provide a const function that takes a single argument convertible to type T and returns a value of type size_t.

Note

Any two elements that are equivalent must hash to the same value.

Element equality is determined by an equality function of type EQ, which takes two arguments convertible to type T and returns a value of type bool.

Note

Any two elements that are equivalent are disallowed for this container.

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

Synopsis

#include <rw/tvhset.h>
RWTValHashSet<T,H,EQ,A> s;

See also

Class RWTValHashMultiSet offers the same interface to a collection that does accept multiple items that compare equal to each other.

Class rw_hashset<T,H,EQ,A> is the C++ Standard Library collection that serves as the underlying implementation for this class.

Persistence

Isomorphic

Example

#include <iostream>
#include <functional>
#include <rw/tvhset.h>
#include <rw/cstring.h>

struct simple_hash
{
    unsigned long
    operator()(const RWCString& ref) const {
        size_t n = ref.length ();
        return (unsigned long)(n ? n * size_t (ref [0]) : 0);
    }
};

int main ()
{
    RWTValHashSet<RWCString,simple_hash,std::equal_to<RWCString> > set1;
    RWTValHashSet<RWCString,simple_hash,std::equal_to<RWCString> > set2;

    set1.insert("one");
    set1.insert("two");
    set1.insert("three");

    // Rejected, no duplicates allowed
    set1.insert("one");

    std::cout << set1.entries() << std::endl; // Prints "3"

    set2.insert("one");
    set2.insert("five");

    // Rejected, no duplicates allowed
    set2.insert("one");

    std::cout << ((set1.isEquivalent(set2)) ? "true" : "false") << std::endl;
    // Prints "false"

    set2.intersection(set1);

    set1.clear();
    std::cout << set1.entries() << std::endl; // Prints "0"
    std::cout << set2.entries() << std::endl; // Prints "1"

    return 0;
}

Program Output:

3
false
0
1

Member Typedef Documentation

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::allocator_type RWTValHashSet< T, H, EQ, A >::allocator_type

A type representing the allocator type for the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::const_iterator RWTValHashSet< T, H, EQ, A >::const_iterator

A type that provides a const forward iterator over the elements in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::const_pointer RWTValHashSet< T, H, EQ, A >::const_pointer

A type that provides a const pointer to an element in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::const_reference RWTValHashSet< T, H, EQ, A >::const_reference

A type that provides a const reference to an element in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef rw_hashset<T, H, EQ, A> RWTValHashSet< T, H, EQ, A >::container_type

A type representing the underlying implementation container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::difference_type RWTValHashSet< T, H, EQ, A >::difference_type

A signed integral type used to indicate the distance between two valid iterators on the same container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::hasher RWTValHashSet< T, H, EQ, A >::hasher

A type representing the hash function.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::iterator RWTValHashSet< T, H, EQ, A >::iterator

A type that provides a forward iterator over the elements in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::key_equal_type RWTValHashSet< T, H, EQ, A >::key_equal

A type representing the equality function.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::key_type RWTValHashSet< T, H, EQ, A >::key_type

A type representing the key of the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::pointer RWTValHashSet< T, H, EQ, A >::pointer

A type that provides a pointer to an element in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::reference RWTValHashSet< T, H, EQ, A >::reference

A type that provides a reference to an element in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::size_type RWTValHashSet< T, H, EQ, A >::size_type

An unsigned integral type used for counting the number of elements in the container.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

typedef container_type::value_type RWTValHashSet< T, H, EQ, A >::value_type

A type representing the container's data type.

Constructor & Destructor Documentation

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( size_type  sz = 64, const hasher &  h = hasher(), const key_equal &  eq = key_equal()  )

inline

Constructs an empty hashed set. The underlying hash table representation has sz buckets, uses h for its hashing function, and uses eq to determine equality between elements.

Note

If the value specified for sz is zero, the default bucket count is used.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( const container_type &  s )

inline

Constructs a set by copying all elements of s.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( const RWTValHashSet< T, H, EQ, A > &  rws )

inline

Copy constructor.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( RWTValHashSet< T, H, EQ, A > &&  rws )

inline

Move constructor. The constructed list takes ownership of the data owned by rws.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( container_type &&  rws )

inline

Move constructor. The constructed list takes ownership of the data owned by rws.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

template<typename InputIterator >

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( InputIterator  first, InputIterator  last, size_type  sz = 64, const hasher &  h = hasher(), const key_equal &  eq = key_equal()  )

inline

Constructs a set by copying elements from the range [first, last). The underlying hash table representation has sz buckets, uses h for its hashing function, and uses eq to determine equality between elements.

InputIterator is an input iterator type that points to elements that are convertible to value_type objects.

Note

If the value specified for sz is zero, the default bucket count is used.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet< T, H, EQ, A >::RWTValHashSet ( const hasher &  h, size_type  sz = 64  )

inline

Creates an empty hashed set that uses the hash object h and has an initial hash table capacity of sz.

Note

If the value specified for sz is zero, the default capacity is used.

Member Function Documentation

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

void RWTValHashSet< T, H, EQ, A >::apply ( void(*)(const_reference, void *)  fn, void *  d  ) const

inline

Invokes the function pointer fn on each item in the collection. Client data may be passed through parameter d.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

iterator RWTValHashSet< T, H, EQ, A >::begin ( )

inline

Returns an iterator referring to the first element in the container.

If the container is empty, returns end().

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

const_iterator RWTValHashSet< T, H, EQ, A >::begin ( ) const

inline

Returns an iterator referring to the first element in the container.

If the container is empty, returns end().

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

size_type RWTValHashSet< T, H, EQ, A >::capacity ( ) const

inline

Returns the number of buckets (slots) available in the underlying hash representation. See resize().

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

const_iterator RWTValHashSet< T, H, EQ, A >::cbegin ( ) const

inline

Returns an iterator referring to the first element in the container.

If the container is empty, returns end().

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

const_iterator RWTValHashSet< T, H, EQ, A >::cend ( ) const

inline

Returns an iterator referring to the element after the last element in the container.

Dereferencing the iterator returned by this function results in undefined behavior.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

void RWTValHashSet< T, H, EQ, A >::clear ( void  )

inline

Clears the collection by removing all items from self. Each item has its destructor called.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::contains ( bool(*)(const_reference, void *)  fn, void *  d  ) const

inline

Returns true if there exists an element t in self such that the expression ((*fn)(t,d)) is true, otherwise returns false. Client data may be passed through parameter d.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::contains ( const_reference  a ) const

inline

Returns true if there exists an element t in self that compares equal to a, otherwise returns false.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::difference ( const RWTValHashSet< T, H, EQ, A > &  s )

inline

Sets self to the set-theoretic difference given by (self - s).

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::difference

(

const rw_hashset< T, H, EQ, A > &

s

)

Sets self to the set-theoretic difference given by (self - s).

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

iterator RWTValHashSet< T, H, EQ, A >::end ( )

inline

Returns an iterator referring to the element after the last element in the container.

Dereferencing the iterator returned by this function results in undefined behavior.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

const_iterator RWTValHashSet< T, H, EQ, A >::end ( ) const

inline

Returns an iterator referring to the element after the last element in the container.

Dereferencing the iterator returned by this function results in undefined behavior.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

size_type RWTValHashSet< T, H, EQ, A >::entries ( void  ) const

inline

Returns the number of elements in self.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

iterator RWTValHashSet< T, H, EQ, A >::erase ( iterator  pos )

inline

Removes the item pointed to by pos from the collection. Returns an iterator that points to the next item in the collection, or end() if the last item in the collection was removed.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

iterator RWTValHashSet< T, H, EQ, A >::erase ( iterator  first, iterator  last  )

inline

Removes the items in the range [first, last) from the collection. Returns an iterator that points to the next item in the collection, or end() if the last item in the collection was removed.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

float RWTValHashSet< T, H, EQ, A >::fillRatio ( ) const

inline

Returns the ratio entries() / capacity().

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::find ( bool(*)(const_reference, void *)  fn, void *  d, value_type &  k  ) const

inline

If there exists an element t in self such that the expression ((*fn)(t,d)) is true, assigns t to k and returns true. Otherwise, returns false and leaves the value of k unchanged. Client data may be passed through parameter d.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::find ( const_reference  a, value_type &  k  ) const

inline

If there exists an element t in self that compares equal to a, assigns t to k and returns true. Otherwise, returns false and leaves the value of k unchanged.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::insert ( const_reference  datum )

inline

Adds the item a to the collection. Returns true if the insertion is successful, otherwise returns false. The function returns true unless the collection already holds an element with the equivalent key.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

iterator RWTValHashSet< T, H, EQ, A >::insert ( iterator  hint, const_reference  val  )

inline

Attempts to insert val into self. If an existing item with an equivalent key is already in the collection, val is not inserted, and an iterator to the existing item is returned. Otherwise inserts val and returns an iterator to the new item.

The hint parameter indicates where in the collection the new value should be inserted. This value is only a hint, and will be ignored if the value should be inserted at a different location according to the container's hash object.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

template<typename InputIterator >

void RWTValHashSet< T, H, EQ, A >::insert ( InputIterator  first, InputIterator  last  )

inline

Inserts the elements in the range [first, last) into self. If the element is already present in the collection, it will be ignored.

InputIterator is an input iterator type that points to elements that are convertible to value_type objects.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::insert ( value_type &&  datum )

inline

Adds the item a to the collection. Returns true if the insertion is successful, otherwise returns false. The function returns true unless the collection already holds an element with the equivalent key.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

iterator RWTValHashSet< T, H, EQ, A >::insert ( iterator  hint, value_type &&  val  )

inline

Attempts to insert val into self. If an existing item with an equivalent key is already in the collection, val is not inserted, and an iterator to the existing item is returned. Otherwise inserts val and returns an iterator to the new item.

The hint parameter indicates where in the collection the new value should be inserted. This value is only a hint, and will be ignored if the value should be inserted at a different location according to the container's hash object.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::intersection ( const RWTValHashSet< T, H, EQ, A > &  rhs )

inline

Destructively performs a set-theoretic intersection of self and rhs, replacing the contents of self with the result.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::intersection

(

const rw_hashset< T, H, EQ, A > &

rhs

)

Destructively performs a set-theoretic intersection of self and rhs, replacing the contents of self with the result.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::isEmpty ( ) const

inline

Returns true if there are no items in the collection, otherwise returns false.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::isEquivalent ( const RWTValHashSet< T, H, EQ, A > &  s ) const

inline

Returns true if self and s are identical, otherwise returns false.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::isProperSubsetOf ( const RWTValHashSet< T, H, EQ, A > &  s ) const

inline

Returns true if self is a proper subset of s, otherwise returns false.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::isSubsetOf ( const RWTValHashSet< T, H, EQ, A > &  s ) const

inline

Returns true if self is a subset of s or if self is set equivalent to s, otherwise returns false.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

size_type RWTValHashSet< T, H, EQ, A >::occurrencesOf ( bool(*)(const_reference, void *)  fn, void *  d  ) const

inline

Returns the number of elements t in self such that the expression ((*fn)(t,d)) is true. Client data may be passed through parameter d.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

size_type RWTValHashSet< T, H, EQ, A >::occurrencesOf ( const_reference  a ) const

inline

Returns the number of elements t in self that compare equal to a.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::operator= ( const RWTValHashSet< T, H, EQ, A > &  rhs )

inline

Destroys all elements of self and replaces them by copying all elements of rhs.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::operator= ( const container_type &  rhs )

inline

Destroys all elements of self and replaces them by copying all elements of rhs.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::operator= ( RWTValHashSet< T, H, EQ, A > &&  rhs )

inline

Move assignment. Self takes ownership of the data owned by rhs.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::operator= ( container_type &&  rhs )

inline

Move assignment. Self takes ownership of the data owned by rhs.

Condition:

This method is available only on platforms with rvalue reference support.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::remove ( bool(*)(const_reference, void *)  fn, void *  d  )

inline

Removes the first element t in self such that the expression ((*fn)(t,d)) is true and returns true. Returns false if there is no such element. Client data may be passed through parameter d.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

bool RWTValHashSet< T, H, EQ, A >::remove ( const_reference  a )

inline

Removes the first element t in self that compares equal to a and returns true. Returns false if there is no such element.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

size_type RWTValHashSet< T, H, EQ, A >::removeAll	(	bool(*)(const_reference, void *)	fn,
		void *	d
	)

Removes all elements t in self such that the expression ((*fn)(t,d)) is true. Returns the number of items removed. Client data may be passed through parameter d.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

size_type RWTValHashSet< T, H, EQ, A >::removeAll ( const_reference  a )

inline

Removes all elements t in self that compare equal to a. Returns the number of items removed.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

void RWTValHashSet< T, H, EQ, A >::resize ( size_type  sz )

inline

Changes the capacity of self by creating a new hashed set with a capacity of sz. resize() copies every element of self into the new container and finally swaps the internal representation of the new container with the internal representation of self.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

container_type& RWTValHashSet< T, H, EQ, A >::std ( )

inline

Returns a reference to the underlying collection that serves as the implementation for self. This reference may be used freely, providing access to the C++ Standard Library interface as well as interoperability with other software components that make use of C++ Standard Library collections.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

const container_type& RWTValHashSet< T, H, EQ, A >::std ( ) const

inline

Returns a reference to the underlying collection that serves as the implementation for self. This reference may be used freely, providing access to the C++ Standard Library interface as well as interoperability with other software components that make use of C++ Standard Library collections.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

void RWTValHashSet< T, H, EQ, A >::swap ( RWTValHashSet< T, H, EQ, A > &  other )

inline

Swaps the data held by self with the data held by other, including the H and EQ objects. This method does not copy or destroy any of the items swapped; rather, it swaps the underlying hash tables.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::symmetricDifference ( const RWTValHashSet< T, H, EQ, A > &  rhs )

inline

Destructively performs a set-theoretic symmetric difference operation on self and s. Self is replaced by the result. A symmetric difference can be defined as \( (A \cup B) \setminus (A \cap B) \).

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::symmetricDifference

(

const rw_hashset< T, H, EQ, A > &

rhs

)

Destructively performs a set-theoretic symmetric difference operation on self and s. Self is replaced by the result. A symmetric difference can be defined as \( (A \cup B) \setminus (A \cap B) \).

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::Union ( const RWTValHashSet< T, H, EQ, A > &  rhs )

inline

Destructively performs a set-theoretic union operation on self and s. Self is replaced by the result. Note the use of the uppercase 'U' in Union to avoid conflict with the C++ reserved word.

template<class T, class H = RWTHash<T>, class EQ = std::equal_to<T>, class A = std::allocator<T>>

RWTValHashSet<T, H, EQ, A>& RWTValHashSet< T, H, EQ, A >::Union

(

const rw_hashset< T, H, EQ, A > &

rhs

)

Destructively performs a set-theoretic union operation on self and s. Self is replaced by the result. Note the use of the uppercase 'U' in Union to avoid conflict with the C++ reserved word.

Friends And Related Function Documentation

template<class T , class H , class EQ , class A >

bool operator!= ( const RWTValHashSet< T, H, EQ, A > &  lhs, const RWTValHashSet< T, H, EQ, A > &  rhs  )

related

Equivalent to !(lhs == rhs).

template<class T , class H , class EQ , class A >

bool operator!= ( const RWTValHashSet< T, H, EQ, A > &  lhs, const typename RWTValHashSet< T, H, EQ, A >::container_type &  rhs  )

related

Equivalent to !(lhs == rhs).

template<class T , class H , class EQ , class A >

bool operator!= ( const typename RWTValHashSet< T, H, EQ, A >::container_type &  lhs, const RWTValHashSet< T, H, EQ, A > &  rhs  )

related

Equivalent to !(lhs == rhs).

template<class T , class H , class EQ , class A >

RWvostream & operator<< ( RWvostream &  strm, const RWTValHashSet< T, H, EQ, A > &  coll  )

related

Saves the collection coll onto the output stream strm, or a reference to it if it has already been saved.

template<class T , class H , class EQ , class A >

RWFile & operator<< ( RWFile &  file, const RWTValHashSet< T, H, EQ, A > &  coll  )

related

Saves the collection coll to the RWFile file, or a reference to it if it has already been saved.

template<class T , class H , class EQ , class A >

bool operator== ( const RWTValHashSet< T, H, EQ, A > &  lhs, const RWTValHashSet< T, H, EQ, A > &  rhs  )

related

Returns true if lhs and rhs are equal, otherwise false. Two collections are equal if both have the same number of entries, and iterating through both collections produces, in turn, individual elements that compare equal to each other.

template<class T , class H , class EQ , class A >

bool operator== ( const RWTValHashSet< T, H, EQ, A > &  lhs, const typename RWTValHashSet< T, H, EQ, A >::container_type &  rhs  )

related

Returns true if lhs and rhs are equal, otherwise false. Two collections are equal if both have the same number of entries, and iterating through both collections produces, in turn, individual elements that compare equal to each other.

template<class T , class H , class EQ , class A >

bool operator== ( const typename RWTValHashSet< T, H, EQ, A >::container_type &  lhs, const RWTValHashSet< T, H, EQ, A > &  rhs  )

related

Returns true if lhs and rhs are equal, otherwise false. Two collections are equal if both have the same number of entries, and iterating through both collections produces, in turn, individual elements that compare equal to each other.

template<class T , class H , class EQ , class A >

RWvistream & operator>> ( RWvistream &  strm, RWTValHashSet< T, H, EQ, A > &  coll  )

related

Restores the contents of the collection coll from the input stream strm.

template<class T , class H , class EQ , class A >

RWFile & operator>> ( RWFile &  file, RWTValHashSet< T, H, EQ, A > &  coll  )

related

Restores the contents of the collection coll from the RWFile file.

template<class T , class H , class EQ , class A >

RWvistream & operator>> ( RWvistream &  strm, RWTValHashSet< T, H, EQ, A > *&  p  )

related

Looks at the next object on the input stream strm and either creates a new collection off the heap and sets p to point to it, or sets p to point to a previously read instance. If a collection is created off the heap, the application is responsible for deleting it.

template<class T , class H , class EQ , class A >

RWFile & operator>> ( RWFile &  file, RWTValHashSet< T, H, EQ, A > *&  p  )

related

Looks at the next object on the stream represented by the RWFile file and either creates a new collection off the heap and sets p to point to it, or sets p to point to a previously read instance. If a collection is created off the heap, the application is responsible for deleting it.