Forward declaration of HashSet class. More...

Inherits System::Object, and System::Collections::Generic::ICollection< T >.

Classes
class	Enumerator

Public Types
using	ThisType = System::Collections::Generic::HashSet< T >
	Self type. More...

using	ThisPtr = SharedPtr< ThisType >
	Pointer type. More...

using	set_t = std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, ASPOSE_COLLECTION_ALLOCATOR_TYPE >
	Underlying data type. More...

using	iterator = typename set_t::iterator
	Iterator type. More...

using	const_iterator = typename set_t::const_iterator
	Const iterator type. More...

using	ValueType = T
	Value type. More...

using	BaseType = ICollection< T >
	Implemented interface. More...

using	IEnumerablePtr = SharedPtr< IEnumerable< T > >
	Enumerable interface pointer. More...

using	IEnumeratorPtr = SharedPtr< IEnumerator< T > >
	Enumerator pointer. More...

Public Types inherited from System::Object
typedef SmartPtr< Object >	ptr
	Alias for smart pointer type. More...

Public Types inherited from System::Collections::Generic::ICollection< T >
typedef T	ValueType
	Value type name. More...

typedef ICollection< T >	ThisType
	Collection type name. More...

Public Types inherited from System::Collections::Generic::IEnumerable< T >
typedef IEnumerator< T >	IEnumeratorType
	Enumerator type. More...

using	ValueType = T

using	iterator = System::Details::VirtualizedIterator< T >
	Iterator type. More...

using	const_iterator = System::Details::VirtualizedConstIterator< T >
	Const iterator type. More...

using	virtualized_iterator = System::Details::VirtualizedIteratorBase< T >
	Inner iterator base type. More...

using	virtualized_iterator_element = T
	Inner iterator element type. More...

Public Member Functions
	HashSet ()
	Creates empty set. More...

	HashSet (int capacity)
	Creates empty set with specified capacity. More...

	HashSet (const SharedPtr< IEqualityComparer< T >> &comparer)

	HashSet (const SharedPtr< IEnumerable< T >> &items)
	Creates hashset based on enumerable values. More...

const_iterator	begin () const noexcept

const_iterator	end () const noexcept

const_iterator	cbegin () const noexcept

const_iterator	cend () const noexcept

IEnumeratorPtr	GetEnumerator () override

int	get_Count () const override

void	Add (const T &item) override

bool	TryAdd (const T &item)

bool	Remove (const T &item) override

void	Clear () override
	Deletes all elements in set. More...

bool	Contains (const T &item) const override

set_t &	data ()

const set_t &	data () const

void	_add_range (std::initializer_list< T > list)

void	CopyTo (ArrayPtr< T > arr, int index) override

System::Details::VirtualizedIteratorBase< T > *	virtualizeBeginIterator () override

System::Details::VirtualizedIteratorBase< T > *	virtualizeEndIterator () override

System::Details::VirtualizedIteratorBase< T > *	virtualizeBeginConstIterator () const override

System::Details::VirtualizedIteratorBase< T > *	virtualizeEndConstIterator () const override

virtual int	get_Count () const=0
	Keeping get_Count() from hiding. More...

Public Member Functions inherited from System::Object
ASPOSECPP_SHARED_API	Object ()
	Creates object. Initializes all internal data structures. More...

virtual ASPOSECPP_SHARED_API	~Object ()
	Destroys object. Frees all internal data structures. More...

ASPOSECPP_SHARED_API	Object (Object const &x)
	Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...

Object &	operator= (Object const &x)
	Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...

Object *	SharedRefAdded ()
	Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

int	SharedRefRemovedSafe ()
	Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

int	RemovedSharedRefs (int count)
	Decreases shared reference count by specified value. More...

Detail::SmartPtrCounter *	WeakRefAdded ()
	Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

void	WeakRefRemoved ()
	Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...

Detail::SmartPtrCounter *	GetCounter ()
	Gets reference counter data structure associated with the object. More...

int	SharedCount () const
	Gets current value of shared reference counter. More...

ASPOSECPP_SHARED_API void	Lock ()
	Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...

ASPOSECPP_SHARED_API void	Unlock ()
	Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...

virtual ASPOSECPP_SHARED_API bool	Equals (ptr obj)
	Compares objects using C# Object.Equals semantics. More...

virtual ASPOSECPP_SHARED_API int32_t	GetHashCode () const
	Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...

virtual ASPOSECPP_SHARED_API String	ToString () const
	Analog of C# Object.ToString() method. Enables converting custom objects to string. More...

virtual ASPOSECPP_SHARED_API ptr	MemberwiseClone () const
	Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...

virtual ASPOSECPP_SHARED_API const TypeInfo &	GetType () const
	Gets actual type of object. Analog of C# System.Object.GetType() call. More...

virtual ASPOSECPP_SHARED_API bool	Is (const TypeInfo &targetType) const
	Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...

virtual ASPOSECPP_SHARED_API void	SetTemplateWeakPtr (uint32_t argument)
	Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...

virtual ASPOSECPP_SHARED_API bool	FastCast (const Details::FastRttiBase &helper, void **out_ptr) const
	For internal purposes only. More...

template<>
bool	Equals (float const &objA, float const &objB)

template<>
bool	Equals (double const &objA, double const &objB)

template<>
bool	ReferenceEquals (String const &str, std::nullptr_t)

template<>
bool	ReferenceEquals (String const &str1, String const &str2)

Public Member Functions inherited from System::Collections::Generic::ICollection< T >
virtual bool	get_IsReadOnly () const

ICollection &	operator= (ICollection &&) noexcept

ICollection &	operator= (const ICollection &)

	ICollection ()
	Default constructor. More...

	ICollection (const ICollection &)
	Copy constructor. More...

	ICollection (ICollection &&) noexcept
	Move constructor. More...

virtual	~ICollection ()
	Destructor. More...

SharedPtr< Object >	get_SyncRoot () const
	Gets the object the collection is being synchronized through. More...

Public Member Functions inherited from System::Collections::Generic::IEnumerable< T >
T	LINQ_ElementAt (int index)

T	LINQ_First ()

T	LINQ_First (const Func< T, bool > &predicate)

T	LINQ_FirstOrDefault ()

T	LINQ_FirstOrDefault (std::function< bool(T)> predicate)

T	LINQ_Last ()

T	LINQ_LastOrDefault ()

SharedPtr< List< T > >	LINQ_ToList ()

int	LINQ_Count ()

int	LINQ_Count (const Func< T, bool > &predicate)

System::ArrayPtr< T >	LINQ_ToArray ()

bool	LINQ_All (std::function< bool(T)> predicate)

bool	LINQ_Any ()

bool	LINQ_Any (std::function< bool(T)> predicate)

SharedPtr< IEnumerable< T > >	LINQ_Where (std::function< bool(T)> predicate)

bool	LINQ_Contains (T value)

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Cast ()

template<typename Key >
SharedPtr< IEnumerable< T > >	LINQ_OrderBy (const Func< T, Key > &keySelector)

template<typename Key >
SharedPtr< IEnumerable< T > >	LINQ_OrderByDescending (const Func< T, Key > &keySelector)

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_OfType ()

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Select (const Func< T, ResultType > &selector)

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_Select (const Func< T, int32_t, ResultType > &selector)

SharedPtr< IEnumerable< T > >	LINQ_Concat (SharedPtr< IEnumerable< T >> sequence)

template<typename Key >
System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, T > > > >	LINQ_GroupBy (System::Func< T, Key > keyPredicate)

template<typename ResultType >
SharedPtr< IEnumerable< ResultType > >	LINQ_SelectMany (const Func< T, SharedPtr< IEnumerable< ResultType >>> &selector)

iterator	begin ()

iterator	end ()

const_iterator	begin () const

const_iterator	end () const

const_iterator	cbegin () const

const_iterator	cend () const

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Cast ()

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_OfType ()

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Select (const Func< Source, Result > &selector)

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_Select (const Func< Source, int32_t, Result > &selector)

template<typename Key >
SharedPtr< IEnumerable< Source > >	LINQ_OrderBy (const Func< Source, Key > &keySelector)

template<typename Key >
SharedPtr< IEnumerable< Source > >	LINQ_OrderByDescending (const Func< Source, Key > &keySelector)

template<typename Key >
SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Source > > > >	LINQ_GroupBy (System::Func< Source, Key > keyPredicate)

template<typename Result >
SharedPtr< IEnumerable< Result > >	LINQ_SelectMany (const Func< Source, SharedPtr< IEnumerable< Result >>> &selector)

Additional Inherited Members
Static Public Member Functions inherited from System::Object
static bool	ReferenceEquals (ptr const &objA, ptr const &objB)
	Compares objects by reference. More...

template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, T const &objB)
	Compares objects by reference. More...

template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type	ReferenceEquals (T const &objA, std::nullptr_t)
	Reference-compares value type object with nullptr. More...

template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares reference type objects in C# style. More...

template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type	Equals (T1 const &objA, T2 const &objB)
	Compares value type objects in C# style. More...

static const TypeInfo &	Type ()
	Implements C# typeof(System.Object) construct. More...

Detailed Description

template<typename T>
class System::Collections::Generic::HashSet< T >

Forward declaration of HashSet class.

Set implementation based on hashing. Objects of this class should only be allocated using System::MakeObject() function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into System::SmartPtr pointer and use this pointer to pass it to functions as argument.

Parameters

T

Element type.

   #include "system/array.h"
   #include "system/collections/hashset.h"
   #include "system/smart_ptr.h"
  
   void PrintValues(const System::SharedPtr<const System::Collections::Generic::IEnumerable<int>> & collection)
   {
     for (auto item: collection)
     {
       std::cout << item << ' ';
     }
     std::cout << std::endl;
   }
  
   int main()
   {
     // Create and fill instances of the HashSet<int> type.
     auto set1 = System::MakeObject<System::Collections::Generic::HashSet<int>>();
     auto set2 = System::MakeObject<System::Collections::Generic::HashSet<int>>();
  
     for (auto i = 0; i < 10; i++)
     {
       set1->Add(i);
       set2->Add(i * 3);
     }
  
     // Print items of the sets.
     PrintValues(set1);
     PrintValues(set2);
  
     // Copy values of the sets to the array and print values.
     auto arr = System::MakeArray<int>(set1->get_Count() + set2->get_Count());
     set1->CopyTo(arr, 0);
     set2->CopyTo(arr, set1->get_Count());
     PrintValues(arr);
  
     return 0;
   }
   /*
*  This code example produces the following output:
*  8 0 1 2 3 4 5 6 7 9
*  24 0 3 6 9 12 15 18 21 27
*  8 0 1 2 3 4 5 6 7 9 24 0 3 6 9 12 15 18 21 27
   */

Member Typedef Documentation

◆ BaseType

template<typename T >

using System::Collections::Generic::HashSet< T >::BaseType = ICollection<T>

Implemented interface.

◆ const_iterator

template<typename T >

using System::Collections::Generic::HashSet< T >::const_iterator = typename set_t::const_iterator

Const iterator type.

◆ IEnumerablePtr

template<typename T >

using System::Collections::Generic::HashSet< T >::IEnumerablePtr = SharedPtr<IEnumerable<T> >

Enumerable interface pointer.

◆ IEnumeratorPtr

template<typename T >

using System::Collections::Generic::HashSet< T >::IEnumeratorPtr = SharedPtr<IEnumerator<T> >

Enumerator pointer.

◆ iterator

template<typename T >

using System::Collections::Generic::HashSet< T >::iterator = typename set_t::iterator

Iterator type.

◆ set_t

template<typename T >

using System::Collections::Generic::HashSet< T >::set_t = std::unordered_set<T, EqualityComparerHashAdapter<T>, EqualityComparerAdapter<T>, ASPOSE_COLLECTION_ALLOCATOR_TYPE>

Underlying data type.

◆ ThisPtr

template<typename T >

using System::Collections::Generic::HashSet< T >::ThisPtr = SharedPtr<ThisType>

Pointer type.

◆ ThisType

template<typename T >

using System::Collections::Generic::HashSet< T >::ThisType = System::Collections::Generic::HashSet<T>

Self type.

◆ ValueType

template<typename T >

using System::Collections::Generic::HashSet< T >::ValueType = T

Value type.

Constructor & Destructor Documentation

◆ HashSet() [1/4]

template<typename T >

System::Collections::Generic::HashSet< T >::HashSet ( )

inline

Creates empty set.

◆ HashSet() [2/4]

template<typename T >

System::Collections::Generic::HashSet< T >::HashSet ( int capacity )

inline

Creates empty set with specified capacity.

◆ HashSet() [3/4]

template<typename T >

System::Collections::Generic::HashSet< T >::HashSet ( const SharedPtr< IEqualityComparer< T >> & comparer )

inline

Creates empty set that uses the specified equality comparer

Parameters

comparer Comparer object to associate with hashset.

◆ HashSet() [4/4]

template<typename T >

System::Collections::Generic::HashSet< T >::HashSet ( const SharedPtr< IEnumerable< T >> & items )

inline

Creates hashset based on enumerable values.

Member Function Documentation

◆ _add_range()

template<typename T >

void System::Collections::Generic::HashSet< T >::_add_range ( std::initializer_list< T > list )

inline

C++ specific

Parameters

list	Range to insert into container.

◆ Add()

template<typename T >

void System::Collections::Generic::HashSet< T >::Add ( const T & item )

inlineoverridevirtual

Adds element into set.

Parameters

item	Element to add.

Implements System::Collections::Generic::ICollection< T >.

◆ begin()

template<typename T >

const_iterator System::Collections::Generic::HashSet< T >::begin ( ) const

inlinenoexcept

Gets iterator to the first element of the const-qualified collection.

Returns: An iterator pointing to the first element in the const-qualified instance of the hash set.

◆ cbegin()

template<typename T >

const_iterator System::Collections::Generic::HashSet< T >::cbegin ( ) const

inlinenoexcept

Gets iterator to the first const-qualified element of collection.

Returns: An iterator pointing to the first const-qualified element in the hash set.

◆ cend()

template<typename T >

const_iterator System::Collections::Generic::HashSet< T >::cend ( ) const

inlinenoexcept

Gets iterator for a non-existent const-qualified element behind the end of the collection.

Returns: An iterator pointing to the theoretical const-qualified element placed after the end element in the hash set.

◆ Clear()

template<typename T >

void System::Collections::Generic::HashSet< T >::Clear ( )

inlineoverridevirtual

Deletes all elements in set.

Implements System::Collections::Generic::ICollection< T >.

◆ Contains()

template<typename T >

bool System::Collections::Generic::HashSet< T >::Contains ( const T & item ) const

inlineoverridevirtual

Checks if element is present in set.

Parameters

item	Item to look for.

Returns: True if item is present in set, false otherwise.

Implements System::Collections::Generic::ICollection< T >.

◆ CopyTo()

template<typename T >

void System::Collections::Generic::HashSet< T >::CopyTo	(	ArrayPtr< T >	arr,
		int	index
	)

inlineoverridevirtual

Copies hash contents into existing array elements.

Parameters

arr	Destination array.
index	Destination array beginning index.

Implements System::Collections::Generic::ICollection< T >.

◆ data() [1/2]

template<typename T >

set_t& System::Collections::Generic::HashSet< T >::data ( )

inline

Underlying data structure accessor.

Returns: Reference to underlying data structure.

◆ data() [2/2]

template<typename T >

const set_t& System::Collections::Generic::HashSet< T >::data ( ) const

inline

Underlying data structure accessor.

Returns: Const reference to underlying data structure.

◆ end()

template<typename T >

const_iterator System::Collections::Generic::HashSet< T >::end ( ) const

inlinenoexcept

Gets iterator for a non-existent element behind the end of the const-qualified collection.

Returns: An iterator pointing to the theoretical element placed after the end element in the const-qualified instance of the hash set.

◆ get_Count() [1/2]

template<typename T >

int System::Collections::Generic::HashSet< T >::get_Count ( ) const

inlineoverridevirtual

Gets number of elements in set.

Returns: Actual number of elements.

Implements System::Collections::Generic::ICollection< T >.

◆ get_Count() [2/2]

template<typename T >

virtual int System::Collections::Generic::ICollection< T >::get_Count

Keeping get_Count() from hiding.

◆ GetEnumerator()

template<typename T >

IEnumeratorPtr System::Collections::Generic::HashSet< T >::GetEnumerator ( )

inlineoverridevirtual

Creates enumerator.

Returns: Newly created enumerator.

Implements System::Collections::Generic::IEnumerable< T >.

◆ Remove()

template<typename T >

bool System::Collections::Generic::HashSet< T >::Remove ( const T & item )

inlineoverridevirtual

Removes element from set.

Parameters

item	Element to remove.

Returns: True if element was found and deleted, false otherwise.

Implements System::Collections::Generic::ICollection< T >.

◆ TryAdd()

template<typename T >

bool System::Collections::Generic::HashSet< T >::TryAdd ( const T & item )

inline

Adds element into set.

Parameters

item	Item to add.

Returns: True if element was added, false if already exists.

◆ virtualizeBeginConstIterator()

template<typename T >

System::Details::VirtualizedIteratorBase<T>* System::Collections::Generic::HashSet< T >::virtualizeBeginConstIterator ( ) const

inlineoverridevirtual

Gets the implementation of begin const iterator for the current container.

Returns: Pointer to the newly created iterator kernel object.

Reimplemented from System::Collections::Generic::IEnumerable< T >.

◆ virtualizeBeginIterator()

template<typename T >

System::Details::VirtualizedIteratorBase<T>* System::Collections::Generic::HashSet< T >::virtualizeBeginIterator ( )

inlineoverridevirtual

Gets the implementation of begin iterator for the current container.

Returns: Pointer to the newly created iterator kernel object.

Reimplemented from System::Collections::Generic::IEnumerable< T >.

◆ virtualizeEndConstIterator()

template<typename T >

System::Details::VirtualizedIteratorBase<T>* System::Collections::Generic::HashSet< T >::virtualizeEndConstIterator ( ) const

inlineoverridevirtual

Gets the implementation of end const iterator for the current container.

Returns: Pointer to the newly created iterator kernel object.

Reimplemented from System::Collections::Generic::IEnumerable< T >.

◆ virtualizeEndIterator()

template<typename T >

System::Details::VirtualizedIteratorBase<T>* System::Collections::Generic::HashSet< T >::virtualizeEndIterator ( )

inlineoverridevirtual

Gets the implementation of end iterator for the current container.

Returns: Pointer to the newly created iterator kernel object.

Reimplemented from System::Collections::Generic::IEnumerable< T >.

Classes

Public Types

Public Member Functions

Additional Inherited Members

Detailed Description

template<typename T> class System::Collections::Generic::HashSet< T >

Member Typedef Documentation

◆ BaseType

◆ const_iterator

◆ IEnumerablePtr

◆ IEnumeratorPtr

◆ iterator

◆ set_t

◆ ThisPtr

◆ ThisType

◆ ValueType

Constructor & Destructor Documentation

◆ HashSet() [1/4]

◆ HashSet() [2/4]

◆ HashSet() [3/4]

◆ HashSet() [4/4]

Member Function Documentation

◆ _add_range()

◆ Add()

◆ begin()

◆ cbegin()

◆ cend()

◆ Clear()

◆ Contains()

◆ CopyTo()

◆ data() [1/2]

◆ data() [2/2]

◆ end()

◆ get_Count() [1/2]

◆ get_Count() [2/2]

◆ GetEnumerator()

◆ Remove()

◆ TryAdd()

◆ virtualizeBeginConstIterator()

◆ virtualizeBeginIterator()

◆ virtualizeEndConstIterator()

◆ virtualizeEndIterator()

template<typename T>
class System::Collections::Generic::HashSet< T >