Forward declaration of HashSet class. More...

Inherits System::Collections::Generic::BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >.

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

using	BaseType = BaseSet< T, std::unordered_set< T, EqualityComparerHashAdapter< T >, EqualityComparerAdapter< T >, typename System::Details::CollectionHelpers::ContainerPointerMode< T >::allocator_type > >
	Base type. More...

using	ThisPtr = SharedPtr< ThisType >
	Pointer type. 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 ()
	RTTI information. 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...

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)

Protected Member Functions
	~HashSet () override
	Destructor. More...

Protected Member Functions inherited from System::Collections::Generic::IEnumerable< T >
	~IEnumerable () override
	Destructor. More...

virtualized_iterator *	GetEnumeratorAsVirtualizedIterator ()

virtualized_iterator *	GetEnumeratorAsVirtualizedIterator () const

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 = BaseSet<T, std::unordered_set<T, EqualityComparerHashAdapter<T>, EqualityComparerAdapter<T>, typename System::Details::CollectionHelpers::ContainerPointerMode<T>::allocator_type> >

Base 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.

Constructor & Destructor Documentation

◆ HashSet() [1/4]

template<typename T >

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

inline

RTTI information.

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.

◆ ~HashSet()

template<typename T >

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

inlineoverrideprotected

Destructor.

Public Types

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

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

Member Typedef Documentation

◆ BaseType

◆ ThisPtr

◆ ThisType

Constructor & Destructor Documentation

◆ HashSet() [1/4]

◆ HashSet() [2/4]

◆ HashSet() [3/4]

◆ HashSet() [4/4]

◆ ~HashSet()

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