System::Collections::Generic::IEnumerator< T > Class Template Referenceabstract

Inherits System::IDisposable.

Inherited by System::Array< T >::Enumerator, System::Collections::Generic::LinkedList< T >::Enumerator, System::Linq::Details::EmptyEnumerator< T >, and System::Xml::XmlAttributeCollection::Enumerator.

Public Types

typedef T ValueType
 Value type. More...
 
- Public Types inherited from System::Object
typedef SmartPtr< Objectptr
 Alias for smart pointer type. More...
 

Public Member Functions

virtual CODEPORTING_CURRENT_RETTYPE (T) Current() const
 
virtual CODEPORTING_CURRENT_RETTYPE (T) get_Current() const =0
 
virtual bool MoveNext ()=0
 
virtual void Reset ()
 Resets enumerator to position before first element. More...
 
- Public Member Functions inherited from System::IDisposable
virtual void Dispose ()
 Does nothing. 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...
 
Objectoperator= (Object const &x)
 Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
 
ObjectSharedRefAdded ()
 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 TypeInfoGetType () 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)
 

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 TypeInfoType ()
 Implements C# typeof(System.Object) construct. More...
 

Detailed Description

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

Interface of enumerator which can be used to iterate through some elements. 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.

#include <system/collections/list.h>
#include <system/smart_ptr.h>
using namespace System;
int main()
{
// Create the List-class instance.
auto collection = MakeObject<List<int>>();
// Fill the list.
collection->Add(1);
collection->Add(2);
collection->Add(3);
// Get the enumerator of the list.
auto enumerator = collection->GetEnumerator();
while (enumerator->MoveNext())
{
// Get the current element and print it.
std::cout << enumerator->get_Current() << ' ';
}
// Reset the enumerator.
enumerator->Reset();
return 0;
}
/*
* This code example produces the following output:
* 1 2 3
*/
Template Parameters
TElement type.

Member Typedef Documentation

◆ ValueType

template<typename T>
typedef T System::Collections::Generic::IEnumerator< T >::ValueType

Value type.

Member Function Documentation

◆ CODEPORTING_CURRENT_RETTYPE() [1/2]

◆ CODEPORTING_CURRENT_RETTYPE() [2/2]

◆ MoveNext()

template<typename T>
virtual bool System::Collections::Generic::IEnumerator< T >::MoveNext ( )
pure virtual

Moves enumerator to the next element. If no element was referenced before, sets reference to the first element available. If container end was hit, does nothing.

Returns
True if some element is available after call, false otherwise.

Implemented in System::Collections::Generic::Details::EnumeratorSelectManyAdapter< Source, Result >, System::Collections::Generic::Details::EnumeratorSelectIndexAdapter< Source, Result >, System::Collections::Generic::Details::EnumeratorSelectAdapter< Source, Result >, System::Array< T >::Enumerator, System::Collections::Generic::Details::EnumeratorOfTypeAdapter< Source, Result >, System::Collections::Generic::LinkedList< T >::Enumerator, System::Collections::Generic::Details::EnumeratorCastAdapter< Source, Result >, System::Collections::Generic::ReverseEnumerator< Container, Element >, System::Collections::Generic::ReverseEnumerator< stack_t >, System::Collections::BitArray::Enumerator, System::Xml::XmlAttributeCollection::Enumerator, System::Collections::Generic::BaseEnumerator< Container, Element >, System::Collections::Generic::BaseEnumerator< std::vector< System::String >, typename std::vector< System::String > ::value_type >, System::Collections::Generic::BaseEnumerator< storage_type, typename storage_type ::value_type >, System::Collections::Generic::BaseEnumerator< X509ExtensionCollection::vector_t, typename X509ExtensionCollection::vector_t ::value_type >, System::Collections::Generic::BaseEnumerator< set_t, typename set_t ::value_type >, System::Collections::Generic::BaseEnumerator< queue_t, typename queue_t ::value_type >, System::Collections::Generic::BaseEnumerator< Dict::map_t, TValue >, System::Collections::Generic::BaseEnumerator< Dict::map_t, TKey >, System::Collections::Generic::BaseEnumerator< vector_t, typename vector_t ::value_type >, System::Collections::Generic::BaseEnumerator< map_t, KVPair >, System::Xml::XPath::XPathNodeIterator, and System::Linq::Details::EmptyEnumerator< T >.

◆ Reset()

template<typename T>
virtual void System::Collections::Generic::IEnumerator< T >::Reset ( )
inlinevirtual

Resets enumerator to position before first element.

Reimplemented in System::Collections::Generic::Details::EnumeratorSelectManyAdapter< Source, Result >, System::Collections::Generic::Details::EnumeratorSelectIndexAdapter< Source, Result >, System::Collections::Generic::Details::EnumeratorSelectAdapter< Source, Result >, System::Array< T >::Enumerator, System::Collections::Generic::Details::EnumeratorOfTypeAdapter< Source, Result >, System::Collections::Generic::Details::EnumeratorCastAdapter< Source, Result >, System::Collections::Generic::ReverseEnumerator< Container, Element >, System::Collections::Generic::ReverseEnumerator< stack_t >, System::Collections::BitArray::Enumerator, System::Collections::Generic::BaseEnumerator< Container, Element >, System::Collections::Generic::BaseEnumerator< std::vector< System::String >, typename std::vector< System::String > ::value_type >, System::Collections::Generic::BaseEnumerator< storage_type, typename storage_type ::value_type >, System::Collections::Generic::BaseEnumerator< X509ExtensionCollection::vector_t, typename X509ExtensionCollection::vector_t ::value_type >, System::Collections::Generic::BaseEnumerator< set_t, typename set_t ::value_type >, System::Collections::Generic::BaseEnumerator< queue_t, typename queue_t ::value_type >, System::Collections::Generic::BaseEnumerator< Dict::map_t, TValue >, System::Collections::Generic::BaseEnumerator< Dict::map_t, TKey >, System::Collections::Generic::BaseEnumerator< vector_t, typename vector_t ::value_type >, System::Collections::Generic::BaseEnumerator< map_t, KVPair >, and System::Linq::Details::EmptyEnumerator< T >.