collection_adapter (STL/CLR)

Article
06/05/2017

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The latest version of this topic can be found at collection_adapter (STL/CLR).

Wraps a .NET collection for use as an STL/CLR container. A collection_adapter is a template class that describes a simple STL/CLR container object. It wraps a Base Class Library (BCL) interface, and returns an iterator pair that you use to manipulate the controlled sequence.

Syntax

template<typename Coll>  
    ref class collection_adapter;  
  
template<>  
    ref class collection_adapter<  
        System::Collections::ICollection>;  
template<>  
    ref class collection_adapter<  
        System::Collections::IEnumerable>;  
template<>  
    ref class collection_adapter<  
        System::Collections::IList>;  
template<>  
    ref class collection_adapter<  
        System::Collections::IDictionary>;  
template<typename Value>  
    ref class collection_adapter<  
        System::Collections::Generic::ICollection<Value>>;  
template<typename Value>  
    ref class collection_adapter<  
        System::Collections::Generic::IEnumerable<Value>>;  
template<typename Value>  
    ref class collection_adapter<  
        System::Collections::Generic::IList<Value>>;  
template<typename Key,  
    typename Value>  
    ref class collection_adapter<  
        System::Collections::Generic::IDictionary<Key, Value>>;

Parameters

Coll
The type of the wrapped collection.

Specializations

Specialization	Description
IEnumerable	Sequences through elements.
ICollection	Maintains a group of elements.
IList	Maintains an ordered group of elements.
IDictionary	Maintain a set of {key, value} pairs.
IEnumerable<Value>	Sequences through typed elements.
ICollection<Value>	Maintains a group of typed elements.
IList<Value>	Maintains an ordered group of typed elements.
IDictionary<Value>	Maintains a set of typed {key, value} pairs.

Members

Type Definition	Description
collection_adapter::difference_type (STL/CLR)	The type of a signed distance between two elements.
collection_adapter::iterator (STL/CLR)	The type of an iterator for the controlled sequence.
collection_adapter::key_type (STL/CLR)	The type of a dictionary key.
collection_adapter::mapped_type (STL/CLR)	The type of a dictionary value.
collection_adapter::reference (STL/CLR)	The type of a reference to an element.
collection_adapter::size_type (STL/CLR)	The type of a signed distance between two elements.
collection_adapter::value_type (STL/CLR)	The type of an element.

Member Function	Description
collection_adapter::base (STL/CLR)	Designates the wrapped BCL interface.
collection_adapter::begin (STL/CLR)	Designates the beginning of the controlled sequence.
collection_adapter::collection_adapter (STL/CLR)	Constructs an adapter object.
collection_adapter::end (STL/CLR)	Designates the end of the controlled sequence.
collection_adapter::size (STL/CLR)	Counts the number of elements.
collection_adapter::swap (STL/CLR)	Swaps the contents of two containers.

Operator	Description
collection_adapter::operator= (STL/CLR)	Replaces the stored BCL handle.

Remarks

You use this template class to manipulate a BCL container as a STL/CLR container. The collection_adapter stores a handle to a BCL interface, which in turn controls a sequence of elements. A collection_adapter object X returns a pair of input iterators X.begin() and X.end() that you use to visit the elements, in order. Some of the specializations also let you write X.size() to determine the length of the controlled sequence.

Requirements

Header: <cliext/adapter>

Namespace: cliext

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