vector (STL/CLR)

The template class describes an object that controls a varying-length sequence of elements that has random access. You use the container vector to manage a sequence of elements as a contiguous block of storage. The block is implemented as an array that grows on demand.

In the description below, GValue is the same as Value unless the latter is a ref type, in which case it is Value^.

template<typename Value>
    ref class vector
        :   public
        System::ICloneable,
        System::Collections::IEnumerable,
        System::Collections::ICollection,
        System::Collections::Generic::IEnumerable<GValue>,
        System::Collections::Generic::ICollection<GValue>,
        System::Collections::Generic::IList<GValue>,
        Microsoft::VisualC::StlClr::IVector<GValue>
    { ..... };

Parameters

• Value
  The type of an element in the controlled sequence.

Members

Interfaces

Remarks

The object allocates and frees storage for the sequence it controls through a stored array of Value elements, which grows on demand. Growth occurs in such a way that the cost of appending a new element is amortized constant time. In other words, the cost of adding elements at the end does not increase, on average, as the length of the controlled sequence gets larger. Thus, a vector is a good candidate for the underlying container for template class stack (STL/CLR).

A vector supports random-access iterators, which means you can refer to an element directly given its numerical position, counting from zero for the first (front) element, to vector::size (STL/CLR)() - 1 for the last (back) element. It also means that a vector is a good candidate for the underlying container for template class priority_queue (STL/CLR).

A vector iterator stores a handle to its associated vector object, along with the bias of the element it designates. You can use iterators only with their associated container objects. The bias of a vector element is the same as its position.

Inserting or erasing elements can change the element value stored at a given position, so the value designated by an iterator can also change. (The container may have to copy elements up or down to create a hole before an insert or to fill a hole after an erase.) Nevertheless, a vector iterator remains valid so long as its bias is in the range [0, vector::size (STL/CLR)()]. Moreover, a valid iterator remains dereferencable -- you can use it to access or alter the element value it designates -- so long as its bias is not equal to size().

Erasing or removing an element calls the destructor for its stored value. Destroying the container erases all elements. Thus, a container whose element type is a ref class ensures that no elements outlive the container. Note, however, that a container of handles does not destroy its elements.

Requirements

Header: <cliext/vector>

Namespace: cliext

See Also

Concepts

deque (STL/CLR)

list (STL/CLR)

priority_queue (STL/CLR)

queue (STL/CLR)

stack (STL/CLR)