System.Generics.Collections.TQueue.Peek

• Up to Parent: TQueue

Delphi

function Peek: T; inline;

C++

T __fastcall Peek(void);

Properties

Type	Visibility	Source	Unit	Parent
function	public	System.Generics.Collections.pas System.Generics.Collections.hpp	System.Generics.Collections	TQueue

Description

Get top item on queue.

Peek returns the top item of the queue without removing it. Count is unchanged. No event is generated. If Count is 0, an error is raised.

Peek functions similarly to Dequeue except that Dequeue removes the top item.

This is a O(1) operation.

See Also

• Count

• Dequeue

• Enqueue

• Extract

Code Examples

• Generics_Collections_TQueue (Delphi)