vefcatalog.blogg.se - C programming stack vs queue

I've tried to do a fair amount of due diligence on the subject, but the internet mostly talks about stack architectures and register architectures. I'm wondering if any other programming language designs have noticed this and sought this clarification, particularly at the machine instruction level. I have found that when trying to schedule low level assembly code, operations upon FIFO queues produce natural orderings of pipelined instructions whereas LIFO stacks produce complications and convolutions. For processing operations, consider concatenative languages such as Forth, whose operands are on a stack. Provides links to feature documentation for C#, Visual Basic, and Visual C++, and to supporting technologies such as reflection.Can anyone give examples of programming languages that are based on the use of queues to call functions and process operations, not stacks? Like there is no program stack, there is a program queue. Hashtable and Dictionary Collection Typesĭescribes the features of generic and nongeneric hash-based dictionary types.ĭescribes classes that provide sorting functionality for lists and sets.ĭescribes the generics feature, including the generic collections, delegates, and interfaces provided by. NET, including stacks, queues, lists, arrays, and dictionaries.

Related topics Titleĭiscusses the various collection types available in.

They can filter, order, and group data.įor more information, see LINQ to Objects (C#), LINQ to Objects (Visual Basic), and Parallel LINQ (PLINQ).

They are concise and easier to understand.

LINQ queries have several benefits over standard constructs like foreach loops: The LINQ to Objects feature provides a common pattern for accessing in-memory objects of any type that implements IEnumerable or IEnumerable. You can only access the elements of a Hashtable or a Dictionary by the element's key. You can access the elements of a SortedList or a KeyedCollection by either the key or the element's index. The SortedList class and the SortedList generic class provide sorted versions of the Hashtable class and the Dictionary generic class.Īll collections use zero-based indexes except Array, which allows arrays that are not zero-based. These base classes include:Ĭollections vary in how they store, sort, and compare elements, and how they perform searches. However, if your language does not support generics, the System.Collections namespace includes abstract base classes that you can extend to create collection classes that are strongly typed. For example, adding an element of any type other than an Int32 to a List collection causes a compile-time error. Generic collections are the best solution to strong typing. The Stack and Stack classes provide last-in-first-out lists. The Queue and Queue classes provide first-in-first-out lists.

When you need efficient multi-threaded collection access, use the generic collections in the namespace. As a result, it behaves both like a list and like a dictionary. The KeyedCollection class is unique because it is a list of values with keys embedded within the values. In collections based on the IDictionary interface, every element contains both a key and a value. In collections based on IList or directly on ICollection, every element contains only a value. IList and IDictionary and their generic counterparts all derive from these two interfaces. Collection types represent different ways to collect data, such as hash tables, queues, stacks, bags, dictionaries, and lists.Īll collections are based on the ICollection or ICollection interfaces, either directly or indirectly.