Cω

Cω (pronounced "see omega";[1] usually written "Cw" or "Comega" whenever the "ω" symbol is not available) is a free extension to the C# programming language, developed by the WebData team in Microsoft SQL Server in collaboration with Microsoft Research in the UK and Redmond. It was formerly known as the codenames X# (X Sharp) and Xen. It was renamed Cω after Polyphonic C#, another research language based on the join calculus, was integrated into it.

For the mathematical concept of Cω functions, see Smoothness § Differentiability classes.
Cω
Paradigmmulti-paradigm: structured, imperative, object-oriented, event-driven, functional
Designed byMicrosoft Research and
Microsoft SQL Server WebData team
DeveloperMicrosoft Research and
Microsoft SQL Server WebData team
First appeared2003
Stable release
1.0.2 / October 28, 2004 (2004-10-28)
Typing disciplinestatic, strong, safe
OSCross-platform
WebsiteMicrosoft Research page
Influenced by
C#, Polyphonic C#
Influenced
C# with LINQ, Joins Concurrency Library

Details

Cω attempts to make datastores (such as databases and XML documents) accessible with the same ease and type safety as traditional types like strings and arrays. Many of these ideas were inherited from an earlier incubation project within the WebData XML team called X# and Xen. Cω also includes new constructs to support concurrent programming; these features were largely derived from the earlier Polyphonic C# project.

First available in 2004 as a compiler preview, Cω's features were subsequently used by Microsoft in the creation of the LINQ features released in 2007 in .NET version 3.5[2] The concurrency constructs have also been released in a slightly modified form as a library, named Joins Concurrency Library, for C# and other .NET languages by Microsoft Research.[3]

References
  1. "Comega Home". Microsoft Research. Retrieved 2008-08-12.
  2. Concepts behind the C# 3.0 language | Articles | TomasP.Net Archived 2007-02-12 at the Wayback Machine
  3. "The Joins Concurrency Library". Retrieved 2007-06-08.
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