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ISO/IEC 23270:2003

Information technology -- C# Language Specification

This standard has been revised by: ISO/IEC 23270:2006

Note: The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site



ISO/IEC 23270:2003 specifies the form and establishes the interpretation of programs written in the C# programming language. It specifies:

  • the representation of C# programs;
  • the syntax and constraints of the C# language;
  • the semantic rules for interpreting C# programs;
  • the restrictions and limits imposed by a conforming implementation of C#.

ISO/IEC 23270:2003 does not specify:

  • the mechanism by which C# programs are transformed for use by a data-processing system;
  • the mechanism by which C# applications are invoked for use by a data-processing system;
  • the mechanism by which input data are transformed for use by a C# application;
  • the mechanism by which output data are transformed after being produced by a C# application;
  • the size or complexity of a program and its data that will exceed the capacity of any specific data-processing system or the capacity of a particular processor;
  • all minimal requirements of a data-processing system that is capable of supporting a conforming implementation.


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