Open Brand

Internationalized System Calls and Libraries Extd.

Category: Operating System Services [SE]

This Product Standard is a substantially extended version of the Internationalized System Calls and Libraries Product Standard. The extensions are a set of application programming interfaces taken from the most widely available operating systems traditionally, but not accurately called UNIX, with the objective of producing, in conjunction with the Commands and Utilities Product Standard, a single common API specification capable of supporting a large range of historical applications, in addition to standard Base/POSIX-conformant applications.

Product Standards are explained in Practical Guide to the Open Brand

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Referenced Documents:

System Interfaces and Headers, Issue 4, Version 2

with X/Open UNIX_EXTENSIONS, POSIX-2 C Language Binding, shared

memory and enhanced internationalisation

System Interface Definitions, Issue 4, Version 2

ISO/IEC 9899:1990, Programming Languages - C (technically identifical to ANS X3.159-1989). 1:1995, Multibyte Support Extension (MSE) for ISO C.

ISO/IEC 9945-1:1990, Information Technology - Portable Operating Systems Interface (POSIX) - Part 1: Systems Application Programming Interface (API) [C Language] (identifical to IEEE Std. 1003.1-1990)

ISO/IEC 9945-2:1993 (POSIX-2) for the optional POSIX-2 C-Language binding calls.

Conformance Statement Questionnaires:

CSQ for Internationalized System Calls and Libraries Extd. Product Standard

Test Suites:

VSX4 , and VSU4

Present in UNIX 95 Product Standard(s)