|Operating System and Languages: Internationalized System Calls and Libraries Extended
|Document Number: X98SE
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Internationalized System Calls and Libraries Extended
This Product Standard is a substantially extended version of the Internationalized System Calls and Libraries Product Standard. The extensions are a set of additional 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 Internationalized Systems Calls and Libraries Product Standard, a single common API specification capable of supporting a wide range of historical applications, in addition to standard Base/POSIX-conformant applications.
System Interface Definitions, Issue 4, Version 21, Glyphs contained in Table 4-1, Portable Character Set.
System Interfaces and Headers, Issue 4, Version 2,2 with the following Feature Groups defined as mandatory:
C Language. Dialect ISO C. ISO C source programs invoking the services of this Product Standard must be supported by the registered product.
ISO/IEC 9945-1:1990 (POSIX-1).3
ISO/IEC 9945-2:1993 (POSIX-2)4 for the POSIX-2 C Language binding calls.
ISO/IEC 9899:1990 (C Language).5
Test Reports from currently authorized releases of the VSX4 and VSU4 Test Suites.
As this Product Standard is a superset of that for Internationalized System Calls and Libraries, there are no issues in migrating to it from that Product Standard. Issues involved in migration from the XPG3 Internationalized System Calls and Libraries Product Standard are identical to those described in the Internationalized System Calls and Libraries Product Standard.
It should be noted, however, that this environment is provided primarily to support existing historical applications. Applications written to the standards-based Internationalized System Calls and Libraries Product Standard will port to the widest range of systems.
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