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Rationale (XRAT) - Table of Contents

Introduction

XBD Contents

XSH Contents

XCU Contents

XRAT Contents

XCURSES Contents

The Austin Group

ISO/IEC 9945

IEEE Std 1003.1

The Authorized Guide Book

Interface Counts

Index

Rationale (XRAT)

XRAT is part of the Base Specifications, Issue 7. XRAT has been published to assist in the process of review and understanding of the main text. It contains historical information concerning the contents of the Base Specifications, Issue 7 and why features were included or discarded by the standard developers. It also contains notes of interest to application programmers on recommended programming practices, emphasizing the consequences of some aspects that may not be immediately apparent.

XRAT is organized in parallel to the normative volumes of the Base Specification, with a separate appendix (A, B, and C) for each of the three normative volumes of the document: XBD, XSH, and XCU, respectively. In addition, two additional appendices are included: Appendix D, Portability Considerations and Appendix E Subprofiling Considerations. The Portability Considerations appendix includes a report on the perceived user requirements for the Base Specifications and how the facilities provided satisfy those requirements, together with guidance to writers of profiles on how to use the configurable options, limits, and optional behavior. The Subprofiling Considerations appendix satisfies the requirement that the document address subprofiling. This contains an example set of subprofiling options.