Order Number: AA-PX2BH-TE

This manual contains information about developing DIGITAL C++ programs on Compaq's DIGITAL UNIX systems. It describes language features specific to DIGITAL C++ for Compaq's DIGITAL UNIX.

Revision/Update Information: This is a revised manual, replacing AA-PX2BG-TE

Software Version: DIGITAL C++ Version 6.1 for Compaq's DIGITAL UNIX

Digital Equipment Corporation
Maynard, Massachusetts

The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that may appear in this document.

The software described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license.

Copyright ©1993-1998

The following are trademarks of Digital Equipment Corporation: DEC, DEC FUSE, DECthreads, Ladebug, OpenVMS, ULTRIX, VAX, VAX DOCUMENT, VMS, the DIGITAL C++ logo, and the DIGITAL logo.

The following are third-party trademarks:

AT&T is a registered trademark of American Telephone and Telegraph Company.

Hewlett-Packard is a registered tradmark of the Hewlett-Packard Company.

IEEE is a registered trademark of the Institute of Electrical and Electronics Engineers, Inc.

Microsoft is a registered trademark, and Visual C++ is a trademark of Microsoft Corporation.

OSF/1 is a registered tradmark of the Open Software Foundation, Inc.

POSIX is a registered certification mark of the Institute of Electrical and Electronic Engineers.

UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Ltd.

Portions of the ANSI C++ Standard Library have been implemented using source licensed from and copyrighted by Rogue Wave Software, Inc.

Information pertaining to the C++ Standard Library has been edited and reprinted with permission of, Rogue Wave Software, Inc. All rights reserved.

Portions copyright 1994-1996 Rogue Wave Software, Inc.

ZK6388

This document is available on CD-ROM.

Contents

Index

This manual contains information for developing and debugging DIGITAL C++ programs on DIGITAL UNIX systems, and includes information on other DIGITAL UNIX features and tools that work with DIGITAL C++.

Intended Audience

This manual is intended for experienced programmers who need to develop DIGITAL C++ programs on DIGITAL UNIX systems. Users of this manual should have a basic understanding of the C++ language and some familiarity with the DIGITAL UNIX operating system.

Structure of this Document

This manual is organized as follows:

• Chapter 1 shows how to create, compile, link, and run DIGITAL C++ programs.
• Chapter 2 describes features and characteristics that are specific to the DIGITAL C++ implementation.
• Chapter 3 describes how to modify existing C header files to be accepted by DIGITAL C++.
• Chapter 4 contains tips for moving applications built with other C++ implementations to DIGITAL C++.
• Chapter 5 describes how to use templates with DIGITAL C++.
• Chapter 6 describes how to use precompiled headers with DIGITAL C++.
• Chapter 7 describes the DIGITAL C++ implementation of the C++ Standard Library.
• Chapter 8 explains how to use C++ exception handling.
• Chapter 9 describes how to use the Ladebug debugger.
• The cxx(1) reference page describes command line options.

Associated Documents

The following documents contain information associated with topics in this manual:

• Stroustrup, Bjarne. The C++ Programming Language, 3rd Edition. Reading, Massachusetts: Addison-Wesley, 1997.
  Provides an exhaustive introduction to the C++ programming language, including sophisticated language features. This book also includes the text but not the annotations of The Annotated C++ Reference Manual.
• DEC C++ Class Library Reference Manual
  This manual describes the class library packages supplied with DIGITAL C++.
• DIGITAL C++ Installation Guide for Compaq's DIGITAL UNIX
  This document supplies the information necessary to install DIGITAL C++.
• The AT&T C++ Language System, Release 2.0, Library Manual
  This document describes the AT&T class library package.

Related Documents

The following documents are not included in the DIGITAL C++ documentation set. Refer to them for additional information on the C++ programming language, DEC C, or DIGITAL UNIX programming.

• Stroustrup, Bjarne and Margaret Ellis. The Annotated C++ Reference Manual. Reading, Massachusetts: Addison-Wesley, 1990.
  This text contains the current language definition of C++.
• Carroll, Martin D. and Margaret E. Ellis. Designing and Coding Reusable C++. Reading, Massachusetts: Addison-Wesley, 1995.
  This text provides practical information for designing and implementing C++ programs.
• Myers, Scott. Effective C++: 50 Specific Ways to Improve Your Programs and Designs, 3rd edition. Reading, Massachusetts: Addison-Wesley, 1997.
• Myers, Scott. More Effective C++: 35 New Ways to Improve Your Programs and Designs. Reading, Massachusetts: Addison-Wesley, 1995.
  These texts provide practical information for designing and implementing C++ programs.
• DIGITAL UNIX Programmer's Guide
  This guide describes the programming environment on the DIGITAL UNIX operating system, emphasizing the C programming language.
• DEC C Language Reference Manual
  Provides a complete technical description of the C language as specified by the ANSI X3J11 committee. This manual also fully describes all extensions to this standard implemented in DEC C.
• ULTRIX to DIGITAL UNIX Migration Guide
  Describes how to migrate from an ULTRIX system to a DIGITAL UNIX system. This book includes information on porting applications from ULTRIX to DIGITAL UNIX systems.

Conventions Used in this Manual

Table 1 lists the conventions used in this manual.

Table 1 Conventions Used in this Manual

Convention	Meaning
%	A percent sign (%) is the default user prompt.
class complex { . . . };	A vertical ellipsis indicates that some intervening program code or output is not shown. Only the more pertinent material is shown in the example.
,...	A horizontal ellipsis in a syntax description indicates that you can enter additional parameters, options, or values. A comma preceding the ellipsis indicates that successive items must be separated by commas.
The generic class... The get() function...	Monospaced type denotes the names of DIGITAL C++ language elements, and also the names of classes, members, and nonmembers. Monospaced type is also used in text to reference code elements displayed in examples and file-name extensions.
italic	Italic type denotes the names of variables that appear as parameters or in arguments to functions, and also denotes book titles.
boldface	Boldface type in text indicates the first instance of terms defined in text.
UPPERCASE lowercase	The DIGITAL UNIX operating system distinquishes between uppercase and lowercase characters. Literal strings that appear in text, examples, syntax descriptions, and function definitions must be entered exactly as shown.
cxx (1)	Cross-references to reference pages include the appropriate section number in parentheses.

Reader's Comments

You may send comments or suggestions regarding this manual, or any DIGITAL C++ document, by electronic mail to the following Internet address:

cxx_docs@bookie.enet.dec.com

If you have access to a FAX machine, you may send your comments or suggestions to:

DIGITAL C++ Documentation, ZKO2-3/K35
603-884-0120

Product Support

Support for DIGITAL C and C++ products is provided worldwide by DIGITAL MultivendorCustomer Services. To request information on support services in the United States and Canada, call toll-free

1-800-DIGITAL (800-344-4825)

For information on support in other countries, contact your local customer services organization.

When reporting problems to DIGITAL, please provide the following information:

• Name and version of compiler (from a listing file)
• Name and version of operating system
• Smallest possible complete source and commands needed to reproduce the problem
• An example of the incorrect results and the desired results