The Sun Workshop Compiler Pascal 4.2 is an implementation of the Pascal language that includes all the standard language elements and many extensions. These extensions allow greater flexibility in programs include:

• Separate compilation of programs and modules

• dbx (symbolic debugger) support, including fix-and-continue functionality

• Optimizer support

• Multiple label, const, type, and var declarations

• Variable-length character strings

• Compile-time initializations

• static and extern declarations

• Additional sizes of integer and real data types

• Integers in any base from 2 to 16

• Extended input/output facilities

• Extended library of built-in functions and procedures

• Universal and function and procedure pointer types

• Specification of the direction of parameter passing as one of the following:

  • Into a routine
  • Out of a routine
  • Both into and out of a routine

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Note - All references to Pascal in this manual refer to the Sun Workshop Compiler Pascal 4.2 unless otherwise indicated.

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For other release-specific information, see the README file.

• Chapter 1, "Lexical Elements"

• Chapter 2, "Data Types"

• Chapter 3, "Statements"

• Chapter 4, "Assignments and Operators"

• Chapter 5, "Program Declarations"

• Chapter 6, "Built-In Procedures and Functions"

• Chapter 7, "Input and Output"

This manual also has four appendixes:

• Appendix A, "Overview of Pascal Extensions," summarizes the Pascal extensions to standard Pascal, and serves as a quick reference guide to the differences between Pascal and standard Pascal.

• Appendix B, "Pascal and DOMAIN Pascal," lists the differences between Pascal and Apollo DOMAIN Pascal.

• Appendix C, "Implementation Restrictions," describes Pascal features that are implementation-defined.

• Appendix D, "Pascal Validation Summary Report," summarizes the features, errors, and extensions in the manufacturer's statement of compliance for the validation of the Pascal Version 4.2 compiler.

The following table describes the type styles and symbols used in this manual:

Table  P-2 Typographic Conventions

Typeface or Symbol	Meaning	Example
AaBbCc123	The names of commands, files, and directories; on-screen computer output	Edit your .login file. Use ls -a to list all files. hostname% You have mail.
AaBbCc123	What you type, contrasted with on-screen computer output	hostname% su Password:
AaBbCc123	Command-line placeholder: replace with a real name or value	To delete a file, type rm filename.
AaBbCc123	Book titles, new words or terms, or words to be emphasized	Read the User's Guide. These are called class options. You must be root to do this.

• The Pascal User's Guide, which describes how to use the Pascal 4.2 compiler
• The Pascal Quick Reference Card, which summarizes the compiler options

Manual Page

After you install the documentation, you can read about pc by entering the man command followed by the command name, as in:

hostname% man pc

This directory contains the following files:

• A Pascal 4.2 README, called pascal, which describes the new features, software incompatibilities, and software bugs of Pascal 4.2.

• A floating-point white paper, "What Every Scientist Should Know About Floating-Point Arithmetic," by David Goldberg, in PostScript^TM format. The file is called floating-point.ps, and can be printed on any PostScript-compatible printer that has Palatino font. It can be viewed online by using the imagetool command:

  	hostname% imagetool floating-point.ps
  

This paper is also available in the AnswerBook system.

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