About This Manual

Audience

This manual is for compiler writers, system programmers, and application programmers who do not have high-level language support of Digital Portable Mathematics Library (DPML) routines in their language of choice. This audience needs to access DPML routines directly from their application programs.

New and Changed Features

The following routines are new in this release:

• ilogb

• rint

Organization

This manual consists of the following:

Chapter 1 gives a general overview of the mathematics library and discusses supported data types, exception behavior, and IEEE considerations.

Chapter 2 explains the presentation format of a DPML routine and how to interpret a routine's interface, and alphabetically lists the routines.

Appendix A lists the floating-point boundary values used by the DPML routines.

Appendix B contains the complete list of entry-point names.

The Glossary lists mathematical terms and symbolic names used in this manual, and provides a brief definition.

Related Documents

Printed and online versions of Digital UNIX and OpenVMS documentation sets are available.

Some books in the documentation set help meet the needs of several audiences. For example, the information in some system books is also used by programmers. Keep this in mind when searching for information on specific topics.

The Documentation Overview, Glossary, and Master Index provides information on all of the books in each of Digital's documentation sets.

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Conventions

In this manual, every use of OpenVMS Alpha means the OpenVMS Alpha operating system.

The following conventions are also used in this manual:

italic text       Italicized text indicates important 
                  information or complete titles of manuals.

boldface text     Bolded text represents the 
                  introduction of a new term.

numbers           All numbers in text are assumed to be decimal,
                  unless otherwise noted. Nondecimal radixes - binary,
                  octal, or hexadecimal - are explicitly indicated.

< >               Angle brackets - standard C notation for system
                  header files.