Highlighting Conventions

Bold

Identifies commands, keywords, files, directories, and other items whose names are predefined by the system.

Italics

Identify parameters whose actual names or values are to be supplied by the programmer. Italics are also used for the first mention of new terms.

Example

Identifies examples of specific data values, examples of text similar to what you might see displayed, examples of portions of program code, messages from the system, or information that you should actually type.

Examples are intended to be instructional and do not attempt to minimize run time, conserve storage, or check for errors. The examples do not demonstrate all of the possible uses of language constructs. Some examples are only code fragments and will not compile without additional code.

This document uses marked bracket separators to delineate large blocks of text and icons to delineate small segments of text as follows:

Table 1. Qualifying Elements

Qualifier/Icon	Meaning
C only	The text describes a feature that is supported in the C language only, or describes behavior that is specific to the C language.
C++ only	The text describes a feature that is supported in the C++ language only; or describes behavior that is specific to the C++ language.
IBM® extension	The text describes a feature that is an IBM compiler extension to the standard language specifications.