C++ Compiler Options

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This appendix details the command-line options for the C++ compiler. The features described apply to all platforms except as noted; features that are unique to the Oracle Solaris OS on SPARC-based systems are identified as (SPARC), and the features that are unique to the Oracle Solaris and Oracle Linux OS on x86-based systems are identified as (x86). Features limited to the Oracle Solaris OS only are marked (Solaris); features limited only to Oracle Linux OS are marked (Linux).

The typographical conventions that are listed in the Preface are used in this section of the manual to describe individual options.

Parentheses, braces, brackets, pipe characters, and ellipses are metacharacters used in the descriptions of the options and are not part of the options themselves.

A.1 How Option Information Is Organized

To help you find information, compiler option descriptions are separated into the following subsections. If the option is one that is replaced by or identical to some other option, see the description of the other option for full details.

Table 30 Option Subsections

Subsection	Contents
Option Definition	A short definition immediately follows each option. (There is no heading for this category.)
Values	If the option has one or more values, this section defines each value.
Defaults	If the option has a primary or secondary default value, it is stated here. The primary default is the option value in effect if the option is not specified. For example, if `–compat` is not specified, the default is`–compat=5`. The secondary default is the option in effect if the option is specified, but no value is given. For example, if `–compat` is specified without a value, the default is `-compat=5`.
Expansions	If the option has a macro expansion, it is shown in this section.
Examples	If an example is needed to illustrate the option, it is given here.
Interactions	If the option interacts with other options, the relationship is discussed here.
Warnings	Cautions regarding use of the option are noted here, as are actions that might cause unexpected behavior.
See also	This section contains references to further information in other options or documents.
“Replace with” “Same as”	If an option has become obsolete and has been replaced by another option, the replacement option is noted here. Options described this way might not be supported in future releases. If two options have the same general meaning and purpose, the preferred option is referenced here. For example, “Same as `-xO`” indicates that`-xO` is the preferred option.