HP aC++/HP ANSI C A.06.28 Release (769149-001, March 2014)

HP aC++/HP C compiler version A.06.26 provides leading edge support for C++0x standard
language features, with complete binary compatibility with earlier releases and -AA compilation
mode.
Following are the changes in HP aC++/HP C compiler version A.06.26:
• “Improved GNU compatibility and new GNU features” (page 21)
Support for GNU statement expression◦
◦ Support for GNU _Pragma
• “C++0x language extensions” (page 21)
Globally unique names◦
◦ Rvalue references
• “Option to redirect make-dependency” (page 22)
• “Support for initialization of Flexible Array Member” (page 22)
• “Improved C++ Demangler” (page 22)
• “Deprecated and obsoleted options” (page 23)
Improved GNU compatibility and new GNU features
Support for GNU statement expression
In this release, HP aC++ compiler provides support for GNU statement expressions in default
compilation mode.
In the GNU C mode of compilation (-Agcc), a compound statement enclosed in parentheses may
appear as an expression. This is now allowed in default compilation mode, that is, even without
-Agcc. This feature allows you to use loops, switches, and local variables within an expression.
Example 1 Expression in default compilation mode
({ int y = foo (); int z; if (y > 0) z = y; else z = - y; z; })
This is a valid expression for the absolute value of foo (). The last item in the compound statement
should be an expression followed by a semicolon (;). The value of this sub-expression serves as
the value of the entire construct.
Support for _Pragma ("once")
The _Pragma ("once") operator is equivalent to #pragma once. This operator ensures that
the source file is included only once during compilation.
C++0x language extensions
This release provides two new features related to C++0x language extensions.
Unnamed types and static routines are given globally unique names
The unnamed classes and enums in namespaces (including the global namespace) as well as static
functions are now mangled such that they do not collide with names from other translation units
and can be used in the mangled names of template functions.
New features in version A.06.26 21