Version A.01.21 Features

The latest linker patch (PHSS_17903) is needed to build shared libraries and to use the new +objdebug option. See these release notes, Chapter 2, Current Linker Required, for details.

A new debugging option , +objdebug, enables faster links and smaller executable file sizes for large applications.

Header File Caching is an additional, simplified method of precompiling header files.

Additional Options for Standardizing Your Code:

Additional Options for Standardizing Your Code:

Additional Options for Code Optimization:

A new template option, +inst_directed, to suppress assigner output in object files. Use it instead of the +inst_none option with code that contains explicit instantiations only and does not require automatic (assigner) instantiation.

The #pragma pack directive allows you to specify the maximum alignment of class fields having non-class types. This pragma may be useful when importing code from other architectures where data type alignment may be different from default PA-RISC alignment.

Three new pragmas for improving performance of shared libraries.

By eliminating references to the standard header files and libraries bundled with HP aC++, the +nostl option allows experienced users full control over the header files and libraries used in the compilation and linking of their applications.

Additional information about HP aC++ diagnostic messages is provided in the HP aC++ Online Programmer's Guide and the HP aC++ Transition Guide.

To see which include files led to an error or warning, specify the -Wc,-diagnose_includes,on option.

With floating installation, more than one version of HP aC++ can be installed on one system at the same time.

The __HP_aCC predefined macro now contains the HP aC++ driver version number. For version A.01.21: __HP_aCC = 012100

The __HP_aCC predefined macro was introduced in HP aC++ version A.01.15. It's value was 1 for HP aC++ A.01.15 and A.01.18.

In prior releases, the standard C++ library (libstd) and RogueWave's tools.h++ library (librwtool) were not thread safe in all cases. The -D__HPACC_THREAD_SAFE_RB_TREE preprocessor macro insures thread safety.