HP aC++/HP C A.06.25 Release Notes
Table Of Contents
- HP aC++/HP ANSI C Release Notes
- Table of Contents
- 1 HP aC++/HP ANSI C Release Notes
- 2 What’s New in This Version
- New Features in Version A.06.25
- C99 default C compilation mode (Changed)
- Full -AA default C++ compilation mode (Changed)
- -Ax option enables support for several C++0x extensions (New)
- C99 features added to C++0x (New)
- extern template
- Decimal Floating Point supported in C++ mode (New)
- #pragma STDC FLOAT_CONST_DECIMAL64 (New)
- #pragma omp task (New)
- #pragma omp taskwait (New)
- Performance enhancements for +O1 (Changed)
- Non-template static data members initialized outside the class no longer treated as constants in strict mode (Changed)
- Enhancements to allow code to run well on current platforms and future multi-core processors (New)
- New diagnostic messages (New)
- Improved diagnostic messages (Changed)
- Enhanced +wendian warnings (New/Changed)
- New runtime abort messages (New)
- New Features in Version A.06.20
- Decimal floating-point arithmetic (HP-UX 11.31 only) (New)
- +annotate=structs (New)
- +check=lock (New)
- +check=thread (New)
- +O[no]autopar now supported in C++ Mode (New)
- +O[no]dynopt (HP-UX 11.31 only) (New)
- +inline_level num (Enhanced)
- -dumpversion (New)
- #include_next (New)
- #pragma diag_push (New)
- #pragma diag_pop (New)
- +Oinlinebudget is deprecated (Change)
- In next release, default C compilation mode will change from C89 to C99
- In next release, default C++ compilation mode will change to full -AA
- New Features in Version A.06.15
- printf, fprintf Optimization (New)
- +Wmacro Option (New)
- +Wcontext_limit Option (New)
- +wperfadvice Option (New)
- +Wv Option (New)
- +wlock Option (New)
- +O[no]autopar Option (New)
- +O[no]loop_block Option (New)
- +O[no]loop_unroll_jam (Default Change)
- +Olit=all (Default Change for HP C)
- +macro_debug= (New)
- +pathtrace (New)
- +check Suboptions (New)
- -Bhidden_def (New)
- -dM (New)
- #pragma OPT_LEVEL INITIAL (New)
- #pragma OPTIMIZE (Deprecated)
- #pragma [NO]INLINE (New for C++ Mode)
- _Asm_ld, _Asm_ldf, _Asm_st, _Asm_stf Intrinsics (New)
- Debugging Code Compiled with Opt Levels above +O1 Is Supported
- __attribute__ ((visibility("default"|"protected"|"hidden"))) Added (New)
- __attribute__ ((warn_unused_result)) Added (New)
- Change in treatment of cv-qualified assignment operators
- New Features in Version A.06.12
- New Features in Version A.06.10
- HP Code Advisor
- +cond_rodata Option (Obsoleted)
- +[no]dep_name Option (New)
- +expand_types_in_diag Option (New)
- +FPmode Option (Enhanced)
- +Ointeger_overflow (Default Changed)
- +Onolibcalls= Option (New)
- +wendian Option (New)
- +wlint Option (Enhanced)
- +wsecurity= Option (Enhanced)
- System-wide Option Configuration
- [NO]PTRS_TO_GLOBALS Pragma
- -AA -D_HP_NONSTD_FAST_IOSTREAM Performance Improvement Macro
- New Function Attributes
- Improved Diagnostics
- C++ Standard Library Change
- Earlier Versions
- New Features in Version A.06.25
- 3 Installation Information
- 4 Compatibility Information
- 5 Known Problems and Workarounds
- Obsolete LANG-STARTUP Files
- codecvt_byname Facet Needed for C Locale Conversions
- Using +check= Options and Running on Test and Deployment Systems
- GPREL22 Relocation Error
- Object Files Generated at +O4 or -ipo
- Incompatibilities Between the Standard C++ Library Ver. 1.2.1 and the Draft Standard
- Conflict Between macros.h and numeric_limits Class (min and max)
- Known Limitations
- 6 Related Documentation

6 Related Documentation
Documentation for HP aC++ / HP C is described in the following sections.
Online Documentation
The following online documentation is included with the HP aC++/HP C products:
• HP aC++ Programmer’s Guide
Access this guide in any of the following ways:
— Use the +help command-line option: /opt/aCC/bin/aCC +help
— From your web browser, enter the appropriate URL:
file:/opt/aCC/html/C/guide/index.htm
NOTE: All of the files composing the guide are installed in the /opt/aCC/
html/C/guide/ directory. If you choose to move the entire English guide to
a different location without having to edit any links, you need to move all of
the subdirectories in /opt/aCC/html/C/guide/.
— The guide (excluding Rogue Wave documentation) is also available on the
World Wide Web at http://docs.hp.com/hpux/dev/index.html.
• HP-UX 64-bit Porting and Transition Guide
This guide helps developers transition applications from an HP-UX 32-bit platform
to the HP-UX 64-bit platform. It is available on the HP-UX 11.x CD-ROM and on
the World Wide Web at: http://docs.hp.com/hpux/dev/index.html
• HP Linker and Libraries Online User Guide
To access, use the command: /usr/ccs/bin/ld +help
• HP Wildebeest Debugger (HP WDB)
HP WDB documentation is available in /opt/langtools/wdb/doc
HP WDB and its related documentation are available online at http://
www.hp.com/go/wdb
• Rogue Wave Software Standard C++ Library 2.2.1 Class Reference
This reference contains an alphabetical listing of all of the classes, algorithms, and
function objects in the updated Rogue Wave Standard C++ Library. The library
includes the standard iostream library and has namespace std enabled.
The reference is provided as HTML formatted files. You can view these files with
an HTML browser by opening the file /opt/aCC/html/libstd_v2/stdref/
index.htm or select the hyperlink from HP aC++ Programmer’s Guide.
Online Documentation 53