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HP Integrity Servers: HP aC++/HP ANSI C Release Notes
Version A.06.15

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HP Part Number: 5992-1714

Edition: Edition 10

Published: September 2007

© Copyright 2007 Hewlett-Packard Development Company L.P. All rights reserved

Table of Contents

1 HP aC++/HP ANSI C Release Notes

2 What’s New in This Version

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 Added (New)
Debugging Code Compiled with Opt Levels above +O1 Is Supported

New Features in Version A.06.12

+Ofast (-fast) and +Ofaster Options
Interaction between +Oinit_check and +check=uninit

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

3 Installation Information

Hardware Requirements

4 Compatibility Information

aC++ Standard Conformance and Compatibility Changes

Caliper Compatibility

WDB Compatibility

Difference in Class Size When Compiling in 32-bit and 64-bit Mode

Migrating From HP C++ (cfront) to HP aC++

General Programming Information and Support Questions

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

Online Documentation

Online C++ Example Source Files
Printed Documentation
Other Documentation
HP aC++ World Wide Web Homepage
HP C World Wide Web Homepage

Printable version


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© 2007 Hewlett-Packard Development Company, L.P.