HP aC++/HP ANSI C A.06.27 Release Notes

• System-wide option configuration (New)
• [NO]PTRS_TO_GLOBALS Pragma (New)
• -AA -D_HP_NONSTD_FAST_IOSTREAM performance Macro (New)
• New function attributes
• Improved Diagnostics
• C++ Standard Library
HP Code Advisor
This release introduces a new tool "HP Code Advisor", that can be used for detecting various
programmer errors in C/C++ source code. Use this tool to identify potential coding errors, porting
issues and security errors.
The HP Code Advisor is being made available on both HP-UX PA and Integrity servers. It leverages
the advanced analysis capabilities of the C/C++ compilers for the Integrity servers.
Use "/opt/cadvise/bin/cadvise" to invoke the tool. A brief description is available with
the -help option.
$ /opt/cadvise/bin/cadvise -help
Additional information is available at: http://www.hp.com/go/cadvise
+cond_rodata option (Obsoleted)
The compiler now allocates more data in read-only memory. This option is now obsolete. The
compiler always behaves as if it had been specified. (Note: a previous posting of these notes
contained a typographic error. +cond_rodata was mispelled.)
+[no]dep_name option (New)
+[no]dep_name enforces strict dependent name lookup rules in templates. The default is
+nodep_name.
+expand_types_in_diag option (New)
+expand_types_in_diag expands typedefs in diagnostics so that both the original and final types
are present.
+FPmode option (Enhanced)
+FPmode specifies how the run time environment for floating-point operations should be initialized
at program start up. By default, modes are as specified by the IEEE floating-point standard: all
traps disabled, gradual underflow, and rounding to nearest. See ld(1) for specific values of
mode. To dynamically change these settings at run time, refer fenv(5), fesettrapenable(3M),
fesetflushtozero(3M), and fesetround(3M).
+Ointeger_overflow (Default Changed)
The default setting for all optimization settings is now
"moderate".+Ointeger_overflow=moderate
+Onolibcalls= option (New)
+Onolibcalls= allows you to turn off optimization for listed fun ctions.
+Onolibcalls=function1,function2,...
This allows you to turn off libcall optimizations (inlining or replacement) for calls to the listed
functions. This overrides system header files.
38 Product changes in earlier versions