HP C/aC++ for PA-RISC Software manual 12

Example....................................................................................................................	149
typename Keyword..........................................................................................................	149
Usage.......................................................................................................................	149
Example....................................................................................................................	149
Overloading new[] and delete[] for Arrays...............................................................................	150
Example.........................................................................................................................	151
Standard Exception Classes...................................................................................................	152
Example.........................................................................................................................	152
Exceptions Thrown by the Standard C++ Library.......................................................................	153
type_info Class.....................................................................................................................	153
Unsupported Functionality......................................................................................................	154
7 Optimizing HP aC++ Programs................................................................	156
Requesting Optimization........................................................................................................	156
Setting Basic Optimization Levels.......................................................................................	156
Level 1 Optimization....................................................................................................	156
Level 2 Optimization....................................................................................................	156
Level 3 Optimization....................................................................................................	157
Level 4 Optimization....................................................................................................	157
Additional Options for Finer Control...................................................................................	157
Enabling Aggressive Optimizations................................................................................	157
Enabling Only Conservative Optimizations.....................................................................	158
Removing Compilation Time Limits When Optimizing.......................................................	158
Limiting the Size of Optimized Code..............................................................................	158
Combining Optimization Options..................................................................................	158
Profile-Based Optimization................................................................................................	158
Instrumentation...........................................................................................................	159
Collecting Data for Profiling..........................................................................................	159
Maintaining Profile Data Files.......................................................................................	159
Example 1.................................................................................................................	160
Example 2.................................................................................................................	160
Performing Profile-Based Optimization............................................................................	160
Pragmas That Control Optimization.........................................................................................	160
8 Exception Handling................................................................................	161
Exception Handling..............................................................................................................	161
Exception Handling in C++...............................................................................................	161
Exception Handling as Defined by the ANSI/ISO C++ International Standard.........................	162
Basic Exception Handling Example....................................................................................	162
Function Try Block Examples..............................................................................................	162
Debugging Exception Handling.........................................................................................	163
Performance Considerations..............................................................................................	163
Using Threads......................................................................................................................	163
Rogue Wave Standard C++ Library 2.2.1...........................................................................	163
Rogue Wave Standard C++ Library 1.2.1 and Tools.h++ 7.0.6..............................................	163
Using Locks.....................................................................................................................	163
Required Command-line Options.......................................................................................	164
Rogue Wave Standard C++ Library 2.2.1.......................................................................	164
Rogue Wave Standard C++ Library 1.2.1 and Tools.h++ 7.0.6..........................................	164
Limitations.......................................................................................................................	165
Using -D_THREAD_SAFE with the cfront Compatible libstream...........................................	165
Differences between Standard iostreams and cfront Compatible libstream...........................	165
Using -D__HPACC_THREAD_SAFE_RB_TREE...................................................................	165
Exception Handling..........................................................................................................	166
Pthreads (POSIX Threads).......................................................................................................	166
Limitations.......................................................................................................................	166

12 Contents