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Oracle Solaris Studio 12.3: C++ User's Guide     Oracle Solaris Studio 12.3 Information Library
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Part I C++ Compiler

1.  The C++ Compiler

2.  Using the C++ Compiler

3.  Using the C++ Compiler Options

Part II Writing C++ Programs

4.  Language Extensions

5.  Program Organization

6.  Creating and Using Templates

7.  Compiling Templates

8.  Exception Handling

8.1 Synchronous and Asynchronous Exceptions

8.2 Specifying Runtime Errors

8.3 Disabling Exceptions

8.4 Using Runtime Functions and Predefined Exceptions

8.5 Mixing Exceptions With Signals and Setjmp/Longjmp

8.6 Building Shared Libraries That Have Exceptions

9.  Improving Program Performance

10.  Building Multithreaded Programs

Part III Libraries

11.  Using Libraries

12.  Using the C++ Standard Library

13.  Using the Classic iostream Library

14.  Building Libraries

Part IV Appendixes

A.  C++ Compiler Options

B.  Pragmas



8.3 Disabling Exceptions

If you know that exceptions are not used in a program, you can use the compiler option features=no%except to suppress generation of code that supports exception handling. The use of the option results in slightly smaller code size and faster code execution. However, when files compiled with exceptions disabled are linked to files using exceptions, some local objects in the files compiled with exceptions disabled are not destroyed when exceptions occur. By default, the compiler generates code to support exception handling. Unless the time and space overhead is significant, leaving exceptions enabled is usually better.

Note - Because the C++ standard library, dynamic_cast, and the default operator new require exceptions, you should not turn off exceptions when you compile in standard mode (the default mode).