Choosing to Pass Classes Directly - Oracle® Solaris Studio 12.4: C++ User's Guide

Oracle® Solaris Studio 12.4: C++ User's Guide

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Updated: March 2015

Oracle^® Solaris Studio 12.4: C++ User's Guide

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Using This Documentation

Part I C++ Compiler

Part II Writing C++ Programs

Chapter 4 Language Extensions

4.1 Linker Scoping

4.2 Thread-Local Storage

4.3 Overriding With Less Restrictive Virtual Functions

4.4 Making Forward Declarations of enum Types and Variables

4.5 Using Incomplete enum Types

4.6 Using an enum Name as a Scope Qualifier

4.7 Using Anonymous struct Declarations

4.8 Passing the Address of an Anonymous Class Instance

4.9 Declaring a Static Namespace-Scope Function as a Class Friend

4.10 Using the Predefined __func__ Symbol for Function Name

4.11 Supported Attributes

4.12 Compiler Support for Intel MMX and Extended x86 Platform Intrinsics

Chapter 5 Program Organization

5.1 Header Files

5.2 Template Definitions

Chapter 6 Creating and Using Templates

6.1 Function Templates

6.2 Class Templates

6.3 Template Instantiation

6.4 Template Composition

6.5 Default Template Parameters

6.6 Template Specialization

6.7 Template Problem Areas

Chapter 7 Compiling Templates

Chapter 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

Chapter 9 Improving Program Performance

9.1 Avoiding Temporary Objects

9.2 Using Inline Functions

9.3 Using Default Operators

9.4 Using Value Classes

9.4.1 Choosing to Pass Classes Directly

9.4.2 Passing Classes Directly on Various Processors

9.5 Cache Member Variables

Chapter 10 Building Multithreaded Programs

10.1 Building Multithreaded Programs

10.2 Using Exceptions in a Multithreaded Program

10.3 Sharing C++ Standard Library Objects Between Threads

10.4 Memory Barrier Intrinsics

Part III Libraries

Part IV Appendixes

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9.4.1 Choosing to Pass Classes Directly

To maximize the chance that a class will be passed directly:

Use default constructors, especially the default copy constructor, where possible.
Use the default destructor where possible. Because the default destructor is not virtual, a class with a default destructor should generally not be a base class.
Avoid virtual functions and virtual bases.

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