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Chapter 2. Declarations

A C++ source file contains a series of zero or more declarations. A declaration can be a function, type, object (constant or variable), namespace, template, or a related entity. The first part of this chapter covers general topics that pertain to all declarations. The second part discusses types, objects, and namespaces specifically. Function, class, and template declarations each get their own chapters: Chapter 5 covers functions; Chapter 6 covers classes and friends; and Chapter 7 covers template declarations, specializations, and instantiations.

The syntax descriptions in this chapter are informal. See Chapter 12 for a precise BNF grammar.



    		Chapter 1. Language Basics
    		Chapter 2. Declarations
    		2.1 Declarations and Definitions
    		2.2 Scope
    		2.3 Name Lookup
    		2.4 Linkage
    		2.5 Type Declarations
    		2.6 Object Declarations
    		2.7 Namespaces
    		Chapter 3. Expressions
    		Chapter 4. Statements
    		Chapter 5. Functions
    		Chapter 6. Classes
    		Chapter 7. Templates
    		Chapter 8. Standard Library
    		Chapter 9. Input and Output
    		Chapter 10. Containers, Iterators, and Algorithms
    		Chapter 11. Preprocessor Reference
    		Chapter 12. Language Reference
    		Chapter 13. Library Reference
    		Appendix A. Compiler Extensions
    		Appendix B. Projects
    		Glossary