Identifiers

Identifiers provide names for the following language elements:

• Functions
• Objects
• Labels
• Function parameters
• Macros and macro parameters
• Type definitions
• Enumerated types and enumerators
• Structure and union names
• Classes and class members
• Templates
• Template parameters
• Namespaces

An identifier consists of an arbitrary number of letters, digits, or the underscore character in the form:

               .------------.
               V            |
>>-+-letter-+----+-letter-+-+----------------------------------><
   '-_------'    +-digit--+
                 '-_------'
 

Related information

• Identifier expressions (C++ only)
• The Unicode standard
• Keywords