Microsoft Visual C++/cli step by Step

C++ keywords and identifiers

A C++ keyword (also called a reserved word) is a word that means something to the compiler. The 

keywords used in the example application are using, namespace, and return. You’re not allowed to use 

these keywords as variable or function names; the compiler will report an error if you do. You’ll find 

that Visual Studio helps you identify keywords by displaying them in a special color.

An identifier is any name that the programmer uses to represent variables and functions. An identi-

fier must start with a letter and must contain only letters, numbers, or underscores. The following are 

legal C++ identifiers:

■

■

My_variable

■

■

AReallyLongName

The following are not legal C++ identifiers: