C++ Storage Class: Definition & Examples

[mdnazmulh]

what is storage class in c++?

 

[nmtim]

Do you mean like volatile, automatic, static?

Tim

 

[quicknote]

A storage class in C++ is a keyword that specifies the type of storage allocation and scope of a variable or function in a program. There are four main storage classes in C++: auto, register, static, and extern.

The auto storage class is the default for all local variables and is used to declare variables that are stored in the computer's memory.

The register storage class is used to declare variables that should be stored in the CPU's register for faster access.

The static storage class is used to declare variables that retain their values even after the function has exited. These variables have a global scope and can be accessed by any function within the program.

The extern storage class is used to declare variables or functions that are defined in a different file. This allows for the sharing of variables and functions between multiple files in a program.

Overall, the storage class in C++ provides flexibility and control over how variables and functions are stored and accessed in a program. By understanding the different storage classes and their uses, a programmer can optimize their code for efficiency and organization.