Which is the default storage class for local variables?

auto storage class
The auto storage class is the default storage class for all local variables. The example above defines two variables with in the same storage class.

What is local and global variable?

Variables are classified into Global variables and Local variables based on their scope. The main difference between Global and local variables is that global variables can be accessed globally in the entire program, whereas local variables can be accessed only within the function or block in which they are defined.

Where local and global variables are stored?

Local Variable Vs. Global Variables

Parameter	Local	Global
Memory storage	It is stored on the stack unless specified.	It is stored on a fixed location decided by the compiler.

What is local and global variable in C++?

A scope is a region of the program and broadly speaking there are three places, where variables can be declared − Inside a function or a block which is called local variables, In the definition of function parameters which is called formal parameters. Outside of all functions which are called global variables.

What is the default initial value of an automatic and global variable *?

A variable that is declared outside any function is a Global Variable. Global variables remain available throughout the program execution. By default, initial value of the Global variable is 0(zero).

Are global variables static by default in C?

Global and static variables are initialized to their default values because it is in the C or C++ standards and it is free to assign a value by zero at compile time. Both static and global variable behave same to the generated object code.

What are the different storage classes in C?

There are primarily four storage classes in C, viz. automatic, register, static, and external.

What are the local variables stored?

Local variables get stored in the stack section. and Heap section contains Objects and may also contain reference variables. Static variables have longest scope. then local variable have less scpoe.

Are global variables stored in RAM?

The heap is a memory used by programming languages to store global variables. By default, all global variable are stored in heap memory space. It supports Dynamic memory allocation.

Where local variables are stored in C++?

Variables in C++ are stored either on the stack or the heap.

Where are global variables stored in C++?

Global variables have static storage duration. They are stored in an area that is separate from both “heap” and “stack”. Global constant objects are usually stored in “code” segment, while non-constant global objects are stored in the “data” segment.

What are the different types of storage class in C?

1 Auto Storage Class in C. The variables defined using auto storage class are called as local variables. 2 Extern Storage Class in C. Extern stands for external storage class. 3 Static Storage Class in C. The static variables are used within function/ file as local static variables. 4 Register Storage Class in C.

What is the lifespan of the variables declared using register storage class?

The variables declared using register storage class has lifespan throughout the program. It is similar to the auto storage class. The variable is limited to the particular block. The only difference is that the variables declared using register storage class are stored inside CPU registers instead of a memory.

What is a storage class in C++ variable declaration?

Storage classes (C++) A storage class in the context of C++ variable declarations is a type specifier that governs the lifetime, linkage, and memory location of objects.

What is the difference between static and a storage class specifier?

A storage class specifier in C language is used to define variables, functions, and parameters. register is used to store the variable in CPU registers rather memory location for quick access. Static is used for both global and local variables. Each one has its use case within a C program.