Storage Classes

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Introduction to Pointers Pointer Notation Symbols used in Pointers in C Declaring a Pointer Null Pointers Enumeration (enum) in C

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Storage Classes

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Storage Classes	Storage Place	Default Value	Scope	Life-time
auto	RAM	Garbage Value	Local	Within function
extern	RAM	Zero	Global	Till the end of main program, may be declared anywhere in the program
static	RAM	Zero	Local	Till the end of main program, may be declared multiple functions call
register	Register	Garbage Value	Local	Within function

Practice Questions:

Output:

A static count variable is initialized as 0 initially.And then incremented twice as the function is called twice.As,it is a static variable it will keep its value till the end of the program.

So,after the 1st function call, the value of count changes to 0+1=1 and then after the 2nd function call it changes to 1+1=2.

Output:

In this question,count is a local variable hence a variable will be destroyed when a function call where a variable was declared is over.Hence,value gets incremented(count++) to 1.So,after 1st function call we get value as 1 but it remains the same after 2nd function call as well.

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Storage Classes

C Programming Language

C Programming Language

Loops In C

Loops In C

Functions in C

Functions in C

Pointers

Pointers

Type Casting in C

Type Casting in C

Arrays in C

Arrays in C

Strings in C

Strings in C

Structures

Structures

Union in C

Union in C

Storage Classes