INTERVIEW QUESTIONS C VARIABLES IN C DETAILS

Question: How much memory does a static variable takes?

Answer: If you declare with in a function: it retain the value between function call.

If you declare with in a function: it retain the value between function call. Source: CoolInterview.com

2 bytes Source: CoolInterview.com

static variable takes the memory of the type.

say,
static int will occupy size of int
static char will ocupy size of char

The following program proves that.

#include<stdio.h>

int main()
{
static int array[2]={10,20};
static char string[10]="Hello";
printf("
Address of element %d is %u",array[0],&array[0]);
printf("
Address of element %d is %u",array[1],&array[1]);
printf("

Address of element in string %c is %u",string[0],&string[0]);
printf("

Address of element in string %c is %u",string[1],&string[1]);
system("pause");
return 0;
}
Source: CoolInterview.com

as much as a single variable takes Source: CoolInterview.com

static is a storage class specifier it does't take any memory it says that the variable of type static is stored on data segment . Source: CoolInterview.com

1 byte Source: CoolInterview.com

The amount of memory taken by the static variable is depend on data type not depends on
static. Static is a storage specifier where the variable store( it is data segment or BSS or code area)

eg:
static int i;
static char c;
static float f;
static short int si;
printf(" %d %d %d %d ", sizeof(i), sizeof(c), sizeof(f), sizeof(si));
output: 4 1 4 2 Source: CoolInterview.com

2bytes Source: CoolInterview.com

It depends on data type of static
e.g static int i;
occupies 2 bytes Source: CoolInterview.com

It depends on the variable type u define as static.
Static variables can be declare only outside the class for c++.

Source: CoolInterview.com

A variable which is declared static occupies the same amount of memory that the variable would take when declared without the static keyword.
Eg:
int takes 2 bytes
static int also occupies two bytes.
static only secures the data in the variable. It does not modify the amount of memory occupied. Source: CoolInterview.com

A variable which is declared static occupies the same amount of memory that the variable would take when declared without the static keyword.
Eg:
int takes 2 bytes
static int also occupies two bytes.
static only secures the data in the variable. It does not modify the amount of memory occupied. Source: CoolInterview.com

Static Variable size is 4 bytes
intial value is zero Source: CoolInterview.com

As it is stored in the memory of cpu so it will take very few memory space. Source: CoolInterview.com

64 K of memory can take a static variable

Source: CoolInterview.com

the size of static variable depends on its data type.if it is an integer than it will take 4 bytes on linux and windows or 2 bytes on DOS. Source: CoolInterview.com

4 Source: CoolInterview.com

The static variable occupies the same space as any other variable of same data type.
The only difference is, even if it is declared local to a function the space for it is allocated in Data segment instead of stack.Hence its value is retained between function calls. Source: CoolInterview.com

Memory allocation of a variable depends upon its data type not on static keyword
i.e. int-2,float-4,etc.. for 32 bit compiler
but if variable is static its persistence is through out the current program . Source: CoolInterview.com

static int takes 2bytes.
static char takes 4bytes. Source: CoolInterview.com

Static char size =1
Static int size =2
Static float =4 Source: CoolInterview.com

You can find the size of static.

with the help of sizeof()

static int takes 2 bytes.
static char takes 1 byte.
static float takes 4 bytes. Source: CoolInterview.com

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