Saturday, 15 December 2018

sizeof operator

sizeof operator

The sizeof operator is used to calculate the size of data type or variables. This operator returns the size of its variable in bytes.
For example: sizeof(a), where a is interger, will return 4.

Syntax

sizeof(variable)

Example

#include<stdio.h>
#include<conio.h>

void main()
{
int a;
float b;
double c;
char d;
printf("Size of Integer: %d bytes\n",sizeof(a));
printf("Size of float: %d bytes\n",sizeof(b));
printf("Size of double: %d bytes\n",sizeof(c));
printf("Size of character: %d byte\n",sizeof(d));
getch();
}

Output

Size of Integer: 2
Size of float: 4
Size of double: 8
Size of character: 1

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