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
