sizeof() operators in C

sizeof operator


sizeof() operator is used to evaluate the size of data type, variable or constant.
Example :
int main()
{
int x,y;
float k;
char ch;
double d;
x=sizeof(float); // sizeof returns 4 and assigned to x
x=sizeof(char); // sizeof returns 1 and assigned to x
x=sizeof(int); // sizeof returns 4 and assigned to x
x=sizeof(double); // sizeof returns 8 and assigned to x
x=sizeof(d); // sizeof returns 8 and assigned to x
x=sizeof(k); // sizeof returns 4 and assigned to x
x=sizeof(ch); // sizeof returns 1 and assigned to x
x=sizeof(y); // sizeof returns 4 and assigned to x
x=sizeof(45); // sizeof returns 4 and assigned to x
x=sizeof(23.67); // sizeof returns 8 and assigned to x
x=sizeof(‘a’); // sizeof returns 4 and assigned to x
return(0);
}