Call by value
Call
by value is copying the value of a variable in another variable. So any change
made in the copy will not affect the original location.
int
a=10;
void
fun(int a)
fun(a);
{
Definition;
}
Here,
fun(a) is a call by value.
Note:
Any change, which is done within the function is local and will not change the
outside function.
Example:
#include<stdio.h>
void
main()
{
int
a=10; //a is read as 10
printf(“%d”,a);
fun(a);
printf(“%d”,a);
//a is read as 10
}
void
fun(int x) //x is read as 10
printf(“%d”,x);
x++;
printf(“%d”,x);
//x is read as 11
}
OUTPUT
10
10 11 10
