Call By Reference in C && Call by Values in C

Call By Reference program in C

/* Program for inerchanging two numbers demonstrating Call By Reference in C */

#include<>

#include<>

void swap(int *,int *);

void main()

{

int x,y;

x=15;y=20;

clrscr();

printf("x=%d,y=%d\n",x,y);

swap(&x,&y);

//printf("\n%x %x",&x,&y);

printf("\n after interchanging x=%d,y=%d\n",x,y);

getch();

}

void swap(int *u,int *v)

{

int temp;

temp=*u;

*u=*v;

*v=temp;

return;

}

Call by Values in C

/* Program on interchanging two numbers demonstrating Call By Values in C*/

#include< stdio.h>

#include< conio.h>

void main()

{

int x,y;

x=15;y=20;

clrscr();

printf("x=%d,y=%d\n",x,y);

swap(x,y);

printf("\n after interchanging x=%d,y=%d\n",x,y);

getch();

}

swap(int u,int v)

{

int temp;

temp=u;

u=v;

v=temp;

return;

}

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