Function Pointers in C and C++

A short program illustrating function pointers in C and C++.

//This program illustrates the use of function pointers in C and C++.

#include<stdio.h>

#include<conio.h>

void f1(int x);

void f2(int y);

void f3(void (*f)(int p),int n);

void main()

{

void (*f4)(void);

void (*f)(int p);

f4=&clrscr;

f4();

f=&f1;

f1(3);

(*f)(3);

f=&f2;

f2(3);

(*f)(3);

f3(&f1,4);

f3(&f2,4);

getch();

}

void f3(void (*f)(int p),int n)

{

(*f)(n);

}

void f1(int x)

{

printf("\n%d",2*x);

}

void f2(int y)

{

printf("\n%d",3*y);

}

Function Pointers program on GIT.

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