Question

Write a program to make the pointer to the function for swapping two integers.

Answer 1

/* Answer on Question#43023 - Subject - Programming, C++ */#include <stdio.h>#include <stdlib.h>void (*p) ( int, int ); /* pointer to function */void swap( int x, int y) /* swapping two integer function */{   int temp = y; /*temp var*/   y = x;        /* swapping */   x = temp;   printf("Integers after awapping...\nx= %d\ny= %d\n",x,y);}int main()  /* main function*/{   int x,y;          printf("x= ");  /* user's input of integers */   scanf("%d",&x);    printf("y= ");   scanf("%d",&y);   p = &swap;   /*  pointer to swap */    p(x,y);   /* call the function */   system("pause");   return 0;}