Programming in C++, 2nd Edition

238 Functions in C++

7.15.2 modf and modfI

The function modf breaks double into integer and fraction elements, and the function modfl

breaks long double into integer and fraction elements. These functions return the fractional

elements of a given number. They are declared as given below.

Declaration

double modf(double n, double *ip);

long double modfl(long double (n), long double *(ip));

7.27 Write a program to separate double number into integer and fractional parts.

#include<math.h>

#include<conio.h>

#include<iostream.h>

int main()

{

clrscr();

double f, i;

double num = 211.57;

f = modf(num, &i);

cout<<“\n The Complete Number: ”<<num;

cout<<“\n ...