LinuxQuestions.org - I am just not seeing this error kinda need an extra pair of eyes please (C++)

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I am just not seeing this error kinda need an extra pair of eyes please (C++)

trail.cpp

Code:

#include <cmath>

#include <iostream>

using namespace std;



int find(double, double);



int main(void){



        double num, pos;



        cout << "Please enter a positive integer and the number of";

        cout << "trailing digits:  ";



        cin >> pos >> num;



        find(pos,num);



}

find.cpp

Code:

#include <cmath>

#include <iostream>

using namespace std;



void find(double pos,double num){

        int trail;



        trail = pos % pow(10.0,num);



        cout << endl;

        cout << "The "<<num<<" trailing digits of "<<pos<<" are ";

        cout << trail<<".\n";



}

the error is: Line 19 is just below int main (void) in trail.cpp

Code:

find.cpp: In function ‘void find(double, double)’:

find.cpp:19: error: invalid operands of types ‘double’ and ‘double’ to binary ‘operator%’

I appreciate any help up front

In C/C++ there's no modulo operator defined for floating point values, but you have the option to use functions like fmod.

so change doubles to int's and now that I think I really don't need to mod the pow*pow(10, num).
so it should work with

Code:

ans=num%divider ( changing nec variables)

For your basic experiments you'll just be fine with integers. It won't hurt though to also read up on the floating point data types as well. They certainly take a special place and require different handling than integers.