Why is my function producing "invalid operands of types" error?

asvalk1672 0
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I've created two functions that reference each other. My round_to function is supposed to round two floats to the nearest integer, and then my modulo_round function is supposed to reference that function and return floor(x * y) modulo p.

#include <iostream>
#include <cmath>

using namespace std;

int round_to(float x, float y) {

    int sum = round(x*y);
    
    return sum;

}

int modulo_round(float x, float y, int p) {

    return floor(round_to(x, y)) % p;

}

int main() {

    cout << modulo_round(3.12, 3.45, 9);

}

But I'm getting an error that says: error: invalid operands of types '__gnu_cxx::__enable_if<true, double>::__type' {aka 'double'} and 'int' to binary 'operator%'

Can someone explain what's wrong with my code?

function c++
1 Answers

I did some changes to your function modulo_round.

int modulo_round(float x, float y, int p) {

int sum = round(x*y);

int mod = sum % p;

return mod;

Hope this fixes the problem!

Skerdi Velo0
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