C++ :: Determining If A Float Is Odd / Even

determining if a value entered in loop is an odd or even number. Also, the value can't be int because it may be a decimal value(therefore i cant use the if(x%==0).

I need to replace the if(value%2 ==0) else num_even++ statement in my code with something else that will work with float to determine odd vs even.

#include <iostream>
using namespace std;
int main() {
int num_values;
float sum_values = 0;
int num_neg_values = 0;
int num_pos_values = 0;

[code]....