In this article, we will be discussing the working, syntax, and examples of modulus functions in C++.
What is modulus function C++?
modulus function object class in C++, which is defined in <functional> header file. modulus function is a binary function object class used to get the result of the modulus operation of the two arguments. This function works the same as the operator ‘% ‘.
Syntax of modulus function
Template struct modulus : binary_function
{
T operator() (const T& a, const T& b) const {return a%b; }
};Template parameters
The function accepts the following parameter(s) −
T − This is the type of the argument passed to function call.
Example
#include <iostream>
#include <algorithm>
#include <functional&g;
using namespace std;
int main(){
//create an array
int arr[] = { 10, 20, 35, 45, 50, 61 };
int rem[6];
transform(arr, arr + 6, rem,bind2nd(modulus<int>(), 2));
for (int i = 0; i < 5; i++){
cout << arr[i] << " is a "<<(rem[i] == 0 ? "even" : "odd")<<"\n";
}
return 0;
}Output
If we run the above code it will generate the following output −
10 is a even 20 is a even 35 is a odd 45 is a odd 50 is a even