The div() function is defined in <cstdlib> header file.
Mathematically,
quot * y + rem = x
div() prototype [As of C++ 11 standard]
div_t div(int x, int y); ldiv_t div(long x, long y); lldiv_t div(long long x, long long y);
It takes a two arguments x and y, and returns the integral quotient and remainder of the division of x by y.
The quotient quot is the result of the expression x/y. The remainder rem is the result of the expression x%y.
div() Parameters
- x: Represents the numerator.
- y: Represents the denominator.
div() Return value
The div() function returns a structure of type div_t
, ldiv_t
or lldiv_t
. Each of these structure consists of two members: quot
and rem
. They are defined as follows:
div_t: struct div_t { int quot; int rem; }; ldiv_t: struct ldiv_t { long quot; long rem; }; lldiv_t: struct lldiv_t { long long quot; long long rem; };
Example: How div() function works in C++?
#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
div_t result1 = div(51, 6);
cout << "Quotient of 51/6 = " << result1.quot << endl;
cout << "Remainder of 51/6 = " << result1.rem << endl;
ldiv_t result2 = div(19237012L,251L);
cout << "Quotient of 19237012L/251L = " << result2.quot << endl;
cout << "Remainder of 19237012L/251L = " << result2.rem << endl;
return 0;
}
When you run the program, the output will be:
Quotient of 51/6 = 8 Remainder of 51/6 = 3 Quotient of 19237012L/251L = 76641 Remainder of 19237012L/251L = 121