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div() Function with Example in C++

C++ div() function: Here, we are going to learn about the div() function with example of cstdlib header in C++ programming language.
Submitted by IncludeHelp, on May 28, 2020

C++ div() function

div() function is a library function of cstdlib header. It is used for integral division, it accepts two parameters (numerator and denominator) and returns a structure that contains the quot (quotient) and rem (remainder).

Syntax of div() function:

C++11:

  div_t div (int numer, int denom);
 ldiv_t div (long int numer, long int denom);
lldiv_t div (long long int numer, long long int denom);

Parameter(s):

numer – represents the value of numerator.
denom – represents the value of denominator.

Return value:

The return type of this function is div_t / ldiv_t / lldiv_t, returns a structure that contains the quot (quotient) and rem (remainder).

Example:

    Input:
    long int n = 10;
    long int d = 2;
    ldiv_t result;

    Function call:
    result = div(n, d);

    Output:
    result.quot = 5
    result.rem = 0

C++ code to demonstrate the example of div() function

// C++ code to demonstrate the example of
// div() function

#include <iostream>
#include <cstdlib>
using namespace std;

// main() section
int main()
{

    long int n = 10;
    long int d = 2;
    ldiv_t result;

    result = div(n, d);

    cout << "Numerator  : " << n << endl;
    cout << "Denominator: " << d << endl;
    cout << "Quotient   : " << result.quot << endl;
    cout << "Remainder  : " << result.rem << endl;
    cout << endl;

    n = 100;
    d = 12;

    result = div(n, d);

    cout << "Numerator  : " << n << endl;
    cout << "Denominator: " << d << endl;
    cout << "Quotient   : " << result.quot << endl;
    cout << "Remainder  : " << result.rem << endl;
    cout << endl;

    n = 300;
    d = 123;

    result = div(n, d);

    cout << "Numerator  : " << n << endl;
    cout << "Denominator: " << d << endl;
    cout << "Quotient   : " << result.quot << endl;
    cout << "Remainder  : " << result.rem << endl;
    cout << endl;

    return 0;
}

Output

Numerator  : 10
Denominator: 2
Quotient   : 5 
Remainder  : 0 

Numerator  : 100
Denominator: 12
Quotient   : 8 
Remainder  : 4 

Numerator  : 300
Denominator: 123
Quotient   : 2 
Remainder  : 54