C / C ++库函数div_t div（int numer，int denom）将numer（分子）除以denom（分母）。下面是div()函数的声明。
div_t div(int numer, int denom)
参数是分子和分母。此函数以<cstdlib>定义的结构返回该值，该结构具有两个成员。对于div_t：int quot; 诠释
#include <iostream>
#include <cstdlib>
using namespace std;
int main () {
div_t output;
output = div(27, 4);
cout << "Quotient part of (27/ 4) = " << output.quot << endl;
cout << "Remainder part of (27/4) = " << output.rem << endl;
output = div(27, 3);
cout << "Quotient part of (27/ 3) = " << output.quot << endl;
cout << "Remainder part of (27/3) = " << output.rem << endl;
return(0);
}输出结果
Quotient part of (27/ 4) = 6 Remainder part of (27/4) = 3 Quotient part of (27/ 3) = 9 Remainder part of (27/3) = 0