تابع ‎abs()‎‎ در ‎C++‎

// cmath's abs example
#include <iostream>// std::cout
#include <cmath>// std::abs

int main ()
{
std::cout << "abs (3.1416) = " << std::abs (3.1416) << 'n';
std::cout << "abs (-10.6)= " << std::abs (-10.6) << 'n';
return 0;
}