c++ std::fmin
#include <iostream>
#include <cmath>
int main()
{
std::cout << "fmin(2,1) = " << std::fmin(2,1) << '\n'
<< "fmin(-Inf,0) = " << std::fmin(-INFINITY,0) << '\n'
<< "fmin(NaN,-1) = " << std::fmin(NAN,-1) << '\n';
}