Quickstart¶

To use pXart, you have to make two decisions.

Which build system will be used to make pXart available to your current project?
Which build system will be used for your own project?

We explicitly support the installation of pXart by using build2 or CMake. But because it is a header-only library, other build systems should work as well.

pXart's Hello-World Example: Monte Carlo π¶

#include <iostream>
//
#include <pxart/pxart.hpp>

int main(){
    // Construct pxart's scalar MT19937.
    pxart::mt19937 rng{};
    // Start Monte Carlo computation of π.
    constexpr int samples = 100'000'000;
    int result = 0;
    for (auto i = samples; i > 0; --i){
        // Let pxart generate uniformly distributed numbers.
        const auto x = pxart::uniform<float>(rng);
        const auto y = pxart::uniform<float>(rng);
        // Test if sample lies inside the circle.
        result += (x*x + y*y <= 1);
    }
    std::cout << "pi = " << 4.0f * result / samples << "\n";
}

Last update: January 18, 2021