PDAL backtrace test

bt.cpp

#include <iostream>
#include <pdal/util/Utils.hpp>

int main()
{
    const auto bt(pdal::Utils::backtrace());
    if (bt.empty()) std::cout << "No backtrace!" << std::endl;
    else
    {
        std::cout << "Backtrace:" << std::endl;
        for (const auto& l : bt) std::cout << l << std::endl;
    }
    return 0;
}