slsDetectorPackage/sample/useResult.cpp

#include "Result.h"
#include "ToString.h"
#include <algorithm>
#include <iostream>

auto main() -> int {

    using sls::Result; // declared in namespace sls
    using sls::ToString;

    std::cout << "Examples on usage of Result<T>\n";

    // Result exposes the underlying constructors of std::vector
    Result<int> res{1, 2, 3, 4, 5};
    std::cout << "res: " << res << '\n';

    Result<double> res2(5, 3.7);
    std::cout << "res2: " << res2 << '\n';

    // and can be converted to and from a vector. However, the
    // conversion to a vector is not efficient since a copy is made
    // and should only be done when a vector is needed for further use
    // in most sense and in standard algorithms Result<T> behaves as a
    // vector.
    std::vector<int> vec(5, 5);
    std::cout << "vec: " << ToString(vec) << "\n";

    Result<int> res3 = vec;
    std::cout << "res3: " << res3 << '\n';

    std::vector<int> vec2 = res3;
    std::cout << "vec2: " << ToString(vec2) << "\n";


    // Using squash we can also convert to a single value
    std::cout << "res.squash(): " << res.squash() << '\n';
    std::cout << "res3.squash(): " << res3.squash() << '\n';

    //.squash also takes a default value
    std::cout << "res.squash(-1): " << res.squash(-1) << '\n';
    std::cout << "res3.squash(-1): " << res3.squash(-1) << '\n';

    Result<int> ivec{1, 3, 5};

    Result<sls::time::ns> nres(ivec);
    // for (const auto& i : ivec)
    //     nres.push_back(sls::time::ns(i));
    std::cout << "nres: " << sls::ToString(nres) << '\n';
    //
}