Function getRandomRemainingArgs

tests/unit/operations.cpp:480–519

template <NumQubitsFlag Targs, ArgsFlag Args>
auto getRandomRemainingArgs(vector<int> targs) {

    if constexpr (Args == none)
        return tuple{ };

    if constexpr (Args == scalar) {
        qreal angle = getRandomPhase();
        return tuple{ angle };
    }

    if constexpr (Args == axisrots) {
        qreal angle = getRandomPhase();
        qreal x = getRandomReal(-1, 1);
        qreal y = getRandomReal(-1, 1);
        qreal z = getRandomReal(-1, 1);
        return tuple{ angle, x, y, z };
    }

    if constexpr (Args == compmatr || Args == diagmatr) {
        auto matrix = getRandomApiMatrix<Targs,Args>(targs.size()); // allocates heap mem
        return tuple{ matrix };
    }

    if constexpr (Args == diagpower) {
        DiagMatr matrix = getRandomApiMatrix<Targs,Args>(targs.size()); // allocates heap mem
        qcomp exponent = qcomp(getRandomReal(-3, 3), 0); // real for unitarity
        return tuple{ matrix, exponent };
    }

    if constexpr (Args == paulistr) {
        PauliStr str = getRandomPauliStr(targs);
        return tuple{ str };
    }

    if constexpr (Args == pauligad) {
        PauliStr str = getRandomPauliStr(targs);
        qreal angle = getRandomPhase();
        return tuple{ str, angle };
    }
}


template <NumQubitsFlag Targs, ArgsFlag Args>