Method pow

src/Base/Unit.cpp:212–227

}

Unit Unit::pow(const double exp) const
{
    auto apply = [&](const auto val) {
        const auto num {val * exp};
        if (std::fabs(std::round(num) - num) >= std::numeric_limits<double>::epsilon()) {
            throw UnitsMismatchError("pow() of unit not possible");
        }

        return static_cast<decltype(val)>(val * exp);
    };

    UnitExponents res {};
    std::transform(_exps.begin(), _exps.end(), res.begin(), apply);

    return Unit {res};
}

UnitExponents Unit::exponents() const
{