Get max value from vector [duplicate]

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• std::max_element skip over NANs 3 answers

Why my result is NaN ? How to get the maximum value from vector if it contains NaN

int main()
{
   std::vector<float> l_column;
    l_column.push_back(stof("nan"));
    l_column.push_back(stof("nan"));
    l_column.push_back(stof("-1"));
    l_column.push_back(stof("nan"));
    l_column.push_back(stof("nan"));
    l_column.push_back(stof("nan"));
    l_column.push_back(stof("1"));
    l_column.push_back(stof("nan"));
    auto mymax = *std::max_element(l_column.begin(), l_column.end());
    std::cout << mymax << std::endl;
    return 0;
}