I'm currently getting into subroutines/subprograms or whatever you call them in english and in this specific assignment that i'm trying to solve I have to calculate the average length of two words.

void Length(string const text_1,
            string const text_2,
            int & total_length,
            double & mean_length)
{
    total_length = text_1.length()   text_2.length();
    mean_length = static_cast<double>(total_length) / 2;
}

void Length_Program(int val)
{
    string text_1;
    string text_2;
    int total_length{};
    double mean_length{};

    cout << "Mata in två ord: ";
    cin >> text_1 >> text_2;
    cout << "Totallängd: ";
    Length(text_1, text_2, total_length, mean_length);
    cout << total_length << endl;
    cout << "Medellängd: " << fixed << setprecision(1) << mean_length;

}

I have set the precision to setprecision(1) and I assume it will only write one decimal but I keep getting two decimals. my example is: abcd E it should say that it is an average of 2.5 words but it says 2.51 for some reason. Can someone help me understand what i'm doing wrong?

CodePudding user response：

Your problem is that you forgot << endl on your last output line. The return code shown by the OS is appended to your output. The setprecision is working just fine.