Cast

[onetwo123]

In the first version my code gives me double. In the second version it gives me int. Why that?

1 version:

std::cout << "Making and changing  of container with the help of methods" << std::endl;
    std::vector<double> v_each (5);
    std::vector<double>::iterator pos1;
    out << "Generate()" << std::endl;
    std::generate(v_each.begin(), v_each.end(), Random);
    bool flag1 = false;
    for (pos1 = v_each.begin(); pos1 != v_each.end(); ++pos1) { 
        auto minmax = std::minmax_element(v_each.begin(), v_each.end());
        Avarage1 = (double)((*minmax.first + *minmax.second) / 2.0);
        if (!flag1) {
            out << "MAX = " << (double)*minmax.second << std::endl;
            out << "MIN = " << (double)*minmax.first << std::endl;
            out << "Avarage = " << (double)Avarage1 << std::endl;
            flag1 = true;
        }
        out << (double)*pos1 << std::endl;
    }
    out2 << "\nChanging  of container with the help of method for_each()" << std::endl;
    std::for_each(v_each.begin(), v_each.end(), AvarageSum1);
    outfile(v_each);

2 version:

std::list<double> v_transform (5);
    std::list<double>::iterator pos2;
    out << "\nGenerate()" << std::endl;
    std::generate(v_transform.begin(), v_transform.end(), Random);
    bool flag2 = false;
    for (pos2 = v_transform.begin(); pos2 != v_transform.end(); ++pos2) {
        auto minmax = std::minmax_element(v_transform.begin(), v_transform.end());
        Avarage2 = (double)((*minmax.first + *minmax.second) / 2.0);
        if (!flag2) {
            out << "MAX = " << (double)*minmax.second << std::endl;
            out << "MIN = " << (double)*minmax.first << std::endl;
            out << "Avarage = " << (double)Avarage2 << std::endl;
            flag2 = true; 
        }
        out << (double)*pos2 << std::endl;
    }   
    out2 << "\nChanging  of container with the help of method transform()" << std::endl;
    std::transform(v_transform.begin(), v_transform.end(), v_transform.begin(), AvarageSum2);
    outfile(v_transform);

outfile():

template <class T>
 void outfile(T& Container) {
     std::ofstream out("output.txt", std::ofstream::app);
 
     typename T::iterator it3;
     for (it3 = Container.begin(); it3 != Container.end(); ++it3) {
         out << (double)*it3 << std::endl;
     }
     std::cout << "File output" << std::endl;
 }

[kbw]

What's different in the 2 versions?

[onetwo123]

What's different in the 2 versions?

It's the same)) but it gives me another types. I don't know why

[kbw]

What do you mean by "gives me another types"? Is it the formatting of the output?

[onetwo123]

What do you mean by "gives me another types"? Is it the formatting of the output?

I have vector and list. I search for max and min then I get (max + min)/2 and It add to all elements of cotainer. But (max + min)/2 can be double. So sum in the end also can be double.
But in vector I get double. In list I get int but It should be double.

[TomCPP]

What type are Avarage1 and Avarage2 ?

[kbw]

You've divided by 2.0, which is a double, so result is double, not int. Why do you think one of them is an int?