Initializer List in C++

[King Of CPP]

Hi , how to create an initializer list for an array-like class ??
The class is using a template by the way ...

[MiiNiPaa]

Something like that:

#include <iostream>
#include <vector>
#include <string>
#include <initializer_list>

template <typename T>
struct array
{
    array(std::initializer_list<T> in) : data(in), sum()
    {
        for(const auto& e: in)
            sum += e;
    }

    std::vector<T> data;
    T sum;
};

int main()
{
    array<double> foo {5.0, 3, 2.1};
    for(const auto& e: foo.data)
        std::cout << e << ' ';
    std::cout << '\n' << foo.sum << '\n';

    array<std::string> bar {"I ", "AM ", "GROOT"};
    for(const auto& e: bar.data)
        std::cout << e << ' ';
    std::cout << '\n' << bar.sum << '\n';
}

[King Of CPP]

Will this work on C++ 98 projects?

[MiiNiPaa]

No.

[King Of CPP]

I want to write a C++ 98 project , please give me a C++ 98 code if you can.

[mutexe]

I want to write a C++ 98 project

If you keep asking people for code, you won't exactly be writing it will you?

[MiiNiPaa]

No, this is not possible in C++03. Create variable and then add needed values.