Question

I have a comma separated integers and I want to store them in std::vector<int>. Currently I am manually doing it. Is there any built-in function which did the above functionality?

Edit:

I was in hurry and forget to put full details
Actually i have string (to be exact Unicode string) containing CSvs e.g. “1,2,3,4,5”
Now i want to store them in std::vector<int> so in above case my vector would have five elements pushed into it. Currently i am doing this by manual but its slow as well as there is lot of mess with that code

Answer 1

You can do this using purely in STL for simplicity (easy to reading, no complex libs needed), which will be fast for coding, but not the fastest in terms of execution speed (though you can probably tweak it a little, like pre-reserving space in the vector:

std::vector<int> GetValues(std::wstring s, wchar_t delim)
{
    std::vector<int> v;
    std::wstring i;
    std::wstringstream ss(s);
    while(std::getline(ss,i,delim))
    {
        std::wstringstream c(i);
        int x;
        c >> x;
        v.push_back(x);
    }

    return v;
}

(no forwarding(&&) or atoi to keep the code portable).