CODEWITHSUNDEEP
c++arraysiterator
Bearforce96
Bearforce96

Reputation: 109

Returning iterator index on an array search

I would like to search for a specific number and have an iterator track the array element being tested. If the number is found I would like to return the index of the array where the number is found. Here's what I have so far:

    vector<int>::iterator iterator;
    find(vector.begin(),vector.end(), num);

    if(//the number is found in the search)
    {
       return //where the number is found
    }

I'm not quite sure how to sync the iterator up with the element of the array being tested. I would appreciate any help toward solving this problem if possible.

Upvotes: 0

Views: 285

Answers (1)

Jts
Jts

Reputation: 3527

This should do what you want:

std::vector<int> v = {500, 600, 700};
auto it = std::find(v.begin(),v.end(), 600);
std::size_t pos = it - v.begin(); //found(iterator) - begin(iterator)

// of course first you should check if (it != v.end())

Upvotes: 2

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