C++ Making/Naming vectors without initialization (in a while loop)

Question

Is there a way to make multiple vectors and name them each inside a while loop?

Example:

string name;
while(true){
    cout << "Name the vector :" << endl;
    cin >> name;
    vector<string> ?name?;
}

I know this is bad code, just want to see how it would work Couldn't find anything online, thanks in advance.

You can initialize vectors in any statement but execution is only possible after declaration. I think this solve your problem, If not add a comment here. This can help you [Initialization of vectors](https://stackoverflow.com/questions/2236197/what-is-the-easiest-way-to-initialize-a-stdvector-with-hardcoded-elements) — kvk30, Oct 14 '18 at 01:42

John Zwinck · Accepted Answer · 2018-10-14T02:33:41.507

1

Yes, you can use a std::map to bind names to objects:

string name;
map<string, vector<string>> vecs;
while(true){
    cout << "Name the vector :" << endl;
    cin >> name;
    vecs[name]; // inserts if does not exist
    vecs[name].push_back("example"); // or you can do this without the prior line
}

edited Oct 14 '18 at 02:33

answered Oct 14 '18 at 01:42

John Zwinck

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Question is about initialization not on mapping. Correct me, If I am wrong. – kvk30 Oct 14 '18 at 01:43

C++ Making/Naming vectors without initialization (in a while loop)

1 Answers1