On c++ vector how to cout the values from a vector function

Question

#include <iostream>
#include <vector>
using namespace std;

    vector<int> newvector() {
        vector<int> v;
        v.push_back(5);
        return v;
    }
int main(){
cout << newvector();

}

When I run this code I got an error in cout how to run this properly to return a out as vector

Something like `for(auto i : newvector()) cout << i << '\n';` — πάντα ῥεῖ, Nov 21 '22 at 11:54
`cout` doesn't print `vector` items directly. You need to iterate your `vector` and then print their items. More: https://stackoverflow.com/questions/10750057/how-do-i-print-out-the-contents-of-a-vector — Ugnius Malūkas, Nov 21 '22 at 11:55

score 0 · Answer 1 · answered Nov 21 '22 at 11:57

0

You must iterate through each element of the vector and std::cout it individually.

int main(){
   vector<int> myVector = newvector();
   for(int i = 0; i < myVector.size(); i++)
      cout << myVector[i] << '\n';

   /* Alternatively
   for(int element : myVector)
      cout << element << '\n';
   */

   return 0;
}

answered Nov 21 '22 at 11:57

Warm Red

287
2
8

Ya ok but in java we can use toString() to print the value so is any way here to do that ? – VISHNU Nov 21 '22 at 13:40
I am afraid there isn't such a thing here. You may need to write your own function or overload this stream insertion operator to achieve such a thing. – persona Nov 21 '22 at 13:45

On c++ vector how to cout the values from a vector function

1 Answers1