vector data() in C++

data(): It is a build-in function in the STL library. It returns the pointer to the first element of the

vector.

Syntax:

dataType *pointer = vecName.data()

Parameters:

Their is no parameter requird for this funstion

File: stl_vector.h

For Example:

vec = {1,2,3,4,5}

*pointer = vec.data() => It points to the first element (i.e 1)

Approach

C++

#include <bits/stdc++.h>
using namespace std;

int main()
{
    vector<int> vec = {1, 2, 3, 4, 5};

    int *it = vec.data();

    for (int i = 0; i < vec.size(); i++)
        cout << *it++ << " ";

    return 0;
}