vector::data
Returns a pointer to the first element in the vector.
const_pointer data() const;
pointer begin();
Return Value
A pointer to the first element in the vector Class or to the location succeeding an empty vector.
Example
// vector_data.cpp
// compile with: /EHsc
#include <vector>
#include <iostream>
int main()
{
using namespace std;
vector<int> c1;
vector<int>::pointer c1_Ptr;
vector<int>::const_pointer c1_cPtr;
c1.push_back(1);
c1.push_back(2);
cout << "The vector c1 contains elements:";
c1_cPtr = c1.data();
for (size_t n = c1.size(); 0 < n; --n, c1_cPtr++)
{
cout << " " << *c1_cPtr;
}
cout << endl;
cout << "The vector c1 now contains elements:";
c1_Ptr = c1.data();
*c1_Ptr = 20;
for (size_t n = c1.size(); 0 < n; --n, c1_Ptr++)
{
cout << " " << *c1_Ptr;
}
cout << endl;
}
The vector c1 contains elements: 1 2 The vector c1 now contains elements: 20 2
Requirements
Header: <vector>
Namespace: std