constant references : reference « Data Type « C++

1. C++
2. Data Type
3. reference

constant references

  
#include <iostream>
#include <string>
#include <vector>

using namespace std;

//a constant reference to a vector of strings
void display(const vector<string>& v);

int main()
{
    vector<string> v;
    v.push_back("A");
    v.push_back("B");
    v.push_back("C");  
    
    display(v);

    return 0;
}

void display(const vector<string>& vec)
{
    for (vector<string>::const_iterator iter = vec.begin(); 
         iter != vec.end(); ++iter)
         cout << *iter << endl;
}
  
    
  

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