Using auto in Range-Based for Loops on string value - C++ STL

Description

Using auto in Range-Based for Loops on string value

Demo Code

#include <iostream> 
#include <string> 

using namespace std; 

int main(int argc, char *argv [])
{   /*w  w  w. j  av  a2  s. c o  m*/

        string myString{ "This is my string!" }; 
        for (auto &letter : myString) 
        { 
                letter = 'a'; 
                cout << letter << endl; 
        } 
          
        for (const auto &letter : myString) 
        { 
                cout << letter << endl; 
        } 
        return 0; 
}

Result

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