16.2 AccessingCharElements.cpp

#include <string>
#include <iostream>

int main()
{
   using namespace std;

   string stlString("Hello String"); // sample

    // Access the contents of the string using array syntax
   cout << "Display elements in string using array-syntax: " << endl;
   for(size_t charCounter = 0;
        charCounter < stlString.length();
        ++ charCounter)
    {
       cout << "Character[" << charCounter << "] is: ";
       cout << stlString[charCounter] << endl;
    }
   cout << endl;

    // Access the contents of a string using iterators
   cout << "Display elements in string using iterators: " << endl; 
   int charOffset = 0;

   for(auto charLocator = stlString.cbegin();
        charLocator != stlString.cend();
        ++ charLocator)
   {
      cout << "Character[" << charOffset ++ << "] is: ";
      cout << *charLocator << endl;
   }
   cout << endl;

   // Access contents as a const char*
   cout << "The char* representation of the string is: ";
   cout << stlString.c_str() << endl;

   return 0;
}

/* 
   // Tip: You may replace the for loop in line 25 
   // by a range based for loop that's more readable

   for(const auto& charLocator : stlString) // range-based for
   {
      cout << "Character[" << charOffset ++ << "] is: ";
      cout << charLocator << endl;
   }
*/