string.find_last_of(substring) : string find « string « C++ Tutorial

1. C++ Tutorial
2. string
3. string find

#include <iostream>
using std::cout;
using std::endl;

#include <string>
using std::string;

int main()
{
   string string1( "This is a test string!");
   int location;
   
   location = string1.find_last_of( "is" );
   cout << "\n\n(find_last_of) found '" << string1[ location ] 
        << " at: " << location;
        

   return 0;
}

(find_last_of) found 'i at: 18"