Demonstrating fill, fill_n, generate, and generate_n Standard Library methods. : generate_n « STL Algorithms Modifying sequence operations « C++ Tutorial

1. C++ Tutorial
2. STL Algorithms Modifying sequence operations
3. generate_n

#include <iostream>
#include <algorithm>
#include <vector>

using namespace std;

char nextLetter();

int main()
{
   vector< char > chars( 10 );

   fill( chars.begin(), chars.end(), '5' );

   fill_n( chars.begin(), 5, 'A' );

   generate( chars.begin(), chars.end(), nextLetter );

   generate_n( chars.begin(), 5, nextLetter );

   cout << endl;
   return 0;
}

char nextLetter()
{
   static char letter = 'A';
   return letter++;
}