anagram generation

stl.cpp

#include <iostream>
#include <algorithm>
#include <string>

int main()
{
  std::string word( "dog" );
  std::sort( word.begin(), word.end() );

  do {
    std::cout << word << std::endl;
  } while ( std::next_permutation( word.begin(), word.end()) );

  return 0;
}