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

namespace {
  unsigned int limit = 50000000;
}

void algoCount( std::string word, char letter ) {
  for( unsigned int i = 0; i != limit; ++i )
    std::count( word.begin(), word.end(), letter );
}

void loopCount( std::string word, char letter ) {
  for( unsigned int i = 0; i != limit; ++i ) {
    int count = 0;
    std::string::iterator p( word.begin() );
    while( ++p != word.end() ) {
      if( *p == letter )
        count++;
    }
  }
}

int main() {
  std::string foo = "Hey, I'm awesome!";
  char letter = 'e';

  algoCount( foo, letter );
  loopCount( foo, letter );

  return 0;
}