multiply by 100 to get a percent

  
#include <algorithm>
#include <functional>
#include <iomanip>
#include <vector>
#include <iostream>

using namespace std;

template <class T>
void print(T& c){
   for( typename T::iterator i = c.begin(); i != c.end(); i++ ){
      std::cout << *i << endl;
   }
}


int main()
{
   const float d1[] = { 1.11, 2.22, 3.33, 4.44, 5.55 };
   const float d2[] = { 6.66, 7.77, 8.88, 9.99, 1.11 };

   vector<float> v2( d2,d2 + sizeof( d2 ) / sizeof( d2[0] ) );
   vector<float> v1( d1,d1 + sizeof( d1 ) / sizeof( d1[0] ) );

   vector<float> change( v2.size() );

   // multiply by 100 to get a percent
   transform( change.begin(), change.end(), change.begin(),bind2nd( multiplies<float>(), 100.0f ) );

   print( change );
}

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multiply by 100 to get a percent : bind2nd « STL Algorithms Helper « C++

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