#include <iostream> 
#include <ctime> 
#include <array> 

#include <functional> 
#include <algorithm> 

#include <boost\array.hpp> 

using namespace std; 
using namespace std::tr1; 

int getRand() 
{ 
   return rand()% 90 + 10; // 保证是两位数！ 
} 

template < typename Iter > // 只支持int，这里只是用来演示 
void print( Iter first,Iter last ) 
{ 
   copy( first,last, ostream_iterator< int >( cout," ") ); 
   cout<< endl; 
} 

int main() 
{ 
   srand( (unsigned)time( NULL ) ); 

   int test1_array[20]; 
   generate( test1_array,test1_array + 20, getRand ); 
   print( test1_array,test1_array + 20 ); 
   sort( test1_array,test1_array+20, greater<int>() ); 
   print( test1_array,test1_array + 20 ); 
   // 无法用print倒着输出！ 

   cout<<"大小是"<< sizeof(test1_array) / sizeof(int) <<endl; 

   array< int , 20 > test2_array; 
   generate( test2_array.begin(), test2_array.end(), getRand ); 
   print( test2_array.begin(), test2_array.end() ); 
   sort( test2_array.begin(), test2_array.end() ); 
   print( test2_array.begin(),test2_array.end() ); 
   cout<< "大小是"<<test2_array.size()<<endl; 

   // 优势，倒着输出，如此简单！ 
   print( test2_array.rbegin(), test2_array.rend() ); 

   boost::array< int, 24 > test3_array; 
   generate( test3_array.begin(), test3_array.end(), getRand ); 
   print( test3_array.begin(),test3_array.end() ); 
   print( test3_array.rbegin(),test3_array.rend() ); 

   return 0; 
}