//文件名:CHAPTER7-9.cpp
#include <deque>
#include <iostream>
#if _MSC_VER > 1020   // if VC++ version is > 4.2
   using namespace std;  // std c++ libs implemented in std
#endif
int main( ) 
{   deque <int> c1;
   deque <int>::iterator c1_Iter;
   c1.push_back( 10 );
   c1.push_back( 20 );
   c1.push_back( 30 );
   c1_Iter = c1.end( ); //指向c1變量中的最后一個(gè)元素的迭代器
   c1_Iter--;
   cout << "The last integer of c1 is " << *c1_Iter << endl;
   c1_Iter--;
   *c1_Iter = 400;
   cout << "The new next-to-last integer of c1 is " << *c1_Iter << endl;
   // If a const iterator had been declared instead with the line:
   // deque <int>::const_iterator c1_Iter;
   // an error would have resulted when inserting the 400
   cout << "The deque is now:";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << " " << *c1_Iter;
   return 0;
}