//文件名:CHAPTER7-15.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, c2, c3;
   deque <int>::iterator c1_Iter;
   c1.push_back( 1 );
   c1.push_back( 2 );
   c1.push_back( 3 );
   c2.push_back( 10 );
   c2.push_back( 20 );
   c3.push_back( 100 );
   cout << "The original deque c1 is: ";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << *c1_Iter << " ";
   cout << endl;
   c1.swap( c2 ); // 把c1和 c2兩個容器中的內容進行相互交換
   cout << "After swapping with c2, deque c1 is: ";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << *c1_Iter << " ";
   cout << endl;
   swap( c1,c3 ); // 把c1和 c3兩個容器中的內容進行相互交換
   cout << "After swapping with c3, deque c1 is: ";
   for ( c1_Iter = c1.begin( ); c1_Iter != c1.end( ); c1_Iter++ )
      cout << *c1_Iter << " ";
   cout << endl;
   return 0;
}