STL 预编译通过但是不能实现一个实例

sybaselu

1. 
   
2. #include <string>
   
3. #include <list>
   
4. #include <deque>
   
5. #include <vector>
   
6.             
   
7. #include <bits/stl_list.h>
   
8. #include <bits/stl_deque.h>
   
9. #include <bits/stl_vector.h>
   
10. 
    
11.    
    
12. int main(void)
    
13. {
    
14. #if 0
    
15.     vector<int>& Vec;
    
16. #endif
    
17. 
    
18.     return 0;
    
19. }   
    

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系统是Fedore Core3 ，关掉条件编译则成功，打开则失败，错误如下：

1. 
   
2. [root@root STL]# g++ test.cpp -o test
   
3. test.cpp: In function `int main()':
   
4. test.cpp:15: error: `vector' undeclared (first use this function)
   
5. test.cpp:15: error: (Each undeclared identifier is reported only once for each function it appears in.)
   
6. test.cpp:15: error: expected primary-expression before "int"
   
7. test.cpp:15: error: expected `;' before "int"
   
8. [root@root STL]#
   

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x11

using namespace std