View Compilation Error

0_0_21601292_10922.cpp:1:34: error: 'alloc' does not name a type
 template <class T, class Alloc = alloc>
                                  ^
0_0_21601292_10922.cpp:3:1: error: expected unqualified-id before '...' token
 ...
 ^
0_0_21601292_10922.cpp:6:7: error: 'iterator' does not name a type
       iterator finish;        //表示目前使用空间的尾 
       ^
0_0_21601292_10922.cpp:7:7: error: 'iterator' does not name a type
       iterator end_of_storage; //表示目前可用空间的尾
       ^
0_0_21601292_10922.cpp:8:1: error: expected unqualified-id before '...' token
 ... 
 ^