View Compilation Error

0_0_30141333_21228.cpp:37:15: error: expected '{' before '_GLIBCXX_VISIBILITY'
 namespace std _GLIBCXX_VISIBILITY(default)
               ^
0_0_30141333_21228.cpp:37:34: error: expected constructor, destructor, or type conversion before '(' token
 namespace std _GLIBCXX_VISIBILITY(default)
                                  ^
0_0_30141333_21228.cpp:101:1: error: expected '}' at end of input
 } // namespace
 ^