View Compilation Error

0_0_21018815_1947.cpp:2:1: error: expected unqualified-id before numeric constant
 10
 ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/cwchar:44:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/postypes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iosfwd:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_21018815_1947.cpp:5:
GCC4.9.2/x86_64-w64-mingw32/include/wchar.h:16:32: error: expected declaration before end of line
 #pragma pack(push,_CRT_PACKING)
                                ^