View Compilation Error

In file included from GCC4.9.2/x86_64-w64-mingw32/include/crtdefs.h:10:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/wchar.h:9,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/cwchar:44,
                 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_16076258_5742.cpp:1:
0_0_16076258_5742.cpp: In function 'int main()':
0_0_16076258_5742.cpp:13:26: error: expected primary-expression before 'long'
         a = pow(10,tmp - __int64(tmp));
                          ^