View Compilation Error

In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_pair.h:59:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_algobase.h:64,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/char_traits.h:39,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:40,
                 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_26302454_19930.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h: In instantiation of 'void std::swap(_Tp&, _Tp&) [with _Tp = const long long int]':
0_0_26302454_19930.cpp:95:12:   required from here
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:176:11: error: assignment of read-only reference '__a'
       __a = _GLIBCXX_MOVE(__b);
           ^
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/move.h:177:11: error: assignment of read-only reference '__b'
       __b = _GLIBCXX_MOVE(__tmp);
           ^