View Compilation Error

0_0_36751488_29865.cpp: In function 'int main()':
0_0_36751488_29865.cpp:104:12: error: cannot convert 'std::queue<_Tp, _Sequence>::empty<int, std::deque<int, std::allocator<int> > >' from type 'bool (std::queue<int>::)() const' to type 'bool'
   while(!q.empty)q.pop();
            ^
0_0_36751488_29865.cpp:104:12: error: in argument to unary !