Compilare: user.cpp: In function ‘int main()’: user.cpp:134:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int idx = 0; idx < v.size(); idx += 10) { ~~~~^~~~~~~~~~ user.cpp: In instantiation of ‘void RadixSorter<T, typename std::enable_if<((sizeof (T) % 2) == 0)>::type>::resize(int) [with T = int; typename std::enable_if<((sizeof (T) % 2) == 0)>::type = void]’: user.cpp:52:15: required from ‘void RadixSorter<T, typename std::enable_if<((sizeof (T) % 2) == 0)>::type>::radixsort(std::vector<_Tp>&) [with T = int; typename std::enable_if<((sizeof (T) % 2) == 0)>::type = void]’ user.cpp:128:35: required from here user.cpp:99:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (aux_.size() < n) {