Compilare: user.cpp: In member function ‘Huge Huge::operator+(const Huge&) const’: user.cpp:77:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (register int i = 0; i < aux.size() || i < other.size() || t != 0; ++ i) { ^ user.cpp:78:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (i == aux.size()) ^ user.cpp: In member function ‘Huge Huge::operator-(const Huge&) const’: user.cpp:121:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (register int i = 0; i < aux.size(); ++ i) { ^ user.cpp: In member function ‘bool Huge::operator==(const Huge&) const’: user.cpp:140:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (v.size() != other.size()) ^ user.cpp:143:49: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (register int i = 0; i < v.size(); ++ i) ^