Compilare: user.cpp: In constructor ‘Aho::Aho()’: user.cpp:13:20: warning: left operand of comma operator has no effect [-Wunused-value] sizeof(tr, 0x00, sizeof(tr)); ^ user.cpp:13:35: warning: right operand of comma operator has no effect [-Wunused-value] sizeof(tr, 0x00, sizeof(tr)); ^ user.cpp:13:15: warning: statement has no effect [-Wunused-value] sizeof(tr, 0x00, sizeof(tr)); ^ user.cpp: In function ‘void get_count()’: user.cpp:77:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<rvq.size(); ++i) { ^ user.cpp:80:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<rvq[i]->halt.size(); ++j) ^