Compilare: user.cpp: In function ‘void davaloare(std::string)’: user.cpp:65:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<s.size()) ^ user.cpp: In function ‘std::vector<TOK> tokenizeaza(std::string)’: user.cpp:79:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==s.size()) ^ user.cpp: In function ‘void creeazafunctie(std::string)’: user.cpp:151:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i<s.size()) ^ user.cpp: In function ‘int eval(std::string)’: user.cpp:187:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(corect>0&&i<s.size()) ^ user.cpp:162:9: warning: unused variable ‘poz’ [-Wunused-variable] int poz=0; ^ user.cpp:202:9: warning: unused variable ‘nrs’ [-Wunused-variable] int nrs=0; ^