Compilare: main.cpp: In function 'bool str_match(std::string)': main.cpp:28:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | while(s[i+cnt]==str[cnt] && cnt<str.size()) cnt++; | ~~~^~~~~~~~~~~ main.cpp:29:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | if(cnt==str.size()) return true; | ~~~^~~~~~~~~~~~