Compilare: main.cpp: In function 'int hashf(std::__cxx11::string)': main.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i<a.size();i++) ~^~~~~~~~~ main.cpp: In function 'void read()': main.cpp:53:25: warning: suggest parentheses around assignment used as truth value [-Wparentheses] while(c=fin.read_ch()) ^ main.cpp: In function 'int main()': main.cpp:78:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i<=sir.size()-wordSize;i++) ~^~~~~~~~~~~~~~~~~~~~~ main.cpp:84:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i<sir.size()-wordSize) ~^~~~~~~~~~~~~~~~~~~~ main.cpp: In member function 'char InParser::read_ch()': main.cpp:34:29: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buff, 1, 4096, fin); ^