Compilare: user.cpp: In function ‘bool ASCIIValidator(std::string)’: user.cpp:18:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < binary.length(); i++) ^ user.cpp: In function ‘int main()’: user.cpp:40:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < binary.length(); i++) ^ user.cpp:28:14: warning: unused variable ‘fileSize’ [-Wunused-variable] long int fileSize = fin1.tellg(); ^ user.cpp: In function ‘bool ASCIIValidator(std::string)’: user.cpp:22:23: warning: ‘number’ may be used uninitialized in this function [-Wmaybe-uninitialized] return number % 2 == 0; ^