Compilare: user.cpp:9:33: warning: converting to non-pointer type ‘char’ from NULL [-Wconversion-null] char crtLine[MAX_LINE] = { NULL }; ^ user.cpp: In function ‘void Read()’: user.cpp:143:34: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(crtLine, MAX_LINE, fin); ^ user.cpp:149:38: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(crtLine, MAX_LINE, fin); ^