Compilare: user.cpp: In function ‘void readData(const char*, gutui**, int*, int*, int*)’: user.cpp:38:38: warning: format ‘%s’ expects a matching ‘char*’ argument [-Wformat=] printf("File %s not found.\n"); ^ user.cpp:30:43: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file, "%i%i%i", gmax, H, U); ^ user.cpp:34:53: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(file, "%li%li", &g[i].h, &g[i].w); ^