Compilare: user.cpp: In function ‘int main()’: user.cpp:46:17: warning: unused variable ‘cod’ [-Wunused-variable] int i,x,y,f,cod,T; ^ user.cpp: In function ‘void Read(int&)’: user.cpp:23:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz == DIM) fread(buff,1,DIM,fin),poz=0; ^ user.cpp:27:53: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if(++poz == DIM) fread(buff,1,DIM,fin),poz=0; ^