Compilare: user.cpp: In function ‘int main()’: user.cpp:140:31: 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,buff_size,f1); ^ user.cpp: In function ‘void citeste(int&)’: user.cpp:19:25: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] buff_poz = 0; ^ user.cpp:28:25: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] buff_poz = 0; ^