Compilare: main.cpp: In function 'short int op_and(short int, short int)': main.cpp:66:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'short int op_xor(short int, short int)': main.cpp:103:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'short int op_new(short int, short int)': main.cpp:127:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In constructor 'InputReader::InputReader(const char*)': main.cpp:11:43: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^ main.cpp: In member function 'void InputReader::advance()': main.cpp:33:47: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread(buffer, SIZE, 1, input_file); ^