zar.cpp: In function 'void roll_right(zar&)': zar.cpp:21: warning: 'A.zar::F[0u]' is used uninitialized in this function zar.cpp: In function 'void roll_left(zar&)': zar.cpp:33: warning: 'A.zar::F[0u]' is used uninitialized in this function zar.cpp: In function 'void roll_down(zar&)': zar.cpp:45: warning: 'A.zar::F[0u]' is used uninitialized in this function zar.cpp: In function 'void roll_up(zar&)': zar.cpp:57: warning: 'A.zar::F[0u]' is used uninitialized in this function