View Compilation Error

0_0_17682921_14022.cpp: In function 'void move(int, int)':
0_0_17682921_14022.cpp:134:3: error: 'F' was not declared in this scope
   F = o;
   ^
0_0_17682921_14022.cpp:140:3: error: 'F' was not declared in this scope
   F = lc(rc(o));
   ^
0_0_17682921_14022.cpp:146:6: error: 'F' was not declared in this scope
   fa(F) = NULL;
      ^
0_0_17682921_14022.cpp:27:16: note: in definition of macro 'fa'
 #define fa(o) (o -> fa)
                ^
0_0_17682921_14022.cpp:153:15: error: 'F' was not declared in this scope
   lc(rc(p)) = F;
               ^