View Compilation Error

0_0_14230976_30547.cpp: In function 'node ok(node, node)':
0_0_14230976_30547.cpp:12:13: error: expected unqualified-id before '-' token
 #define INF -0x3f3f3f3f3f3f3f3f
             ^
0_0_14230976_30547.cpp:39:22: note: in expansion of macro 'INF'
     a.oe = max (a.oe.INF);
                      ^