View Compilation Error

0_0_20596833_25468.cpp: In function 'void fastIO::flush1()':
0_0_20596833_25468.cpp:82:15: error: expected primary-expression before '%' token
   if (o!=Out) %
               ^
0_0_20596833_25468.cpp:82:15: error: expected primary-expression at end of input
0_0_20596833_25468.cpp:82:15: error: expected '}' at end of input
0_0_20596833_25468.cpp: At global scope:
0_0_20596833_25468.cpp:82:15: error: expected '}' at end of input