View Compilation Error

0_0_27645968_19038.cpp: In function 'int gcd(int, int)':
0_0_27645968_19038.cpp:11:20: error: expected ')' at end of input
     return b?gcd(b,a
                    ^
0_0_27645968_19038.cpp:11:20: error: expected ':' at end of input
0_0_27645968_19038.cpp:11:20: error: expected primary-expression at end of input
0_0_27645968_19038.cpp:11:20: error: expected ';' at end of input
0_0_27645968_19038.cpp:11:20: error: expected '}' at end of input