View Compilation Error

0_0_2894930_10165.c:7: error: syntax error before '/' token
0_0_2894930_10165.c: In function `main':
0_0_2894930_10165.c:22: error: `cmp' undeclared (first use in this function)
0_0_2894930_10165.c:22: error: (Each undeclared identifier is reported only once
0_0_2894930_10165.c:22: error: for each function it appears in.)